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Job aid for BSNL EETP course
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Digital Transmission System (DTS) Job Aid
EETP/BSNL Silver Certification course Page 1 of 4
For Restricted Circulation
JOB AID-1 (W1/S1)
Name of participant: …………………………………………….
Registration Number: …………………………………………….
1.1 Title: Identification of different types of Transmission media and their
applications.
1.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Identify the different types of Transmission media like CAT-5/CAT-6
Copper Cables, Feeder Cables, Optical Fiber Cable, Antenna etc.
b) Understand application of different Transmission media and Components.
1.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
1.4 Set up/Equipments Required:
DDF
CAT-5/CAT-6 Cables/Copper Cables
OF Cable/ Feeder Cables
Different types of Antenna
1.5 Exercise: 1.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
1.5.2 Demonstration by Faculty.
1.5.3 Write down the different Component of DDF?
Sl. No. Name of Component
Digital Transmission System (DTS) Job Aid
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1.5.4 Identify the CAT-5/CAT-6 Cables and Connectors and uses?
CAT-5/CAT-6 Cable Use
1.5.5 Identify the different types of Copper Cable used for local loop?
SN Copper Cables
1.5.6 Identify the different types of feeder Cable used in Radio Communication? Sl. No.
1.5.6 Write down the different types of Antenna used for transmission?
Sl. No. Type of Antenna
Digital Transmission System (DTS) Job Aid
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1.5.7 Identify the different Types of Optical Fiber Cables?
OF Cable Type Use
1.6 Learning Outcome :( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
1.7 Self-Assessment:
(1) Waveguide is used for more than …. transmission.
(a) 2 GHz
(b) 2 MHz
(c) 2 KHz
(d) 200 Hz
(2) Full form of DDF
(a) Digital Distribution Frame
(b) Data Digital Frame
(c) Data Distribution Frame
(d) Digital Divide Frame
(3) Parabolic antenna is generally used for ………
(a) Point to point Microwave communication
(b) Point to multi-point Microwave communication
(c) GSM BTS
(d) None of these
(4) For high speed communication which of the following is the best medium?
(a) Copper wire
(b) Microwave
(c) Optical Fiber Cable
Digital Transmission System (DTS) Job Aid
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(d) Co-axial Cable
(5) Which one of the following is not a part of DDF
(a) Jumper
(b) Tag Block
(c) U-Link field
(d) PCB
(6) The connector used in CAT-5 cable is
(a) RJ-11
(b) RJ-45
(c) BNC
(d) RJ-100
(7) Which one of the following is not a type of Copper Cable in Telecom
(a) Primary
(b) Secondary
(c) Tertiary
(d) Distribution
(8) Tight Buffer tube OFC is used in
(a) Indoor application
(b) Outdoor application
(c) Both (a) and (b)
(d) None of the above
(9) Aerial OFC is used in
(a) Every where
(b) In hilly areas
(c) In sea.
(d) For satellite communication.
(10) Submarine OFC is used in
(a) Every where
(b) In sea
(c) In hilly area
(d) For satellite communication
Digital Transmission System (DTS) Job Aid
EETP/BSNL Silver Certification Course Page 1 of 4
For Restricted Circulation
JOB AID-2 (W1/S2)
Name of participant: …………………………………………….
Registration Number:…………………………………………….
2.1 Title: Identification of different types of Transmission System and their
Applications
2.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Identify the different types of Transmission media like PDH,SDH, Radio
Systems, VSAT etc
b) Understand the Network Architecture and application of different
Transmission System.
2.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
2.4 Set up/Equipments Required:
FDF
PDH/SDH System
Radio System/VSAT
2.5 Exercise:
2.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
1.5.2 Demonstration by Faculty.
2.5.3 Locate the position of FDF and describe the following?
Full Form of FDF
Application of FDF
Type of connector used
Locate the position of
Pigtail & Patch cord
Locate Equipment and
Digital Transmission System (DTS) Job Aid
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Cable side
2.5.4 Write down the different Types of PDH System? SN Types of PDH Systems Capacity of PDH Sys
2.5.5 Identify the different types of Network Elements of SDH System and their
uses?
