TJ1500-R3 System Guide

System Guide TJ1500

© Copyright by Tejas Networks Ltd. 2000-2008 All Rights reserved worldwide.

This document contains information that is the property of Tejas Networks Ltd. This document may not be copied, reproduced, reduced to any electronic medium or machine readable form, or otherwise duplicated, and the information herein may not be used, disseminated or otherwise disclosed, except with the prior written consent of Tejas Networks Ltd.

Tejas Networks Ltd. reserves the right, without prior notice or liability, to make changes in equipment design or specifications.

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Table of Contents

INTRODUCTION 6

Product Family 6

SYSTEM OVERVIEW 8

Product Releases 8 TJ1500-R2 8 TJ1500-R3 9

Interfaces 9 Service Interfaces 9 Clock Interfaces 10 Management Interface 11 Engineering OrderWire Interface (EOW) 11

Cross-Connect 11

HARDWARE DESCRIPTION 12

Introduction 12

Hardware Structure 12 Card Configuration Details 13 XCC02 15 XCC03 15 TE33 card (3xE3/DS3) 15 TET63 (63xE1) 16 A012 (2xSTM-1) 16 A018 (8xSTM-1/2xSTM-4) 16 A161 (1xSTM-16) 16 A162 (2xSTM-16) 17 A164T (1xSTM-16/4xSTM-4) 17 TP01 (8xFE) 17 TR03 (2xGE) 17 TR04 (2xGE/8xFE) 18 ELAN01 (8xFE/2xGE) 18 Multi-Function Card (MFC1) 18 Power Supply Module (PSM) 19 Power Supply Module2 (PSM2) 19

SYSTEM FUNCTIONAL DESCRIPTION 20

Configurations 20 Terminal Multiplexer (TMUX) 20 Add-Drop Multiplexer (ADM/MADM) 20

Protection 20 Equipment Protection Switching 20 Cross-connect Card Redundancy 20 Power Supply Redundancy 20 1+1 MSP 21 MS-SPRing Protection 21 Sub-Network Connection Protection (SNCP) 21 Tributary Protection Switching 21 Timing Reference Switching 21 LCAS Protection 22

Synchronization and Timing 22

Network Management and Management Connectivity 22

Power and Environment Monitoring 23

Performance Monitoring 23

APPLICATIONS 24

Networking Applications 24 STM-16/4 Rings 24 STM-1/4/16 Subtended Rings 25

Ethernet Network Application 25 Ethernet Private Line application 25 Ethernet Virtual Private Line application 27 Ethernet Private Local Area Network application 28 Ethernet Virtual Private Local Area Network application 28

TEJAS NETWORK ELEMENT SOFTWARE 30

NES Functions 30

NETWORK MANAGEMENT SYSTEM 32

Characteristics of NMS 32 TMN (FCAPS) Functionality 33 Generic Features 33 Advanced Features 33

Network Management Functions 33 Performance Management 33 Fault Management 33 Configuration Management 34 Security Management 34

Management Connectivity 35 Networking based on LAN 35

TECHNICAL SPECIFICATIONS 36

Interface Specification 36 Interface Types 36 STM-16 Interface Specification 37 STM-4 Interface Specification (If Applicable) 38 STM-1 Interface Specification (If Applicable) 39 E1 Interface Specification 40 E3/DS3 Interface Specification 41 Ethernet Interface Specification 41

Equipment Performance 42 OrderWire Telephone Function 42 Network Management Function 42 EMI Safety Specification 42 Power Supply and Power Consumption 42

Mechanical Dimension 43

Environmental Requirements 43 Working Environment 43 Packaging and Transportation 43

SYSTEM STABILITY SPECIFICATIONS 45

ACRONYMS 46

Table of Figures Figure 1: TJ1500 front view................................................................................................................ 8 Figure 2: TJ1500 Slot View............................................................................................................... 12 Figure 3: STM-16/4 Ring Configuration........................................................................................ 24 Figure 4: STM-16/4/1 Subtended Ring Structure ........................................................................ 25 Figure 5: EPL implementation......................................................................................................... 26 Figure 6: EVPL Implementation ..................................................................................................... 27 Figure 7: EPLAN Implementation.................................................................................................. 28 Figure 8: EVPLAN Implementation .............................................................................................. 29

Chapter

1 Introduction

The TJ1500 is a Synchronous Multiplexer at STM-16 line bit-rate and is software configurable to work as Terminal Multiplexer and Multiple Add-Drop Multiplexer.

The TJ1500 provides SDH and PDH interfaces at E1, E3/DS3, STM-1, STM-4 and STM-16 rates and also provides Ethernet interfaces at 10/100BaseT, 10/100Base-Fx and GE ports. The TJ1500 supports termination of one or more STM-16 ring(s) on the aggregate interfaces and multiple STM-1/4 rings at the tributary ports. The STM-16 aggregate ring consists of TDM portion (drop/add of E1, E3/DS3, STM-1/4 tributaries), point-to-point –VCAT channels, Point-to-multipoint-VCAT channels and Multipoint to multipoint-VCAT channels. The services are all software provisioned using the same line and interface cards as per ITU-T recommendations.

Product Family TJ1500 is part of the TJ100 family. The TJ100 products provide the functionality of a high end SDH ADM (Add-Drop Multiplexer) with full drop capability. The products support a diverse range of data and circuit interfaces. Digital cross-connect at fine granularity and data switching functionality along with the modular interface cards provide carriers a very flexible and most optimized way of configuring the product in their networks. The product can be configured in Ring and Linear architectures. The product can also be configured with equipment redundancy for all or for a selected few among the modules. These make the product ideal for backbone and high-speed links. Support for data allows carriers to combine the functionality of data switching with transport.

Software Intelligence built into the products allow for intuitive element management using the Tejas Element Management System, which supports the full suite of FCAPS (Fault, Configuration, Accounting, Performance and Security) management. TejNMS (Tejas Network Management solution) provides extremely easy provisioning of circuits across the network using a point and click user interface. The management system integrates the management of other Tejas Products as well, allowing easy upgradation and expansion of networks. Standard open interfaces also allow the system to be managed by third party management systems.

