05_7705 Service Aggregation Router (Sar)_mod5 Sar 8 System Overview

8/15/2019 05_7705 Service Aggregation Router (Sar)_mod5 Sar 8 System Overview

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This section describes the 7705 SAR-8 system.

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COPYRIGHT © 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ALCATEL-LUCENT — INTERNAL PROPRIETARY — USE PURSUANT TO COMPANY INSTRUCTION


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The SAR-8 chassis supports eight horizontal slots for one or two CSMv1 or CSMv2 cards and 6interface adapter cards, as well as one vertical slot for the fan module.

The SAR-8 v1 chassis supports the 6 interface adapter card slots at 1 gigabit per second fullduplex.

- - . ,gigabits per second full-duplex.

The connectors for the DC power feeds are located to the right of the Fan module and arefactory-installed.

The CSM, adapter cards, and Fan module are all customer-installed.

All physical connections are made at the front of the chassis, including the chassis ground point.

There are no back panel connections.

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The 7705 SAR-8 v2 Chassis accepts redundant DC-power feeds, up to 2 CSMv1 cards or 2 CSMv2

cards, and up to 6 interface adapter cards.

The SAR-8 chassis v2 is capable of supporting an increased bandwidth per interface adaptercard slot.

.

2.5 Gb/s FD with CSMv2 or 1 Gb/s with CSMv1.

The SAR-8 CSMv2 supports both –48 volts DC and +24 volts DC.

The SAR-8 supports combined SyncE and IEEE 1588 for frequency and time alignment.

IEEE 1588 support is for up to 6 ordinary slave clocks, ordinary master clocks, or boundary

clocks.

The 8-port Ethernet Adapter card, version 2, 8-port Gigabit Ethernet Adapter card, Packet

crowave ap er car , -por g erne ap er car , an e -por g -por

10GigE X-Adapter card each support one PTP clock.

A conformal coating variant is available for the SAR-8 v2 shelf.

Conformal coating provides extra protection to sensitive electronic components when the 7705

SAR is deployed in harsh environments.

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Many existing and new hardware systems, cards, and modules are now available in conformalcoated variants. Software releases that support conformal coated variants are the same as the

software releases for non-conformal variants of the same hardware.Conformal coating provides extra protection to sensitive electronic components when the 7705SAR is deployed in harsh environments.

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The SAR-8 provides 2 Control and Switching Module slots. The CSM [C-S-M] is a field-replaceablemodule integrated with an Ethernet switch-based fabric. It provides hot redundant protection for

the IP/MPLS control planes and database, switch fabric protection, external synchronization inputand output ports, Serial and Ethernet management ports and Alarm interface input and outputports.

The CSM connects directly to the backplane and carries traffic between adapter cards.

The switch fabric receives and directs traffic to the appropriate destinations according to therouting information.

The CSMv2 provides 2 additional ToD in and out ports and increased chassis throughput.

The CSMv1 supports a maximum bandwidth of 1 Gigabits per second per adapter card slot.

The CSMv2 supports 10/2.5/1 Gigabits per second in the first two adapter card slots and 2.5/1.

Support for 2.5 Gigabits per second and 10 Gb/s adapter cards on the 7705 SAR-8 v2 chassis

requires use of the CSMv2.The SAR-8 supports two variants of the CSMv1; a –48 volts DC variant and a +24 volts DCvariant.

There is one CSMv2; it supports both –48 volts DC and +24 volts DC.

Each CSM ships with one compact flash memory device that stores system boot images, software

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mages, an con gura on es an ogs. e compac as ev ce canno e accesse orremoved by an operator or installer.


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The CSMv1 and CSMv2 both support the Management Ethernet port with full and half duplexmode, 10M/100M speed, and Auto negotiation.

The DB-9 Console port supports baud rates of 9600, 19.2k, 38.4k, 57.6k or 115.2K. A standardRS-232 serial cable with a male DB9 connector is supported.

connected to the network. The router must be initialized and have an IP address assigned to themanagement Ethernet port in the BOF, and the telnet server must be enabled.

The CSMv1 supports 2 MHz, 5 MHz, and 10 MHz synchronization.

The CSMv2supports 2 MHz and 10 MHz synchronization.

1.0/2.3 coaxial connectors are used for external synchronization input and output.

The CSMv2 provides RJ-45 input/output ToD/PPS (Time of Day Pulse Per Second) ports that areuse o rece ve an sen a s gna o an rom ase s a ons or rece vers o commun ca eTime-of-Day and Phase at up to 115 200 baud.

