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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Installing a DEFINITY ECS ATM-PNC
3-5Synchronization Installation and Testing
3
Installing and testing the synchronization splitter involves interrupting the DS1
signal provided by the service provider. Even though the DS1 circuit pack should
be down less than 5 minutes, before removing a working T1/E1 span, contact the
service provider. Failure to notify the T1/E1 service provider may result in:
— The service provider looping the T1/E1 span back to the
subscriber.
— A span alarm being detected at the central office and the span
being taken out of service, sending an AIS (blue Alarm) to the
DEFINITY ECS. The synchronization signal is necessary for testing
equipment and connections.
Splitter descriptions
Table 3-2 describes the 4 splitter models and their capabilities. The drawings
show the splitters and their connection points. Figure 3-5
shows a schematic of
the 2 jumper sets and their connections for 401A, 402A, and 403A sync splitters.
Table 3-2. Synchronization splitter models and attributes
Model T1/E1 Impedance Comcode Drawing Description/Application
400A T1 100 Ω 108217795 Figure 3-1 No ICSU capability
401A T1 100 Ω 108508078 Figure 3-2
Limited ICSU capability
402A E1 120 Ω 108508094 Figure 3-3
403A E1 75 Ω 108508102 Figure 3-4
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