optix metro wdm series equipment commissioning and testing introduction issue1.0

8/10/2019 OptiX Metro WDM Series Equipment Commissioning and Testing Introduction ISSUE1.0

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Internal Use 2

Objectives

Upon completion of this course, you

will be able to Understand preparation for

commissioning and testing

Understand Site commissioning

Understand system commissioning


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Internal Use 3

Chapter1 Preparation for commissioning and

testing

Chapter2 Site commissioning

Chapter3 Networking commissioning


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Internal Use 4

Commissioning Conditions Check

Check the following items before commissioning: The equipment is well installed and has passed the hardware

installation check.

The OptiX iManager T2000 network management system

(T2000 for short) is installed in both the central equipment room

and the laptop, and it has been tested. The OptiX iManager T2000-local craft terminal (LCT for short) is

installed in the laptop and has been tested.

The equipment in each station is provided with two power

supplies.

The equipment is well connected with the external alarmequipment (if needed).

The ODF in each station is installed and is ready for use.


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Internal Use 5

Site commissioning

Item Sub-item

Site commissioning

Checking hardware

Powering on the cabinet

Testing subrack functions

Checking software version

Testing the visual and audible alarm

Checking fiber connection

Setting alarm and performance monitoring

Testing embedded control channel (ECC)

communication

Backing up NE database

Testing equipment restart


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Internal Use 6

Networking Commissioning

Item Sub-item

Networking commissioning

Checking network-wide fiber connections

Testing the supervisory channel

Adjusting optical power

Testing system indices

Testing protection switching

Testing orderwire

Testing bit errors

Configuring servicesVerifying T2000 function


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testing




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Checking Hardware

Step Action

1 Checking the Cabinet

2 Checking the Subrack

3 Checking Cable Distribution

4 Checking the Board

For details, refer to OptiX Metro 6100 WDM Multi-Service

Transmission System Installation Manual.


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Powering on the Cabinet

Step Action Index

1 Checking the Fuse Capacity The maximum power consumption of asubrack : 600 W

The fuse capacity of a subrack :20 A

2 Checking the Output Voltage The output voltage of the power supply:38.4 V

and57.6 V (48 V DC20%)

3 Checking the Resistance

(Turn all power switches on

the front panel of the power

distribution box to OFF)

Measure the resistance between NEG1(-) or

NEG2(-) and RTN1(+) or RTN2(+) . The valueshould be .


NEG2(-) and protection grounding post. The value

should be .

4 Checking the Resistance

(Turn all power switches on

the front panel of the power

distribution box to OFF)

Measure the resistance between NEG1(-)or

NEG2(-) and RTN1(+) or RTN2(+). . The value

should be more than 20 k.


NEG2(-) and protection grounding post (). The

value should be more than 20 k


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Testing Subrack Functions

Step Action Index

1 Powering on theSubrack Check whether the POWER ON indicator on

the DPFU board in the interface area is on

and whether the subrack is powered on.

2 Checking the Fan Check the indicator on the front panel of the fan

tray assembly.

3 Checking Board Indicators Check whether only the green indicator of each

board flashes once every other second.

The yellow indicator on the SCC boards is

constantly on.

4 Testing the RST Button Press the RST button on the SCC board of an

NE to restart it.



Testing the Visual and Audible Alarm

Step Action Details

1 Testing the ALC Switch Remove the fiber connector from a receiving

optical interface. The NE reports an alarm

and buzzes. Turn the ALC switch down and check whether

the alarm sound stops in three seconds.



Checking Fiber Connection

Step Action

1 At the client ODF, connect the transmitting (Tx) and receiving (Rx)

optical interfaces of an SDH analyzer with the Rx and Tx optical

interfaces of an OTU board.

2 At the line ODF, loopback the IN and OUT optical interfaces of theFIU board ensuring a 10 dB attenuator.

3 Send optical signals to the OTU board through the Tx optical interface

of the SDH analyzer. And then the Rx optical interface of the SDH

analyzer should receive the signals after loopback. It indicates the fiber

connection is correct.

4 Check the fiber connection of other OTU boards in the same way.



Continue

Step Action Description

1 Setting Alarm and Performance

Monitoring

Use the T2000 to set performance

and alarm monitoring.

Observe the performance event

as long as possible, at least one

hour.

2 Testing ECC Communication in a

Station

All NEs should be accessed

through NM. If any NE cannot be

accessed, check the fiber

connection or parameter

configuration.

3 Backing Up NE Database The NE database can ensure thatthe SCC unit restores to normal

operation automatically upon data

loss or power failure.



Testing Equipment Restart

Step Action

1 Switch off the subrack.

2 Switch on the subrack after ten minutes and check whether the boards runnormally.

3 Check whether the services operate normally. Test some typical services and

make sure there is no bit error or abnormal performance event.



Inspection Items after Site Commissioning

Item Description

SCC The ALC switch is in the upper position.

Orderwire phone The connector of the phone cable is inserted in the corresponding

interface; the ring switch of the phone in ON, the dialing mode is T

and the TALK button is not active.

Board interface The fiber jumper for test purpose is removed and the normal

connection is recovered.

ODF The fiber jumper for test purpose is removed and the normal

connection is recovered.

T2000 NM All loopbacks of the boards are released and the services configured

for test are deleted.




testing





Network Commissioning

Network commissioning aims to: Connect all NEs in a network in line with the

engineering design scheme.

Test services of the network to verify the

configuration.

Test required functions for the network, such

as orderwire and protection switching.

Test long-term communication quality of the

network through alarm and performance event.