To summarize, Tejas Network Management solution and the TJ100 products provide the following features:

Easy network manageability

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Flexible Configuration

Lower cost per line

Easy upgradeability

Support for both data and voice over SDH

Higher reliability

Tejas Networks Ltd. 7

Chapter

2 System Overview

This chapter gives a brief overview of the salient product features and specifications of the TJ1500. Figure 1 shows the front view of the TJ1500 network element.

Figure 1: TJ1500 front view

Product Releases TJ1500 has two releases till date.

TJ1500-R2 The TJ1500-R2 is a STM-1/4/16, maximum 8U high multi-slot (two PSM slots, two XCC/controller card slots, two aggregate card slots and nine tributary card slots) product, supporting redundancy of cross-connect fabric with a cross-connect capacity of 12.5G, timing/synchronization subsystem, and control processor subsystem. It also has redundant power supply modules enabling power supply redundancy as well as power source redundancy.

Cards supported in TJ1500-R2

XCC02


PSM

A012

A018

A161

A164T

TE33

TET63

TP01

TR03

TR04

ELAN01

TJ1500-R3 The TJ1500-R3 is a STM-1/4/16, maximum 8U high multi-slot (two PSM slots, two XCC/controller card slots, two aggregate card slots and nine tributary card slots) product. TJ1500-R3 supports redundancy of cross-connect fabric with a cross-connect capacity of 20G, timing/synchronization subsystem, and control processor subsystem. It also has redundant power supply modules enabling power supply redundancy as well as power source redundancy. The PSM2 provides higher power dissipation. Cards supported in TJ1500-R3

PSM2 (PSM2 card has to be used in TJ1500-R3 as it provides the necessary power dissipation for TJ1500-R3)

XCC03

A162

Note 1: These cards are in addition to the cards supported in TJ1500-R2 Note 2: The cards that were supported in previous release continue to be supported along with the new cards. Interfaces Service Interfaces The TJ1500 supports the following interfaces—STM-1o/e, STM-4o, STM-16o, E1, E3/D3 and 10/100BaseT/x and GE Interfaces (Long Haul).


Table 1 lists the type and the number of interfaces available on the TJ1500 network element.

Table 1: TJ1500 Interfaces

Interface Type Details Cards

Maximum Interfaces Available

Comments

A161 1

A162 2 Supported in TJ1500-R3 STM-16 Optical Interface

A164T 1

A164T 4 STM-4 Optical Interface A018 2

A012 2

SDH Interfaces

STM-1 Optical Interface A018 8

Note: The STM-1 interfaces in the A018 cards are field configurable to work as electrical or optical interfaces. A018 can also be configured to work as 2xSTM-4 by using ports 4 and 8 for STM-4.

E3/DS3 TE33 3 PDH Interface E1 TET63 63

ELAN01 2

TR03 2 1000Mbps: SX, LX

TR04 2

ELAN01 8FE

TR04 8FE

Ethernet Interface

10/100Mbps: FE

TP01 8FE

Clock Interfaces The TJ1500 provides timing requirement as per ITU-T Rec.G703. Apart from the internal oscillator, the TJ1500 supports BITS-1, BITS-2, E1 and STM-16 signals as clock.


Table 2: Clock Interfaces

Interface Type Details Cards Maximum interfaces available

BITS-1 (2Mhz) XCC02, XCC03 1 BITS Interface

BITS-2 (2Mbps) XCC02, XCC03 1

A161 1

A162 2 STM-16 interfaces

A164T 1

A018 2 STM-4 interfaces

A164T 4

A012 2

Ports

STM-1 interfaces A018 8

Management Interface The TJ1500 provides F1-UDC interface for Data communication applications and two serial interfaces for accessing the craft application. IBC is facilitated using the ECC bytes (F1, F2, DCC-R, and DCC-M) and the E1 and VC-12 management channels on the STM ports. Sixty-four bytes of the SDH frame are used for IBC.

Engineering OrderWire Interface (EOW) The TJ1500 provides an EOW interface for equipment maintenance. The E1 and E2 bytes in the frame are used for the OrderWire application.

Cross-Connect The TJ1500 provides cross-connect capability with a granularity of VC-4, VC-3 and VC-12 bit rate. The valid combinations of cross-connects supported are 128 x 128 STM-1, 384 x 384 VC-3 and 8064 x 8064 VC-12. The cross-connects are non-blocking and can be created dynamically between STM rings terminating on the TJ1500 network elements.


Chapter

3 Hardware Description

Introduction The TJ1500 is a multi-slot chassis product, which provides 12 traffic slots for aggregate and tributary cards, including the common cards. These common cards do not carry traffic and serve functions such as Power Filtering, Cross-connect and System controller (XCC performs function of both the cross-connect and system controller). The line cards can support STM-1, STM-4, STM-16, STM-1 electrical, E1, and E3/DS3, 10/100 BaseT and 10/100 BaseFx and Gigabit Ethernet.

Hardware Structure The Multi-Function Card (MFC) is horizontal and is provided at the top of the chassis (slot 16). The Power Supply Module (PSM/PSM2) is provided in the vertical slots 1 and slot 15. The cross-connect and controller cards (XCC02/XCC03) are fixed in slots 8 and 9. Tributary cards can be inserted in slots 2, 3, 4, 5, 6, 11, 12, 13 and 14. The Aggregate cards can be fixed in slots 7 and slot10. The fan tray unit is provided in slot 17.

Figure 2: TJ1500 Slot View


Card Configuration Details Table 3 gives the details of the cards and the interfaces present on the cards used in the TJ1500.

Table 3: Card Configuration Details

Card Acronym

Slot No. Of Interfaces Comments

XCC02 8, 9 One Diag interface, BITS Clock

Supported in TJ1500-R2

XCC03 8, 9 One Diag interface, BITS Clock


PSM 1, 15 Two 3-pin power D-type connectors


PSM2 1, 15 Two 3-pin power D-type connectors


MFC1 16 One Order wire interface

10/100 Mbps NMS Ethernet interface

One Serial interface for craft applications

One Serial interface for Modem

One Alarm-in interface

One Alarm-out interface

TE33 2,3,4,5,6,

11,12,13,14

3 E3/DS3 interfaces

TET63 2,3,4,5,6, 63 E1 interfaces E1 Input: Metral Connectors


11,12,13,14

ELAN01 2,3,4,5,6,

11,12,13,14

8 FE electrical interfaces

2 GE interfaces

Not supported in slot 12 in TJ1500-R2.