SN Name of Network Element of SDH
SYS
Uses
2.5.6 Visit to other transmission systems?
SN Name of System Channel Capacity Application/Use
Digital Transmission System (DTS) Job Aid
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2.6 Learning Outcome :( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
……………………………………………………………………………………..
2.7 Self-Assessment
(1) PDH stands for …………………..
(a) Presynchronus Digital Hierarchy
(b) Plesiochronous Digital Hierarchy
© Permanent Digital Hierarchy
(c) Permanent distribution Hierarchy
(2) FDF stands for ………………
a. Fiber Distribution Frame
b. Fiber Digital Frame
c. Fast Distribution Frame
d. Full Digital Frame
(3) Which one is PDH system
(a) 8 Mbps
(b) 16 Mbps
(c) 32 Mbps
(d) 64 Mbps
(4) Which one is E4 of PDH
(a) 140 Mbps
(b) 155 Mbps
(c) 256 Mbps
(d) 565 Mbps
(5) Which of the connecter used for termination of 34 mbps in PDH at DDF…..
(a) FCPC
(b) Co-axial
(c) 120 ohm cable
(d) None of the above
(6) Which one is not the Network Element of SDH
(a) TM
(b) ADM
(c) Regenerator
(d) ROADM
(7) TM is used in which Topology
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(a) Point to point
(b) Ring
(c) Mesh
(d) All of the above
(8) Which type of antenna is used for point-to-point M/W system ………..
(a) parabola
(b) Yagi
(c) isotropic
(d) none of these
(9) Antenna Size is more than 5 meter is installed …..
(a) At Hub
(b) At subscriber premises
(c) Both of above
(d) None of above
(10) What is the full form of VSAT
(a) Variable speed aperture terminal
(b) Variable size amplitude terminal
(c) Very small aperture terminal
(d) Very sensitive aperture terminal
Digital Transmission System (DTS) Job Aid
EETP/BSNL Silver Certification Course Page 1 of 4
For Restricted Circulation
JOB AID-3 (W2/S1)
Name of participant: …………………………………………….
Registration Number: …………………………………………….
3.1 Title: Identification of different types of Optical connectors & components used in
Optical Fiber Systems and their applications.
3.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Identify the different types of Optical Fiber connectors used in FDF/FDMS
and in System.
b) Understand application of different optical components.
3.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the same
will be carried out through field visit]
3.4 Set up/Equipments Required:
Different types of Optical Connectors & components.
FDF/FDMS
PDH/SDH/DWDM System
3.5 Exercise: 3.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
3.5.2 Demonstration by Faculty.
3.5.3 Write down the components of Optical Fiber Cable?
1
2
Digital Transmission System (DTS) Job Aid
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3
4
5
3.5.4 List down the items/objects related to OF Network and their use?
Name of Item Use
3.5.5 Identify the different types of Optical Connectors and their applications?
Connectors Connector Type Applications
3.5.6 Locate the different Optical Component and their Connectivity in PDH/SDH
System?
S. No. Name of Optical Component Applications
1 Transmitter card
2 Receiver card
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3 LASER
4 APD
5 Pigtail/Patch Cord Connectivity
3.6 Learning Outcome :( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
……………………………………………………………………………………
3.7: Self-Assessment:
(1) Which one is information carrying part in OFC communication
(a) Core
(b) Cladding
(c) Both (a) and (b)
(d) None of these
(2) Which one of the following is not a component of OFC
(a) Buffer tube
(b) Strengthening Fiber
(c) Cable Jackets
(d) Jumper wire
(3) Which of the following statement is true
(a) In OFC information is travelling as light signal
(b) In OFC information is travelling as electrical signal
(c) Both (a ) and (b) are true
(d) Both ( a) and (b) are false
(4) TJB stands for ………………………..
