DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1818UDS1-BD (UDS1 Interface Circuit Pack)
9
UDS1-BD (UDS1 Interface Circuit
Pack)

2Mbit Japan trunk (TN2242)

The TN2242 2Mbit, 30-port trunk circuit p ack supports Jap anese TTC private
networking environments. This circuit p ack interfaces only with network
equipment or other circ uit packs of the same model and is incompatible with al l
other digital trunk circu it packs.
The maintenance strategy for the TN2242 is similar to that of the TN464F DS1
interface circuit p ack. The TN2242 circuit pack is func tionally the same as the
TN464F (without ICSU) with the following exceptions:
■The Blue Alarm Inquiry Test (#139) always passes for the TN2242.
■The test ds1-loop c ommand is not executed for the TN2242.
■A different initialization message is sent when the loc al looparound test
(Test #135) is executed when reset board is run on a TN2242.
■Any tests associated with an Integ rated Channel Service Unit (ICSU) are
not executed, since ICSU is not sup ported on this circ uit pack.
■Any tests associated with new func tionality available with the
video-enabled TN464F are not executed for the TN2242.
■Cyclical Redundanc y Check (CRC) is not defined for this c ircuit pack.
■The D-Channel can be user-assigned to any port 1 - 30 when the signaling
mode is ISDN-PRI.
■Wideband is not supported.
■Stations (OPS) are not supported.
The TN2242 circuit pack also sup ports specialized versions of CAS (Channel
Associated Signaling) and ISDN-PRI signaling that pertain to the TTC private
networking environment in Japan.
MO Name (in
Alarm Log) Alarm
Level Initial Command to Run1
1. UU is the universal cabinet number (1 for PPN, 2 - 44 for EPNs). 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
UDS1-BD MAJOR test board UUCSS sh UDS1 Interface Circuit Pack
UDS1-BD MINOR test board UUCSS l UDS1 Interface Circuit Pack
UDS1-BD WARNING test board UUCSS sh UDS1 Interface Circuit Pack