They can be used in slots 2, 3, 4, 5, 6, 11, 12, 13 and 14 in TJ1500-R3.

TR04 2,3,4,5,6,

11,12,13,14

8 FE electrical interfaces

2 GE interfaces



TR03 2,3,4,5,6,

11,12,13,14

Two GE interfaces Not supported in slot 12 in TJ1500-R2.


TP01 2,3,4,5,6,

11,12,13,14

Eight FE electrical interfaces

A012 2,3,4,5,6,

11,12,13,14

Two STM-1 interfaces Not supported in slot 12 in TJ1500-R2.


A018 2,3,4,5,6,

11,12,13,14

Eight STM-1 interface

Or

Two STM-4 interfaces



The STM-1 ports are field configurable to work as electrical or optical ports.

A161 7, 10 One STM-16 interface

A162 7, 10 Two STM-16 interfaces

Supported in TJ1500-R3.


A164T 5, 12 One STM-16 interface

Or

Four STM-4 interfaces

Field configurable as either 1xSTM-16 or 4xSTM-4.

In TJ1500-R2, A164T card is supported only in slot 12. In TJ1500-R3 A164T card is supported slot 5 & slot 12.

FAN 17 -

XCC02 The XCC02 is the cross-connect controller card that provides 12.5 G cross-connect capacity. The card has the processor to perform functions such as MSP, IBC routing, inter-card communication, node management and alarm processing by the TJ1500-R2 network element.

The front panel has a Diag interface for NMS connection and BITS clock interface for clock input. Status and Active LEDs are also provided to indicate the power on and working status of the card. Apart from the LEDs, a push button switch is provided for hot swap capability.

The timing synchronizer in the XCC02 provides Stratum-3, 4E, and 4 level clocks to all the line cards in the chassis. In the holdover mode, when all input references fail, the timing synchronizer provides the primary and secondary clocks for synchronization.

XCC03 The XCC03 is the cross-connect controller card that provides 20 G cross-connect capacity. The card has the processor to perform functions such as MSP, IBC routing, inter-card communication, node management and alarm processing by the TJ1500-R3 network element.

The front panel has a Diag interface for NMS connection and BITS clock interface for clock input. Status and Active LEDs are also provided to indicate the power on and working status of the card. Apart from the LEDs, a push button switch is provided for hot swap capability.

The timing synchronizer in the XCC03 provides Stratum-3, 4E, and 4 level clocks to all the line cards in the chassis. In the holdover mode, when all input references fail, the timing synchronizer provides the primary and secondary clocks for synchronization.

TE33 card (3xE3/DS3) The TE33 card is used as a tributary card in the TJ1500 system and supports three ports for E3/DS3 channels in a single card.


The face plate of the TE33 card has six BNC interfaces for the 3 E3/DS3 Channels ports. Each of the three ports on the card is independently software configurable to support E3/DS3 rates. Besides the ports, the faceplate also has Status and Active LEDs to indicate the power on and working status of the TE33 card.

The card supports live insertion and hot-swap. The TE33 card receives approximately 12 V DC from backplane. The power dissipation of the TE33 card is approximately 10 W.

TET63 (63xE1) TET63 is a 63 E1 tributary interface card. This card provides line interfaces to 63 E1 channels respectively in both add and drop directions.

TET63 card has TLC, which have six 48-pin Metral connectors at the front, grouped into three sets (each with two connectors) each providing an interface for 21 E1 channels. Status and Active LEDs are provided to indicate the power on and working status of the TET63 card. TET63 card can be configured in UI to work from 120 Ohms as well as 75 Ohms E1 input.

The card receives an input supply of 12 V isolated DC. The typical power consumption of TET63 card is 14.6 W.

A012 (2xSTM-1) The A012 card provides two STM-1 interfaces to the TJ1500 system. The optical ports have provision of small form-factor optics and are thus field configurable for the type of interface required. Status and Active LEDs are provided to indicate the power on and working status of the card.

The card receives an input supply of 12 V isolated DC. The typical power consumption of A012 card is 11 W.

A018 (8xSTM-1/2xSTM-4) The A018 Line card/Aggregate card is a SDH optical line interface card for TJ1500 that can operate as STM-1o/e speed using different assembly. In STM-4 mode, SFPs of STM-4 capacity is plugged in at ports 1 and 5.

Status and Active LEDs are provided to indicate the power on and working status of the card. The card receives an input supply of 12 V isolated DC. The typical power consumption of A018 card is 34 W.

A161 (1xSTM-16) The A161 Line card/Aggregate card is a SDH optical line interface card for TJ1500 that can operate at STM-16 speed.

Status and Active LEDs are provided to indicate the power on and working status of the card. Two LEDs for each optical port is used for transmit and receive laser status. The card receives an input supply of 12 V isolated DC. The typical power consumption of A161 card is 22 W.


A162 (2xSTM-16) The A162 Line card/Aggregate card is a SDH optical line interface card for TJ1500-R3 that can operate at STM-16 speed.

Status and Active LEDs are provided to indicate the power on and working status of the card. Two LEDs for each optical port is used for transmitter and receiver laser status. This card supports live insertion and hot-swap capability.

The card receives an input supply of 12 V isolated DC from backplane. The typical power consumption of A162 card is 22 W.

A164T (1xSTM-16/4xSTM-4) The A164T line card/aggregate card is an SDH optical line interface base card for TJ1500 that can operate at STM-4/16 speed using different assemblies.

A164T is field configurable to 4xSTM-4 or 1xSTM-16. A164T has either port 1 for 1xSTM-16 configuration or port 2-4 for 4xSTM-4 configuration.

Status and Active LEDs are provided to indicate the power on and working status of the card. Two LEDs for each optical port is used for transmitter and receiver laser status.

The card receives an input supply of 12 V isolated DC from backplane. The typical power consumption of A164T card is 34 W.

TP (8xFE) 01The Ethernet tributary card, TP01 provides line interface to eight, 10/100 Mbps Tx ports. The Fast Ethernet interface is supported via RJ-45 connectors.

TP01 card maps and de-maps the Ethernet data into the virtual containers of different granularity (VC-11/VC-12/VC-3/VC-4) of the SDH frame. The VC in which the data is mapped/de-mapped is programmable on a per port basis, through software.

Status and Active LEDs are provided to indicate the power on and working status of the TP01 card. Two LEDs for each optical port is used for transmitter and receiver laser status. The card receives an input supply of 12 V isolated DC from backplane. The typical power consumption of TP01 card is 8 W.