A conformal coated variant of the CSMv2 (-48/+24VDC) is available.

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The 7705 SAR-8 supports CSM redundancy when two CSMs are installed in the CSM slots.

The first CSM card installed in slot A or B becomes the active card; the second CSM installed

becomes the hot-standby.Preference is given to the CSM in slot A if two are installed and initialized at the same time.

matelink to the standby CSM.

If the active CSM fails, the features are brought up on the standby CSM that takes over themastership Operational protocols and services stay up and the standby CSM transparentlytakes over from the formerly active CSM.

When the failed CSM comes back online, it assumes the role of the standby.

You can configure automatic synchronization for the CSMs using the CLI (C-L-I) or 5620 SAMnetwork manager.

It is possible to apply automatic synchronization to the configuration file or to the BOF, Boot.Idr,

config and image files.Note that CSMv1 is shown in the CLI as csm-1g and the CSMv2 is shown as csmv2-10g.

(3The CSM provides 1.0/2.3 coaxial connectors for an external synchronization input and output.

For redundant CSM configurations, a Y-cable can be ordered from Alcatel-Lucent to connect theSync In connectors on the two CSMs to the same external synchronization source.

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The 7705 SAR-8 provides six slots for the available interface adapter cards.

This slide shows the interface adapter cards that are supported for the 7705 SAR-8. More details

about the cards and their supported functionality in the 7705 SAR-8 chassis will be describedlater.

Conformal coated variants are available for some of the adapter cards.

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The SAR-8 and SAR-8 v2 chassis are each available in a –48/–60 volts DC version and a +24 voltsDC version.

When a chassis is used for –48/–60 volts DC operation, the –48/–60 volts DC version of thecomponents must be installed.

,must be installed.

Each SAR-8 chassis has two power connectors mounted on the front of the chassis.

These connectors provide access for two independent power feeds.

Power redundancy for the system is provided when both are used.

The SAR-8 uses a distributed power design, where each CSM and adapter card providesindependent power for its own functionality.

The power system has no field replaceable parts.

DC power cables are available from Alcatel-Lucent.The DC power LEDs are located on the Fan module.

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The SAR-8 fan module houses 8 fans.

Air enters from the intake vent on the right side of the chassis and exits through the exhaust vent on theleft side.

Fans operate at full-speed and are always operational, regardless of ambient temperature.

Individual fans provide sufficient cooling if another fan fails.

- .

The Fan LED indicates the operational status of the fans: green indicates normal, amber indicates 1 ormore fans out of order, and red indicates a fan failure.

The fan module must be replaced if 2 or more fans fail.

A critical alarm is generated if a fan has a fault.

Alarms are raised if the temperature exceeds 75 degrees Celsius or 167 Fahrenheit.

If tem erature exceeds 117 de rees Celsius or 243 de rees Fahrenheit the s stem shuts down until thetemperature returns within operational thresholds.

The SAR-8 v1 chassis supports three variants of the fan module: the –48 volts DC version introduced inRelease 1.0 does not support an extended temperature range; the –48 volts DC and the +24 volts DCversions introduced in release 2.0 both support an extended temperature range.

The SAR-8 v2 supports two variants of the fan module: the –48 volts DC and the +24 volts DC versionsboth su ort an extended tem erature ran e.

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The SAR-8 v1 and SAR-8 v2 fan modules are not interchangeable and cannot be used in the other chassisvariant.

.


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The SAR-8 v2 Fan module is wider in size than the SAR-8 v1 Fan module; this enables increasedcooling capacity.

The SAR-8 v2 supports both a –48 volts DC fan and a +24 volts DC fan.

Both support an extended temperature range.

e - v an an e - v an are on y compa e w e correspon ng c ass s. efan modules cannot be used in the other chassis.

Conformal coated variants are available for both SAR-8v2 fan modules (-48VDC and +24VDC).

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A Distribution Panel is used to connect to T1/E1 circuits via a 680pin AMP connector for 16-port ASAP adapter cards.

The RJ45 100-ohm T1 or 120-ohm E1 provides access for up to 32 ports, and the BNC 75-ohm E1access for up to 32 ports.

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Before we go to the next step, please complete a short quiz to confirm your newly acquiredknowledge.

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05_7705 Service Aggregation Router (Sar)_mod5 Sar 8 System Overview