Alcatel-Lucent 1850 TSS-320, Turn-Up And Commissioning Manual, Page: 73 / 140

Local testing and operating sequence Tests and Measurements
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PN 8DG08136CAAA
Issue 1 March 2008
3-47
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d. End-to-end stability test
On ODF, perform a physical loop (station C, user side) on all the channels with the
same bit rate. Referring to the example of
Figure 3-15 , and assuming CH1 and CH2
are OC-192 and CH3 is 10 GbE, on ODF, perform a physical loop on CH1 and
CH2 client side in Station C.
In Station B (OADM), connect CH1 in physical pass-through.
On ODF, connect the pattern generator/error detector output to the CH1 client
input in station A, and check that the CH1 client output power (station A) is OK
(refer to
Chapter 4 , “SFP and XFP modules optical characteristics” (p. 4-16) .).
On ODF, perform a daisy chain in station A, connecting CH1 client output to CH2
client input.
Check that the CH2 client output power (Rx value on the instrument) is OK.
Connect the CH2 client output to the pattern generator/error detector input and
start the stability test: at a given bit rate, check no errors.
Figure 3-15 End-to-end stability test example in DWDM system
e. After having checked all the channels, by CT check that all the ports under
stability test don't have any alarm.
SNCP protection check (line ports)
Purpose
•
Verify the SNCP protection efficiency
Test instruments [see
Table 3-1, “Instruments” (p. 3-2)
]
•
Craft terminal (E)
•
Pattern generator/error detector (A)
CH1 CH1
Pattern
Generator
Error
Detector
STM-N
STM-N
STM-N STM-N
STM-N
STM-N
GbE GbE
CH1
CH2
CH3
CH1
CH2
CH3
CM
DX
/1
CM
DX
/2
OA
D
M
/1
OA
D
M
/2
STATION A
STATION B
STATION C
SPAN 1 SPAN 2
CH2,CH3