(a) Trunk Joint Box
(b) Termination Joint Box
(c) Trunk junction Box
(d) Termination junction Box
(5) FC-PC is …….
(a) Full connector- Personal Connector
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(b) Frame connector – Physical connector
(c) Ferrule connector – Physical connector
(d) Fiber connector – Physical connector
(6) SC is ……………..
(a) Square connector
(b) Spare connector
(c) SDH Connector
(d) Synchronous connector
(7) Which of the following is false
(a) Patch cord is tight buffer tube cable
(b) Pigtail is used for indoor application
(c) Both ends of pigtail is having connectors.
(d) Patch cord is used for indoor application.
(8) What is the function of Transmitter (Source)
(a) Optical to electrical conversion
(b) Electrical to optical conversion
(c) Both (a ) and (b)
(d) None of the above
(9) Example of Optical source is
(a) LD
(b) LED
(c) Both (a) and (b)
(d) None of the above
(10) What is the function of APD
(a) Optical to electrical conversion
(b) Electrical to optical conversion
(c) Both (a) and (b)
(d) None of the above
Digital Transmission System (DTS) Job Aid-4
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JOB AID-4 (W2/S2)
Name of participant: …………………………………………….
Registration Number: …………………………………………….
4.1 Title: Multimedia of SDH
4.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Understand the concept of SDH Technology.
4.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
4.4 Set up/Equipment Required:
Multimedia of SDH (Use Window XP)
4.5 Exercise
4.5.1 Demonstration by faculty.
4.5.2 List down menus of Multimedia/CBT of SDH?
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
Digital Transmission System (DTS) Job Aid-4
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4.5.3 Write down the missing items in frame structure?
4.6 Learning Outcome:( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
4.7 Self-Assessment:
1 Time duration of STM-1 frame is …………. Microseconds.
2 No. of rows in STM-1 frame are …………
3 No. of columns in STM-1 frame are ………….
4 Bit rate of STM-1 is …………….
5 POH bytes are available in ……………………. column of STM-1 frame.
6 Payload capacity of STM-1 is …………… mbps
7 Calculate the bit rate of STM-1 with the help of frame structure.
8 No. of columns available for SOH in STM-1 frame are.
9 SDH is a global standard. (T/F)
10 SDH does not support 8 mbps PDH stream. (T/F)
Digital Transmission System (DTS) Job Aid-5
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JOB AID-5 (W3/S1)
Name of participant: …………………………………………….
Registration Number:…………………………………………….
5.1 Title: Network and Hardware Architecture of SDH
5.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Understand the Network and Hardware Architecture of SDH System.
b) Identify the different interfaces and Cards in each network Elements.
5.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the same
will be carried out through field visit]
5.4 Set up/Equipments Required:
Different types of SDH Sys like STM-1/STM-4
STM-1 /STM-4 equipped with all cards
LCT /NMS for Cross Connection
5.5 Exercise 5.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
5.5.2 Demonstration by Faculty.
5.5.3 Visit to SDH LAB and locate the different network Elements of SDH systems and
study the network topology (Linear/Ring) of the network elements?
Sl. No Name of NE Topology
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5.5.4 Identify and locate the different cards available in SDH Network Element?
Sl.
No.
Slot No. Name of Card
5.5.5 Write down the function of different cards viz Power Supply, Line Card, control
Card etc?
Name of Cards Function
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5.5.6 Identify & locate the different interfaces and connectors in each network
Elements viz NMS, Craft, Order Wire, Alarm, Clock Wiring Interfaces etc.?
1. …………………………………………………………………………..
2. …………………………………………………………………………..
3. …………………………………………………………………………...
4. ……………………………………………………………………………
5. ……………………………………………………………………………..
5.6 Learning Outcome :( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………….
…………………………………………………………………………………………..
……………………………………………………………………………………………
…………………………………………………………………………………………..