TR03 (2xGE) TR03 is a tributary interface card, which provides line interface to Gigabit Ethernet (GE) and supports GE through two SFP interfaces. TR03 card maps and de-maps the Ethernet ports into SDH. Ethernet data from GE ports are mapped onto GFP (GFP-F).

Two-port 1000 Mbps optical interfaces are provided through SFP modules.

Status and Active LEDs are provided to indicate the power on and working status of the TR03 card. Two LEDs for each optical port is used for transmitter and


receiver laser status. The card receives an input supply of 12 V isolated DC from backplane. The typical power consumption of TR03 card is 15 W.

TR04 (2xGE/8xFE) TR04 is a tributary interface card, which provides line interface to Gigabit Ethernet (GE) and can support GE in two SFP interfaces. It also provides line interfaces to eight 10/100 Mbps Rx and Tx port. TR04 card maps and de-maps the Ethernet ports onto SDH.

Two-port 1000 Mbps optical interfaces are provided through SFP modules. Eight 10/100 Mbps fast Ethernet interface is supported via RJ-45 connectors.

Status and Active LEDs are provided to indicate the power on and working status of the TR04 card. Two LEDs for each optical port is used for transmitter and receiver laser status. The card receives an input supply of 12 V isolated DC from backplane. The typical power consumption of TR04 card is 15 W.

ELAN01 (8xFE/2xGE) ELAN01 is a tributary interface card, which provides line interface to 8x10/100 Mbps (FE) and 2x1000 Mbps (GE) Ethernet ports. In addition to supporting EOS applications, ELAN01 is capable of switching at L2 level and doing traffic classification from L2 to L7 level.

Status and Active LEDs indicate the power on and working status of the ELAN01 card. Two LEDs for each optical port is used for transmit and receive laser status.

ELAN01 supports live insertion and hot swap capability. The ELAN01 card receives 12 V DC from the backplane. The typical power consumption of ELAN01 card is 35 W.

Multi-Function Card (MFC1) The MFC1 card has interfaces for all the management functions. It is fixed at the top of the TJ1500 chassis and connected to the backplane. It has the following management interfaces along with the visual alarm indicators:

OrderWire interface

10/100 Mbps NMS Ethernet interface

Two serial interfaces for craft/modem applications

Alarm input and Alarm output interfaces

Alarm and power indication LEDs

The MFC1 card receives 12 V DC from the backplane. The typical power consumption of MFC1 card is 8 W.


Power Supply Module (PSM) The Power Supply Module (PSM) is part of the chassis of the TJ1500-R2. The units provide a filtered input voltage of -40 V to -60 V and the unit provides a 12 V supply to all the cards, MFC1 card and the Fan tray units. The PSM provides total output power of 280 W. The two LEDs—STATUS and ACTIVE—provide a visual indication of the input voltage, the output voltage and the state of the card.

There are two PSMs in the TJ1500-R2 network element to provide input source redundancy. The cards are provided with a mechanical circuit breaker to cut off supply in the event the card draws more current than the stated limit. An electrical circuit breaker provides protection from over voltages and under voltage at the input.

An EMI filter is used to restrict conducted emissions. The filters have transient voltage suppressors to prevent voltage surges affecting the system. The cards have reverse polarity protection to protect the system from damage in the event the input is given with reversed polarity. The 12 V supply is generated through an isolated DC-DC converter.

Power Supply Module2 (PSM2) The Power Supply Module2 (PSM2) is part of the chassis of the TJ1500-R3. The units provide a filtered input voltage of -40 V to -60 V and the unit provides a 12 V supply to all the cards, MFC1 card and the Fan tray units. The PSM2 provides total output power of 500 W. The two LEDs—STATUS and ACTIVE—provide a visual indication of the input voltage, the output voltage and the state of the card.

There are two PSM2s in the TJ1500-R3 network element to provide input source redundancy. The cards are provided with a mechanical circuit breaker to cut off supply in the event the card draws more current than the stated limit. An electrical circuit breaker provides protection from over voltages and under voltage at the input.

An EMI filter is used to restrict conducted emissions. The filters have transient voltage suppressors to prevent voltage surges affecting the system. The cards have reverse polarity protection to protect the system from damage in the event the input is given with reversed polarity. The 12 V supply is generated through an isolated DC-DC converter.


Chapter

4 System Functional Description Configurations Terminal Multiplexer (TMUX) The TMUX configuration is achieved with the base chassis (Cross-connect card, Power supply unit and Fan) and a suitable combination of E1/DS1/E3/DS3/STM-1 and Ethernet tributary cards.

Add-Drop Multiplexer (ADM/MADM) The ADM configuration is achieved with the base chassis (Cross-connect card, Power supply unit and Fan) and a suitable combination of E1/DS1/E3/DS3/STM-1o/STM-1e and Ethernet tributary cards. As an ADM/MADM, the TJ1500 is capable of adding/dropping upto one STM-16 worth of traffic. The ADM/MADM configuration is used whenever the TJ1500 is a part of a ring or linear chain.

Protection Equipment Protection Switching Equipment protection switching accommodates various hardware failures while the transport facility is still functional. In an event of hardware failure, the hardware is substituted without affecting the traffic.

Cross-connect Card Redundancy The TJ1500 facilitates cross-connect redundancy by having cross-connect cards in Slots 4 and 5. Software on each cross-connect card decides which cross-connect card is the active controller. The active cross-connect card takes control of all the processor bus signals on the backplane. The processor bus is shared across all the tributary cards.

All the traffic related devices on each cross-connect card is always under the control of the active cross-connect card.

Power Supply Redundancy The PSM/PSM2 has two power supplies to facilitate power supply redundancy. The output of both the power supplies are shorted together on the backplane and then in turn given to all the cards.


1+1 MSP 1+1 MSP is available only in the TMUX configuration. Protection switching is software controlled and the cross-connect card provides all the alarms for the switching to be initiated. Both revertive and non-revertive modes of MSP are supported and the Wait-to-Restore (WTR) time is configurable.

Path level protection is not available in the 1+1 MSP scenario.

MS-SPRing Protection The TJ1500 supports two-fiber MS-SPRing where two fibers share service and protection equally.