Checking Network-Wide Fiber Connections

Step Action

1 Measure the optical power . Make sure the FIU boards receive the optical

signal from the opposite station.

2 Measure the optical power from the OUT interface of the FIU.3 Check the fiber connection and the line attenuation between other adjacent

stations in the same way.

In this commissioning sub-item, check the following two items:

Whether the transmitting and receiving optical interfaces of the

line cables are connected correctly.Test required functions for the

network, such as orderwire and protection switching.

Whether the optical attenuation in the line is normal.



Testing the Supervisory Channel

Step Action

1 Check the fiber connection of the OSC unit

2 Use an optical power meter to measure the transmitting optical power of the

OSC boards. It should range from3 dBm to6 dBm.

3 Use the 10 dB optical attenuator to adjust the actual receiving optical power ofthe OSC boards to30 dBm.

The OptiX Metro 6100 can offer two modes of supervisory:

Whether the optical attenuation in the line is normal. Optical supervisory channel (OSC)

Electric supervisory channel (ESC)

Testing OSC

Testing ESC

When the OTU starts to work and the service is normal, the ESC route is set up.



Adjusting optical power

the main operation is to use optical attenuators to adjust thefollowing optical power values.:

Input optical power of the optical amplifier at the transmit end.

Input optical power of the optical amplifier at the receive end.

Input optical power of OTU at the WDM side.

Adj ti I t O ti l P f th O ti l



Adjusting Input Optical Power of the Optical

Amplifier at Transmit End

LWM1

OBUM40

SDH

analyzer

LWM2

LWM3

For stations equipped with optical amplifiers, adjust the optical power of any

single-wavelength in the input signal of the optical amplifier at transmit end to

the prescribed typical value.

The type of

optical

amplifier

Typical value of single-

wavelength input optical

power (dBm)

Gain

(dB)

Input optical power

range (dBm)

Output optical

power range

(dBm)

OAU-C01 21 to1520 to

3332 to 0 12 to 20


3332 to3 12 to 17


3232 to6 6 to 20

OBU-C01 21 23 32 to6 9 to 17

OBU-C03 18 23 22 to3 1 to 20

OPU-C01 21 20 32 to6 12 to 14

OPU-C02 21 20 32 to6 12 to 14

Adj sting Inp t Optical Po er of the Optical


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Internal Use 22

Adjusting Input Optical Power of the Optical

Amplifier at the Receive End

For stations equipped with optical amplifiers, adjust the optical power of anysingle-wavelength in the input signal of the optical amplifier at transmit end to

the prescribed typical value.

At the receive end, adjust the optical power of the multiplexed signal

coming from the line until the single wavelength optical power reaches the

typical value.

The optical power formula is: Pm=Ps + lgN

Pm : Optical power of multiplexed signal

Ps : Optical power of single wavelength signal

N : Number of wavelengths in multiplexed signal

LWM1

OPUD40/

MR2LWM2

LWM3

Adj i h I O i l P f OTU WDM Sid


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Internal Use 23

Adjusting the Input Optical Power of OTU at WDM Side

Adjust the input optical power of OTU at WDM side to the optimal

range:

Received signal rate Receiver laser typeOptimal range for input optical power

(dBm)

2.5 Gbit/s PIN 6 to12

2.5 Gbit/s APD 16 to22

10 Gbit/s PIN 6 to10


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Internal Use 24

Testing System Indices

Test item Description

OTU

Mean launched power Required

Actual received optical power Required

Receiver sensitivity OptionalReceiver overload Optional

Central wavelength (frequency) anddeviation

Optional

Side mode suppression ratio Optional

20dB spectral width Optional

Optical multiplexer/demultiplexer unit Insertion loss Required

OADM unit

Insertion loss of drop channel Required

Insertion loss of add channel Required

Insertion loss of pass-through channel Required

Optical amplifier

Actual input optical power Required

Actual output optical power Required

Channel gain Required

OSC unit

Launched optical power Required

Actual received optical power Required

OSC operating wavelength Optional

Receiver sensitivity Optional

For indices requirement, refer to OptiX Metro 6100 WDM Mult i -Servic e Transm issio n

System Technic al Manual.


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Internal Use 25

Testing Protection Switching

The OptiX Metro 6100 supports the following protection modes:

Intra-OTU 1+1 optical channel protection

Inter-OTU 1+1 optical channel protection

Client-side 1+1 optical channel protection

Wavelength cross-connection protection

Optical wavelength shared protection (OWSP)

Optical line protection.

For the working principle of each protection mode, refer to OptiX Metro

6100 WDM Multi-Service Transmission System Technical Manual.


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Internal Use 26

Testing Bit Errors

Testing the 15-Minute Bit Errors of each Optical Channel

Testing the 24-Hour Network-Wide Bit Error

Bit error test should cover all service channels in the network.

There should be no bit error in consecutive 24 hours. To ensure

the 24-hour network-wide bit errors test can be completed

successfully, perform a 15-minute bit errors test to each channel

in advance.

Station A

LWM1SDH

analyzer LWM1

IN

OUT

Tx

Rx Tx

Rx

Station B


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Internal Use 27

Other Items

Configuring Services

For details, refer to OptiX Metro 6100 WDM Multi-Service

Transmission System Configuration Guideand T2000 online

help.

Verifying T2000 Function

For verification items, refer to OptiX iManager T2000

Transmission Network (Subnet Level) Management System

Acceptance Manual.


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optix metro wdm series equipment commissioning and testing introduction issue1.0

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