Avaya DEFINITY Server CSI Maintenance Manual page 1763

UDS1-BD (UDS1 Interface Circuit Pack)
The following list of acronym definitions are for the
PLB = Payload Loopback
BLB = Board Loopback
ELB = Equipment Loopback
LLB = Line Loopback
RLB = Repeater Loopback
CLJ = Loopback Jack Loopback
R-LLB = Remote Line Loopback
SMRT = Smart Jack
LPBK = Loopback
Circuit Pack Administration and Options
The DS1 configuration for each circuit pack is administered on the DS1 Circuit
Pack form. Bit Rate is set to 1.544 Mbps for 24-channel systems, and 2.048
Mbps for 32-channel systems. Country Protocol is used to drive layer 3
protocol decisions based on PRI specifications specific to a given country (not
those related to specific features). This Country Protocol is independent of the
Country parameter administered on the country-options system-parameters
form. Different UDS1 circuit packs may be administered with different Country
Protocols, allowing the switch to act as a gateway between two incompatible
ISDN-PRI implementations (for example, between two different countries). US
systems use country protocol 1. Near-End CSU Type is set to other for no
CSU installed or for an external CSU such as an ESF T1 CSU, or set to
integrated for the 120A1 CSU Module or the 401A T1 Sync Splitter. Answering
integrated will cause additional fields to be displayed for administering the
Enhanced Integrated CSU Module. E1 Sync-Splitter? is set to y if a 402A or
403A E1 Sync splitter is used to provide timing to an ATM switch. Echo
Cancellation? is set to y if the echo cancellation right-to-use feature has been
activated and this TN464GP/TN2464BP or later suffix board is to supply echo
cancellation. In addition to the above there are numerous other fields defining
such parameters as framing modes, line coding, companding mode and so on.
Two option jumpers located on the side of the TN464C/D circuit pack must be
installed correctly. The figures on the following page show how to configure the
circuit pack for 24-channel or 32-channel DS1, and for 75*W (coaxial) or 120*W
trunk connections. The channel selection must match the parameters
administered on the corresponding DS1 Circuit Pack Form. (US applications use
24 Channels.)
555-233-119
Figure 56 on page 1762:
Issue 5 October 2002
1763