Under normal working conditions, the protect path carries extra traffic. In case of any fault in the work path, the extra traffic is interrupted and the normal traffic is switched in the protect path.

TJ1500 network element in a MS-SPRing can terminate traffic it receives from either side of the ring and is suited for distributed node-to-node traffic applications, such as interoffice networks and access networks.

Sub-Network Connection Protection (SNCP) Sub Network Protection Path is a path protection switching and is supported for the VC-4, VC-3 and the VC-12 container levels. The receiving network element monitors the virtual containers (VCs) from different paths. The VC with better performance is selected for de-mapping. The SNCP protection is initiated in the occurrence of Signal Fail (SF) or Signal Degradation (SD) condition.

The TJ1500 supports both Sub-network Connection Protection with Inherent Monitoring (SNC/I) and Sub-network Connection Protection with non-Intrusive Monitoring. (SNC/N).

In SNC/I, the network element uses the inherent information in the network such as Connection status and performance data to monitor the connection. Faults in the service layer are detected using the SNC/I mode. In SNC/N mode, the diagnostic data in the received traffic is used to monitor the connection. Faults in connectivity can be detected using the SNC/N mode.

Tributary Protection Switching Tributary protection switching is available in the ADM configuration. This is a VC-12/VC-3 path level protection scheme that uses the broadcast feature of the cross-connect fabric. Protection switching is software controlled and the XCC provides all the alarms for the switching to be initiated.

Timing Reference Switching A timing reference for the equipment is selected from a pool of available references. When a failure occurs on the selected reference (Alarms, Frequency Out-of-Range), the timing reference is switched to the next available reference after going to holdover momentarily. Timing reference switching is software controlled and the cross-connect card provides all the alarms for the switching to be initiated.


LCAS Protection Link Capacity Adjustment Scheme or LCAS is a method to dynamically increase or decrease the bandwidth of virtual concatenated containers. The TJ1500 supports LCAS as per the G.7042 specifications.

LCAS is implemented using the overhead byte reserved for transmitting control information in a VCG to dynamically adjust the number of VCs in the VCG as per the bandwidth availability. Thus, the TJ1500 can dynamically adjust the bandwidth according to the service bandwidth availability in a hitless manner. LCAS in the TJ1500 network element also provides a protection mechanism for Ethernet circuits without physically consuming the bandwidth by temporarily removing failed members from the VCG. A failed member will automatically cause a decrease of the bandwidth and after repair the bandwidth will increase again without any hits. Together with diverse routing, LCAS protection provides uninterrupted data traffic without requiring excess protection bandwidth allocation The TJ1500 recognizes the LCAS capability of the link partners when the network elements in a link use Virtual Concatenation (VCAT) for connection. The TJ1500 sends LCAS control-messages on a VC bundle to the link partner. If the transmitting network element does not receive any LCAS control message from the partner, it assumes that LCAS is disabled in the link partner.

Synchronization and Timing The TJ1500 uses synchronization sources as per ITU-T G.703 standard. The TJ1500 uses two clock sources for synchronization apart from the internal Stratum-3 clock source (Oscillator)—Ports and BITS.

Ports provide reference clock at E1/E3/STM-1/4/16 rates. BITS-1 is an external source which provides 2 MHz reference clock. BITS-2 is also an external source and provides 2 Mbps reference clock.

The priority of the clock source is user configurable.

Network Management and Management Connectivity The network of the TJ1500 can be managed using the Tejas Network Management System (TejNMS). The TejNMS performs centralized operation, administration, and management (OAM) of the network comprising the TJ1500. The protocols of the TejNMS comply with the ITU-T and ISO standards.

The management connectivity is facilitated using the RJ45 connector provided on the MFC1 card.


Power and Environment Monitoring The TJ1500 has an Alarm input interface on the MFC card to detect unfavorable environment conditions such as Power or air conditioning failure, equipment room door open etc. The alarms are classified as critical, major, minor, deferred alarms or warning depending on severity.

TJ1500 supports up to seven environmental alarms. The alarms can be configured and are displayed on the craft terminal user interface. Performance Monitoring The performance monitoring is based as per ITU-T G.826/G.828 standards. The performance monitoring at each level in the maintenance hierarchy is based on Bit-Interleaved-Parity (BIP) checks calculated on frame by frame basis for SDH mode. The BIP checks are inserted in the Overheads associated with the Section and Path. Errors detected in the Higher Order (HO) path and Lower Order (LO) Path BIP cause the respective Remote Error Indication (REI) signals to be sent upstream. The thresholds for the performance monitoring parameters are user configurable using the software.

The performance parameters are calculated for current interval. 15-minute intervals and for the previous day.


Chapter

5 Applications

This chapter explains the networking applications of the TJ1500.

Networking Applications The TJ1500 can be used in the following network topologies:

STM-16/4 Rings The TJ1500 can be used in an end-to-end network configuration from the customer premises to the optical core. STM-16/4 network is built using TJ1500 providing low drop requirements at a couple of locations.

Figure 3: STM-16/4 Ring Configuration


STM-1/4/16 Subtended Rings The STM-1/4/16 tributary modules of TJ1500 can act as SDH network element completing the Subtended Rings, or Line Terminating Equipment (LTE) performing Line, Span or Ring Switching as well as DCC pass. The modules are able to insert/drop traffic through the switching matrix to any of the other tributary/aggregate cards. It is possible to connect a mix of STM-1/4/16 rings through the TJ1500 network element. Figure 4 shows the pictorial representation of the subtended ring structure using TJ1500.

Figure 4: STM-16/4/1 Subtended Ring Structure

Ethernet Network Application The TJ1500 can be used in the following Ethernet applications:

Ethernet Private Line application Ethernet Private Line (EPL) puts two service access points as a basic unit to realize the point-to-point transparent transmission of Ethernet MAC frame. Applying EPL, different customers needn’t share SDH bandwidth. Therefore, EPL can strictly ensure bandwidth and user isolation without any need to adopt a Quality of Service (QoS) mechanism, security mechanism or MAC address learning. The Figure 5 shows the EPL implementation using TJ1500.


Figure 5: EPL implementation

In Figure 5, User-A1 at Station A connects to User-B1 at Station B and User-C1 at Station C using LAN1 and LAN 2 respectively. Similarly Users A2 and User A3 at Station A have separate LAN network to connect to Users C2 and D1 respectively. This way each user has a separate line dedicated for communication with different users.