5.7 Self-Assessment:
1. A Red LED glow on the top of chassis in any NE indicates …………… alarms.
a. Critical b. Major c. Minor d. Deferred
2. Which type of cable is required for the termination of 2 mbps.
a. 120 ohm cable b. 75 ohm c. 600 ohm d. 50 ohm
3. ……… volt DC required for SDH systems.
a. 230 b. -48 c. 48 d. 50
4. ADM performs the function of …….
a. Regeneration b. add & drop c. termination d. all of
these
5. Transmitter & Receivers are available in ……………….. Card.
6. What type connector is used for NMS?
a. RJ45
b. RJ11
c. RS232
d. D Type
7. How many pins are available RJ45
a. 7
b. 8
c. 9
d. 10
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8. Order-wire may be used between………………
a. Terminal to Terminal
b. Terminal to ADM
c. ADM to ADM
d. All of these
9. Which type of cable is used for termination of 2Mb.
a. Co-axial
b. PCM
c. Helix
d. Ethernet
10. Which type of cable is used for termination of 34MB.
a. Co-axial
b. PCM
c. Helix
d. Ethernet
Digital Transmission System (DTS) Job Aid
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JOB AID-6 (W3/S2)
Name of participant: …………………………………………….
Registration Number: …………………………………………….
6.1 Title: Software Configuration of SDH
6.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Login to the SDH SYS etc.
b) Create the cross connection at VC-12 level between different network
elements
.
6.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the same
will be carried out through field visit]
6.4 Set up/Equipments Required:
Different types of SDH SYS like STM-1/STM-4
LCT /NMS for Cross Connection
6.5 Exercise
6.5.1 Demonstration by faculty.
6.5.2 Write down the steps for login to the System?
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
6.5.3 Identify the different modules/boards/units through LCT/ NMS?
Position of Cards Name of the Module/Board/Unit
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6.5.4 Write down the steps for Creation of cross connection at VC-12 level between
different network elements?
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
……………………………………………………………………………………………
6.6 Learning Outcome :( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
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6.7 Self-Assessment
Sl.
No.
Questions Choice 1 Choice 2 Choice 3 Choice 4
1. VC-12 supports………… 2Mb 34Mb 140Mb None of these
2. VC-3 supports…………. 2MB 34Mb 140Mb None of these
3. VC-4 supports………… 2Mb 34Mb 140Mb All of these
4. TUG-2 Supports………..
no. of 2Mb.
1 2 3 4
5. TUG-3 Supports…..2Mb. 21 22 23 24
6. Pointer is added at …… TU-12 TU-3 AU-4 All of these
7. VC-4 supports…140Mb One Two Three Four
8. PRC Stands for ……… Primary
ready clock
Previous
reference
clock
Primary
reference
clock
None of these
9. SSU stands for
……………………
Secondary
switching
unit
Secondary
supply unit
synchroni
zation
supply
unit
Synchronizatio
n switching
unit
10. High accuracy level clock
is ……………………….
PRC SSU SEC None of these
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JOB AID-7 (W4/S1) Name of participant: …………………………………………….
Registration Number: …………………………………………….
7.1 Title: Software configuration in SDH- Alarm Management, Performance
management, Synchronization
7.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Indentify the different Alarms available on the rack
b) Check the different alarm using LCT/EMS/NMS
c) Monitor different performance parameter using LCT/EMS/NMS
d) Synchronisation of SDH Network
.
7.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
7.4 Set up/Equipments Required:
Different types of SDH SYS like STM-1/STM-4
LCT /NMS for Cross Connection
7.5 Exercise
7.5.1 Demonstration by Faculty
7.5.2 Identify the different visual alarms available in SDH network elements?
Name of Alarms Color of Alarm
7.5.3 Check the different alarms with the help of LCT?
Name of Alarm Severity (Critical/ Major/
Minor /Reminder etc.)
