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Maintenance Objects
555-233-119
758
Issue 5 October 2002
ATM-TRK (Circuit Emulation Service
Circuit Pack)
This maintenance object explains how you test and repair TN230x ATM Interface
circuit packs (TN2305 and TN2306) that have been administered as virtual
ISDN-PRI trunks for ATM Circuit Emulation Service (CES). The maintenance
instructions for TN230x circuit packs that have been administered as Expansion
Interfaces for WAN connectivity are in the ATM-INTF (TN2305/6) maintenance
object.
Description
The TN2305 and TN2306 ( Table 87 on page 758 ) are dual-purpose ATM circuit
packs that can be administered as either:
■
‘‘ATM Circuit Emulation Service’’ or virtual ISDN-PRI signaling trunks.
■
Expansion Interfaces (ATM-EI) for Port Network Connectivity (ATM-PNC)
between the PPN and the EPNs.
The TN2305 and TN2306 require SONET OC-3 or SDH STM-1 fiber cable
connections between the circuit pack and the ATM switch. As a trunk board, it
supports direct connection between ATM CES circuit packs without an intervening
ATM switch. TN230x circuit packs are not interchangeable.
MO Name
(in Alarm Log)
Alarm Level Initial Command to Run
1
1. UU is the universal cabinet number. C is the carrier designation (A, B, C, D, or E). SS is the number
of the slot in which the circuit pack resides (01 to 21).
Full Name of MO
ATM-TRK MAJOR test board UUCSS ATM TRUNK (ATM Circuit Emulation Service)
ATM-TRK MINOR test board UUCSS ATM TRUNK (ATM Circuit Emulation Service)
ATM-TRK WARNING test board UUCSS ATM TRUNK (ATM Circuit Emulation Service)
Table 87. R7 ATM-TRK circuit packs
Circuit pack Channel types Interface Fiber Echo cancellation
TN2305 B and D
channels 24 or 32
channel Multi mode Y
TN2306 B and D
channels 24 or 32
channel Single mode Y
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