Ethernet Virtual Private Line application In Ethernet Virtual Private Line (EVPL) application, different users share the same SDH bandwidth for communication. A VLAN ID or other mechanism to distinguish data from different users is provided. If different users require different service quality, the corresponding QoS mechanism needs to be provided. Hence here the available bandwidth is used efficiently. Figure 6 shows the implementation of the EVPL using TJ1500.

Figure 6: EVPL Implementation

In Figure 7, VLAN Trunk 2 is provisioned between Users A1, A2 at Station A and between Users C1, C2 at Station C. Similarly VLAN Trunk 3 is provisioned between Users A2, A3 and Users D1 and D2 at Station D. A separate VLAN ID is provided at the ingress of ports assigned to the User A1, A2 and A3. When a packet arrives from User A1, based on the VLAN ID of the port from where the packet is received, the packet is broadcast to VLAN Trunks 2 and 3. Based on the destination address in the packet, the packet reaches its destination that is either User C2 or User D1.


Ethernet Private Local Area Netwo k application rEPLAN (Ethernet Private Local Area Network) has at least two service access points. Different users need not share the same SDH bandwidth, so EPLAN possesses strict bandwidth guarantee and user isolation without a need to adopt any QoS mechanism and security mechanism. Because it has multi-node, it needs to implement data forwarding and MAC address learning. The Figure 7 shows implementation of EPLAN using TJ1500.

Figure 7: EPLAN Implementation

In Figure 7, a separate LAN network is provisioned for each individual User (A1, A2 and A3) at Station A. The User A1 communicates to User C1 at Station C and User B1 at Station B through LAN 1. Similarly, User A2 communicates with users C2 at Station C and D1 at Station D through LAN 2. Thus each user gets a separate bandwidth for communication.

Ethernet Virtual Private Local A ea Network application rIn Ethernet Virtual Private Local Area Network (EVPLAN) application, different users share the SDH bandwidth. A mechanism such as VLAN tag distinguishes data from different users. QoS mechanism ensures different service quality for different users.

Figure 8 shows the implementation of the EVPLAN using the TJ1500 network element.


Figure 8: EVPLAN Implementation

In Figure 8, the users at Station A communicate with all the users in Station B, C and D through the same VLAN trunk. The packet is routed to the correct destination based on the VLAN tag and the destination address. In case of conflict for bandwidth, the packets are routed based on QoS.


Chapter

6 Tejas Network Element Software

The TJ1500 network element is initialized to operation using the Tejas Network Element Software (TejNES). The TejNES presents the current situation of the network element. The TejNES is a standalone application that runs on a Windows or Linux platform. The system running the TejNES is connected to the network element using the craft interface.

The TejNES is a standalone Web User Interface (WUI) application and the user has to log on to the application for it to function. The TejNES can support up to eight simultaneous logins to the network element. The TejNES application can be accessed using a LAN cable.

NES Functions The TJ1500 node is managed through the embedded NES (Network Element Software). The main capabilities of TejNES are as follows:

Network Element Access: The embedded SNMP agent in the TejNES communicates with the network element based on the IP address of the network element. In case the network element does not have an IP address, the IP address can be assigned using the serial port provided on the MFC card of the network element.

Multi-user login - supports up to ten simultaneous login sessions on a single network element.

Inventory - facilitates viewing the details and status of the inventory present on the network element.

Port configuration - allows the configuration of STM, PDH, and Ethernet and VCG ports.

Cross-connect configuration - facilitates the configuration of add, drop, add-drop and pass-through cross-connects.

Auto-discovery - automatically discovers and stores the IP addresses of the neighboring network element.

DCN configuration - allows the configuration of Embedded Communication Channel (ECC) and management channel.


Protection configuration - facilitates configuring MSP, MS-SP and SNCP protection.

Alarm notification - displays all the alarms raised on the network element in order of severity. The TejNES also presents the history of all the events that occurred and stored on the network element.

Alarm filtering - allows setting filters for alarms from specified entities.

Performance data - displays the performance data for current interval, 15-minute interval and the performance data of previous day.

Configuration backup/restore - allows the current network element configuration to be backed-up on a remote or local system. Also allows a backed up configuration and factory default settings to be restored on the network element.

Software upgrade/download - allows upgrading/downgrading of the NES.

Loopback testing - allows creation of terminal and facility loopbacks on SDH, PDH, Ethernet and VCG interfaces for testing purposes.

Security - restricts access based on user profiles.

Layer 2 feature configurations - facilitates configuring bridges (MSTP, CSTP and RSTP), VLAN, LAG and Diffserv and QoS policies.


Chapter

7 Network Management System

Tejas Network Management System (TejNMS) provides integrated management of network elements across an intelligent optical network. The TejNMS collects and represents data from geographically dispersed network elements on to a console in a centralized Network Operations Center (NOC). Service providers with NOC operations can use the network-wide view presented by TejNMS to configure and set-up Tejas network elements with ease.

The NMS GUI forms a single Network Operation Center (NOC). The service providers with NOC operations can use state-of-art graphical interface to configure and set up the Tejas network elements. NMS design is based on the Open Systems Interconnect (OSI), “FCAPS” model of Management Functional Areas (MFAs).

Characteristics of NMS NMS is based on Client-Server model, enabling centralized monitoring and control of the Tejas optical products.

The NMS server monitors the managed Element Management System (EMS). It monitors the EMS level alarms and the node level alarms of the nodes managed by the EMS.

The NMS monitors and manages the EMS. The features of the NMS are broadly classified into the following three main categories:

Features based on TMN (FCAPS) functionality


Generic features

Advanced features

TMN (FCAPS) Functionality The functionalities of the FCAPS are:

F- Fault Management: helps to identify, locate and repair problems. C- Configuration Management: provides the service and resource

provisioning. A- Accounting Management: enables the collection of data to support

report generation and asset management. P- Performance Management: enables gathering of statistics for

planning, troubleshooting and providing customer reports. S- Security Management: enables the control of access to network

resources to maintain reliability. Generic Features

Scalable architecture Database backup Modular User Interface

Advanced F atu es e r

Web based Access Trend Analysis

Network Management Functions Performance Management Performance management reports and evaluates the transmission performance parameters of the Tejas network elements. Its main responsibility is to collect performance data of the network element in the communication network for monitoring and revising the status and performance of the network or the network element. Performance data is visible only for the circuits displayed in the TejNMS.