Reason
LOS
AIS
LOF
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Degraded Signal
7.5.4 Check the different performance parameter with the help of LCT/EMS/NMS?
Name of Parameter Value
ES
SES
UA
Tx Power
Rx Power
7.5.5 Write down the purpose of synchronization in SDH Equipment?
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………………
7.5.6 Write down the some routine test of SDH System.
Frequency Name of Parameter P/S check, BER, US etc
Monthly A to B direction B to A direction
Tx Power (Ref. -2 Rx Power (Ref. - Tx Power (Ref. -2 Rx Power (Ref. -
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to 3 dBm) 8 to -28 dBm) to 3 dBm) 8 to -28 dBm)
Half yearly ES SES UAS BBE
7.6 Learning Outcome :( to be filled by participants)
…………………………………………………………………………………………..
…………………………………………………………………………………………..
…………………………………………………………………………………………..
…………………………………………………………………………………………..
………………………………………………………………………………………….
…………………………………………………………………………………………..
7.7 Self-Assessment
Sl.
No
Question Choice 1 Choice 2 Choice 3 Choice 4
1 LOS stands
for…………………
level of
system
Loss of
section
Loss of signal All of these
2 LOF stands for
………………
Loss of frame Level of
frame
Length of
frame
none of these
3 Highest severity alarm is
……………...
Major Minor Critical None of these
4 AIS stand for……… Alarm
indication
signal
Alarm
interference
signal
All indication
signal
none of these
5 Severity of the Alarm
shown as …………..
Critical Major Minor All of these
6 STM Performance can be
viewed at…………level.
STM Port VC Tributary All of these
7 In Performance
Monitoring, ES stands
for……………
Error Section Errored
Seconds
Error Severity none of these
8 In Performance
Monitoring, SES stands
for……………
Severely
Errored
Section
Severely
Extra Seconds
Severely
Errored
Seconds
none of these
9 In Performance
Monitoring, UAS stands
for……………
Useful
Available
Seconds
Unified
Available
Seconds
Unavailable
Seconds
Unavailable
Section
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10 In Performance
Monitoring, BER stands
for……………
Bit error rate Byte error rate Block error
rate
Bit error ratio
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JOB AID-8 (W4/S2) Name of participant: …………………………………………….
Registration Number: …………………………………………….
8.1 Title: Visit and demo to Microwave Mini link /Microwave System/ Ku Band
VSAT System*.
8.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Identify the different M/W Systems and Mini-Links
b) Understand the Concept of Operation of M/W System and Mini-Links.
8.3 Venue/Site: Training Center/Field visit.
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
8.4 Set up/Equipments Required:
Different M/W Systems
Mini-Links
8.5 Exercise
8.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
8.5.2 Demonstration by faculty.
8.5.3 Identify the different types Radio Systems (DRS)/Ku band VSAT.
Name of Systems Operating band of Radio Equipment Channel Capacity
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8.5.4 Write down the different components of any Microwave system/Ku band VSAT and their
uses?
Components Uses
8.5.5 Draw the General block schematic of Digital Radio Systems/Ku band VSAT
showing all important modules?
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8.5.6 Write down the different component of Mini-Link and their PCM capacities?
8.5.5 Write down the maintenance schedule of Microwave system/Ku-band
VSAT.
Frequency Name of System
Microwave System/VSAT, parameter like P/S check, IF
level, RF frequency etc.
Daily
Weekly
Monthly
Quarterly
Half yearly
8.6 Learning Outcome:( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
8.7 Self-Assessment
Q.1. In M/W system the modulators are available …………..
a. indoor b. outdoor c. both a and b d. None of these
Q 2. 2Mb/s data rate stream terminate in the DDF with….. Cable
a. 120 Ω b. 75 Ω c. 50 Ω d. 600 Ω
Q. 3. Point to point Microwave systems require ……….
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a. LOS b. Non LOS c. both a and b d. None of these
Q.4. The wave guides are used in …………..system
a. 600Khz b. 600Mhz c. 6 Ghz d. None of these
Q.5. The branching N/W used in Radio system …..