The TejNMS allows the configuring the type of performance data to be collected from each network element and stores the collected data for at least 30 days.

Fault Management Fault management monitors all the TJ1500 network elements and its network path in real-time and displays the count of each type of alarm raised (critical, major, minor, deferred and warning) on the Graphical User Interface (GUI). An alarm counter/banner displays the alarm count. The alarm counter/banner refreshes automatically and is color coded based on severity of the alarm. The color code is given below:

Red – Critical, Major


Orange – Minor

Yellow - Deferred, Warning

The TejNMS displays alarms raised on each individual network element and also the total alarms raised on the entire network in real-time. The probable cause of the alarms is also displayed for each alarm. Alarms for upto 30 days can be stored and viewed. The alarms can also be exported which helps the alarms to be stored for a longer duration. The TejNMS also recovers all the active alarms on re-establishment of connection when there is any communication loss with the network elements.

The Network operators can add remarks and acknowledge the alarms. The TejNMS also indicates if the regional NOC (EMS) has acknowledged the alarm. Besides, they can also sort the alarms based on user-defined criteria and generate reports on alarms for the entire network, cards, circuits, and so on.

Configuration Management Configuration management in TejNMS allows a user to manage the changes made to the configuration of the network devices. Managing configuration changes includes collection, backup, archive, viewing and comparison. The user can configure the network element and roll back to previous configuration in case of any trouble.

Besides managing configuration, the configuration management also collects information on the device hardware and software inventory.

Security Management Security management ensures safety against unauthorized persons from accessing network resource and equipment illegally. Security management relates to all management functions namely, management of user grade and authority, access control, data security and operation log management.

The TejNMS defines multiple users with different privileges for accessing the network. The following are the user privileges:

USER (read-only, only viewing)

OPERATOR (all day-to-day provisioning, fault monitoring, configuration and performance monitoring)

OPERTOR2 (configuring network element name, router ID, Ethernet IP and all other day-to-day provisioning, fault monitoring, configuration and performance monitoring)

ADMIN (user account management, administration of sub-networks/topology)

The security management provides the password administration and audit trail features.


In the password administration feature, the administrator/user can set the user login and password. Only the ADMIN account(s) can know the EMS passwords. For OPERATOR or OPERATOR2 privileges, the user will not be prompted for the EMS user/password information. These user accounts are different for each EMS. The ADMIN configures these accounts once while administering the EMS/Sub-Network, so that each operation does not request for the authentication again and again.

The Audit Trail feature helps to maintain a detailed audit trail of all the operations performed along with the user name, operation status (success/failure) and time.

Management Connectivity The TJ1500 has multiple options for management connectivity. Some of the options are Local craft terminal (LAN Interface), remote management via in-band communication or dial-up. All the physical management connectivity is terminated on MFC1 card, which has necessary circuit for the physical interface.

Networking based on LAN TJ1500 is locally managed using a 10/100BaseT Ethernet interface located on the front panel. It has a RJ-45 connector and implements a NIC port configuration. Auto-negotiation is enabled.

The local craft station is a PC with a standard web browser. The TJ1500 implements the HTTP protocol to communicate with the browser. All node configurations and maintenance operations can be performed using a simple graphical user interface.


Chapter

8 Technical Specifications

Interface Specification Interface Types

Interface Type Details

SDH interface STM-16/4/1 interfaces

PDH interface 63 E1, 3 E3/DS3

Ethernet interface 10/100 Base-Tx, 100 Base-Fx, 1000 BaseSX/LX/LH

Clock interface BITS-1 (2 MHz signal) BITS-2 (2 Mbps signal)

Alarm interface Alarm In and Alarm Out interfaces

Management interface

SNMP interface (for NMS)

RS-232 port (craft interface)

In-band channel control

10/100 Base T (RJ-45) Management interface

OrderWire interface Two-wire analog telephone interface for Engineering OrderWire (E1 or E2 bytes access)


STM-16 Interface Specification

Parameter Unit Values

Digital signal

Nominal bit rate Mbps

Optical Interface L-16.1 S-16.1

Operating wavelength Nm 1280-1335 1260-1360

Source type MLM SLM SLM

Spectral characteristics:

-Maximum RMS width (s)

-Maximum –20dB width

Nm

Nm

-

1

-

1

Mean launched power: Maximum

Minimum

dBm

+3

-2

0

-5

Minimum extinction ratio dB 8.2 8.2

Minimum sensitivity dBm -27 -18

Minimum overload dBm -9 0


STM-4 Interface Specification (If Applicable)


Digital signal

Nominal bit rate Mbps

Optical Interface L 4.1 S 4.1

Operating wavelength Nm 1300-1325/ 1296-1330 1280-1335

1293-1334/1274-1356

Source type MLM MLM SLM MLM




Nm

Nm

2.0/1.7

-

-

1

4/2.5

-


Minimum

dBm

+2

-3

+2

-3

-8

-15

Minimum extinction ratio dB 10 10 8.2

Minimum sensitivity dBm -28 -28 -28

Minimum overload dBm -8 -8 -8


STM-1 Interface Specification (If Applicable)


Digital signal

Nominal bit rate

Mbps

Optical Interface L 1.1 S1.1

Operating wavelength Nm 1263-1360 1261-1360

Source type MLM MLM SLM MLM




Nm

Nm

3

-

-

1

7.7

-


Minimum

dBm

0

-5

0

-5

-8

-15

Minimum extinction ratio dB 10 10 8.2

Minimum sensitivity dBm -34 -34 -28

Minimum overload dBm -10 -10 -8


E1 Interface Specification

Parameter Value

Pulse Shape (nominally rectangle) All marks of a valid signal must conform to the mask irrespective of the sign. The value V corresponds to the nominal peak value

Pair(s) in each direction One coaxial/Symmetrical pair

Test load impedance 75 Ohms resistive for coaxial pair

120 Ohms resistive for symmetrical pair

Nominal peak voltage of a mark (pulse)

2.37 V for coaxial pair

3 V for symmetrical pair

Peak voltage of a space (no pulse) 0 +/- 0.237 V for coaxial pair

0+/-3 V for symmetrical pair

Nominal pulse width 244 ns

Ratio of the amplitudes of positive and negative pulses at the centre of the pulse interval