a. To combine and decombine RF signal b. to combine only RF Signals
c. to de-combine the RF signal d. None of these
Q. 6. Which type cable is used for Tx/Rx in Ku-band VSAT
a. RJ- 45 b. Cxl. C. RG-11 d. RJ-11
Q. 7. LNB is available in ……………….. in VSAT.
a. ODU b. IDU c. Both a & b d. None of these
Q. 8. Which type of antenna is used in Ku-band VSAT in remote earth station
a. OFF-Set feed b. Prime Focal feed c. Cassagegrain feed d. None of
these
Q. 9. In Ku-band VSAT system the cable length used in trans direction is …..
a. 15 M b. 20M c. 30M d. 5M
Q.10. The Ku-band VSAT hub station located at……
a. Sikandrabad b. Bangalore c. Thane d. both one &
three
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JOB AID-9 (W5/S1)
Name of participant: …………………………………………….
Registration Number:…………………………………………….
9.1 Title: Visit and demo to DWDM System.
9.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Identify the different optical network element and boards
b) Understand the network architecture of DWDM.
9.3 Venue/Site: Training Center.
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
9.4 Set up/Equipments Required:
OTM
OLA/OADM
LCT
9.5 Exercise
9.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
9.5.2 Demonstration by faculty.
9.5.3 Visit to DWDM Lab/Station Locate the different Optical Network Elements in
Lab and their purpose?
Rack No. Name of NE Purpose
1
2
3
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4
5
9.5.4 Write down the different boards available in sub-rack of Network Elements?
OTM Name of Board
OLA
9.5.5 Identify and Write down the function of different board available in DWDM
System?
OTU/Transponder
OMU/Optical Multiplexer
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ODU/ Optical Demultiplexer
OBA/Booster Amplifier
OPA/Pre-amplifier
OSC
9.5.6 Draw the Block Diagram of DWDM System?
9.5.7 Write down the some routine test of DWDM system.
Frequency Name of parameter like Power levels of signals etc.
Monthly OBA OUT
(Ref. Value Max
+20dbm)
OPA IN
(Ref Value -8 to
-3 dbm)
Quarterly OLA IN
Reference Value
-8 to -3dbm
OLA OUT
Reference Value
Max +20dbm
Half yearly Transponder IN
Power
Transponder Out
Power
9.6 Learning Outcome :( to be filled by participants)
………………………………………………………………………………………
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………………………………………………………………………………………
………………………………………………………………………………………
…………………………………………………………………………………………
…………………………………………………………………………………….
…………………………………………………………………………………
9.7 Self-Assessment:
Sl.
No.
Question Choice 1 Choice 2 Choice 3 Choice 4
1 OTM Stands
for…………………
…...
Optical
Transmitter
Unit
Optical
Transponder
Unit
None of these All of these
2 OLA Stands
for…………………
…...
Optical Line
Amplifier
Optical Link
Amplifier
Optical Line
Attenuator
None of these
3 OBA is used at
………………..
TX RX Regenerator None of these
4 At receiver, Optical
……………Amplifi
er is used
Booster Pre Line Post
5 OSC Wavelength is
………………
1550nm 1565nm 1530nm 1510nm
6 ……………type
amplifier is used?
EDFA FDEA Raman TWSLA
7 OMU stands
for……………
Optical
Multiplexing
Unit
Optical
Maping Unit
Optical
Multiline Unit
None of these
8 …………..is used to
directly replace
optical regenerator?
OBA OPA OLA None of these
9 ……………is used
to separate different
wavelengths and
provides an online
monitoring
interfaces
OTM ODU OMU OSC
10 OSC stands
for…………………
Optical Signal
Connection
Orderwire
Section
Channnel
Optical
supervisory
Channel
All of these
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JOB AID-10 (W5/S2)
Name of participant: ………………………………………………
Registration Number: ……………………………………………..
10.1 Title: Identification of different types of Optical connectors, Splitters, ONT’s
components of GEPON/GPON OLTE etc and their applications.