0.95 to 1.05

Ratio of the widths of positive and negative pulses at the nominal half amplitude

0.95 to 1.05

Maximum peak-to-peak jitter at an output port

B1 unit interval peak-to-peak – 1.5



E3/DS3 Interface Specification Parameter Value

Pulse Shape (nominally rectangle) All marks of a valid signal must conform with the mask, irrespective of the sign

Pair(s) in each direction One coaxial pair

Test load impedance 75 ohms resistive

Nominal peak voltage of a mark (pulse) 1.0 V

Peak voltage of a space (no pulse) 0 V+/- 0.1 V

Nominal pulse width 14.55 ns

Ratio of the amplitudes of positive and negative pulses at the centre of the pulse interval

0.95 to 1.05

Ratio of the widths of positive and negative pulses at the nominal half amplitude

0.95 to 1.05

Maximum peak-to-peak jitter at an output port



Ethernet Interface Specification Parameter 1000BaseSX 1000BaseLX 1000BaseLH

Link power budget (dB)

7.5 (multi-mode) 8.0 10.5

Operating distance (nominal) (m)

550 5000 10,000

Channel insertion loss (dB)

3.56 4.57 7.8

Link power penalties (dB)

3.57 3.27 2.5

Unallocated margin in link power budget (dB)

0.37 0.16 0.2


Equipment Performance OrderWire Telephone Function This is an operations communication channel that directly supports a two-wire analog telephony. It has the full battery, over voltage, ringing, supervision, codec, hybrid and test (BORSCHT) functions.

Voice and signaling traffic is carried over E1 or E2 bytes of the SDH overhead.

Two-wire analog interface is handled by hardware using a ringing SLIC and codec. The line impedance can be set according to local conventions from the user interface.

Network Management Function The Network Management System interface (NMS interface) provides a CSMA/CD based LAN transceiver for an Ethernet link through an RJ-45 connector on the MFC1 card.

EMI Safety Specification The equipment is compliant to EMI Specifications EN55022 Class A, EN 300 386 and safety specification CSA 60950, CSA 60825-1.

Power Supply and Power Consumption The Power consumption of a fully loaded configuration is 600 W. The nominal operating voltage is -48 V DC nominal. The TJ1500 can operate at a voltage range of -40 V to -60 V DC variations.

Card Max. Power Consumption

MFC1 8 W

XCC02 30 W

XCC03 50 W

TET63 15 W

TE33 10 W

A012 11 W

A018 34 W

A161 22 W

A162 22 W


A164T 34 W

TP01 8 W

TR03 15 W

TR04 15 W

ELAN01 35 W

Mechanical Dimension The TJ1500 network element is designed for 19" ETSI compliant rack.

The chassis measures 8 U. The chassis dimensions are 354 mm x 482 mm x 300mm (H x W x D) respectively.

Environmental Requirements Working Environment

Ground bearing: ≥600 kg/m2.

No corrosive and solvent gas, and no dust in the atmosphere; no strong Electromagnetic field nearby.

Power supply: can provide steady voltage.

Earth resistance: <5Ω.

Operating Temperature: 10° to 75° C

Relative Humidity: 10 to 90 %, non-condensing

Packaging and Transportation The network element is covered with plastic film. Its top, middle and bottom parts are wrapped in plastic foam to prevent shaking. A wooden case is used for its outside package.

The network element can be transported by long-distance bus, train, ship and plane. Temperature should be maintained at -25° to 60° C while transportation. Collision, tumble, drench and isolation are forbidden.



Appendix

A System Stability Specifications

Table gives the FITS and MTBF data for the cards present in the TJ1500 network element.

Card FITS MTBF (in Years)

Power Supply Module (PSM) 835.5 136.63

Multi-Function Card (MFC1) 2498.6 45.69

Cross-connect Card (XCC02) 3784.95 30.16

Cross-connect Card (XCC03) 2588 44.11

TET63 2400 47.56

TE33 1764.45 64.70

A012 3748.05 30.46

A018 6506.1 17.55

A161 2987.25 38.21

A162 3623.55 31.50

A164T 1969.45 57.90

TP01 1759.65 64.87

TR03 1725.4 66.16

TR04 4285.9 26.64

ELAN01 4996.3 22.85

Fan Tray Unit (FT16S) 227.75 501.23


Acronyms Acronym Expansion

BITS Building Integrated Timing Systems

BNC Bayonet Neill Concelman connector

CSTP Common Spanning Tree Protocol

DCC Data Communication Channel

DDF Digital Distribution Frame

Diffserv Differentiated Services

EMS Element Management System

ENUT Enhanced Non Pre-Emptible Unprotected Traffic

EOW Engineering Order Wire

EPL Ethernet Private Line

EPLAN Ethernet Private Local Area Network

EVPL Ethernet Virtual Private Line

EVPLAN Ethernet Virtual Private Local Area Network

IBC In-Band Communication

ITU-T

International Telecommunication Union-Telecommunication Standardization Sector

LAG Link Aggregation

LCAS Link Capacity Adjustment Scheme

LED Light Emitting Diode

LTE Line Terminating Equipment

MFC Multi-Function Card

MSP Multiplex Section Protection

MS-SPRing Multiplex Section-Shared Protection

MSTP Multiple Spanning Tree Protocol

Appendix

B


NMS Network Management System

NOC Network Operations Center

PDH Plesiochronous Digital Hierarchy

PDP Power Distribution Panel

QoS Quality of Service

RSTP Rapid Spanning Tree Protocol

SD Signal Deterioration

SF Signal Failure

SDH Synchronous Digital Hierarchy

SNC-I Sub-Network Connection Protection – Inherent Monitoring

SNC-N Sub-Network Connection Protection – Non-Intrusive Monitoring

SNCP Sub-Network Connection Protection

TDM Time Division Multiplexing

TMUX Terminal Multiplexer

UDC User Data Channel

VCAT Virtual Concatenation

VCG Virtual Concatenation Group

VLAN Virtual Local Area Network

VLAN ID Virtual Local Area Network Identifier

WTR Wait to Restore Time



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Head Office # 58, 1st Main Road J.P. Nagar, 3rd Phase Bangalore 560 078 India Tel: +91-80-4179 4600/700/800 Fax: +91-80-4121 4481 Mail: [email protected]

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Documents

TJ1500-R3 System Guide