10.2 Objective:
On completion of this visit/ practical exercise, the participant will be able to:
a) Identify the different types of Optical connectors, Splitters, ONT’s
components of GEPON/GPON OLTE etc and their applications..
b) Understand application of Splitters, ONT’s, and to provide the various
services on GPON/GEPON Sys.
10.3 Venue/Site: Training Center/FTTH Station
[*In training locations where the required equipment / set-up is not available, the
same will be carried out through field visit]
10.4 Set up/Equipments Required:
a) Different types of Optical connectors
b) Different types of Splitters
c) Different types of ONT’s
d) GPON/GEPON OLTE
10.5 Exercise: 10.5.1 Standard Installation practice used for equipment to be taught (if applicable)
like:
• Marking of lines to mount the equipment’s Iron work installation
• Power DC distribution panel installation
• Mounting of Racks
• Cable preparation and laying
• Powering ON
• Software installation
• Equipping different modules
• Testing
10.5.2 Demonstration by Faculty.
10.5.1 Identify the different types of Optical Connectors and their uses for
GPON/GEPON Sys?
Name of Optical Connectors Use
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10.5.2 Locate the different elements of FTTH N/W ?
Name of Item Use
10.5.3 Identify the different types of Splitters?
…………………………………………………………………………………
…………………………………………………………………………………
…………………………………………………………………………………
…………………………………………………………………………………
…………………………………………………………………………………
………………………………………………………………………………….
10.5.4 Identify the different types of ONT’s and Interfaces available in ONT’s ?
ONT TPYE INTERFACE’S DEATAILS
10.5.5 Identify and locate the different cards available in GPON/GEPON SYS ?
Slot
No.
Name of Card Function of card
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10.5.6 Identify the different Interfaces available in OLT and their purpose?
UP-Link Interface
Capacity Purpose
PON-Interfaces
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10.5.7 Study the Network Architecture of FTTH N/W?
10.6 Learning Outcome:( to be filled by participants)
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
………………………………………………………………………………………
10.7 Self-Assessment
1. In FTTx x stand for ………………
1) Point of termination of fiber
2) Point of origination of fiber
3) Both choice 1and 2
4) None of these
2. Technology Option available for FTTH Architecture
1) AON
2) PON
3) Both choice 1and 2
4) None of these
3. Passive optical Network (PON) is a ………………..
a) Point to Mulit point
b) Point to Point
c) Both choice 1and 2
d) None of these
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4. In FTTH Network architecture optical splitter are used to enable a single optical fiber
to serve multiple premises ,typically ………?
1) 28
2) 30
3) 32
4) 36
5. On FTTH Network which Network element does not require power supply?
1) OLTE
2) ONT
3) Splitter
4) None of these
6. IN FTTH N/W for upstream which wave length is used ……………. ?
1) 1310 nm
2) 1490 nm
3) 1550 nm
4) I580 nm
7. IN FTTH N/W for down stream which wave length is used ……………. ?
1) 1310 nm
2) 1490 nm
3) 1550 nm
4) I580 nm
8. IN FTTH N/W for Cable –TV /Video which wave length is used ……………. ?
1) 1310 nm
2) 1490 nm
3) 1550 nm
4) I580 nm
9. IN FTTTH N/W Splitter(PON) Supports maximum distance …….?
1) 20 KM
2) 30 km
3) 40 km
4) 50 km
10. In FTTH N/W GPON Supports ………………………………….?
1) 1.25 Gbps down stream and 1.25 Gbps Upstream
2) 1.25 Gbps down stream and 2.5 Gbps Upstream
3) 2.5 Gbps down stream and 1.25 Gbps Upstream
4) None of these
11. In FTTH N/W GEPON Supports ………………………………….?
1) 1.25 Gbps down stream and 1.25 Gbps Upstream
2) 1.25 Gbps down stream and 2.5 Gbps Upstream
3) 2.5 Gbps down stream and 1.25 Gbps Upstream
4) None of these