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UDS1-BD (UDS1 Interface Circuit Pack)
Issue 4 May 2002 10-1837 555-233-123
TN2242 serviceability
Hardware connections
This circuit pack can be
■
Mated to another circuit pack of the same type when interconnecting two
DEFINITY systems
■
Directly connected to the TDM network device
■
Directly connected to another vendor PBX using ISDN PRI signaling
Loopbacks
There is no automatic process to signal the remote end to provide loopbacks for
testing purposes. All loopbacks to be tested with a single circuit pack must be
local loopbacks on the circuit pack.
Remote loopbacks may be possible with the TDM network equipment with
appropriate coordination between BCS Services Technicians and the service
technicians of the TDM equipment (considered a CPE device).
TN464GP/TN2464BP UDS1 Circuit Packs With
Echo Cancellation
The TN464GP and TN2464BP UDS1 circuit packs feature an integrated echo
canceller. Echo cancellation is a Software Right-To-Use feature that can be turned
as needed. Echo cancellation supports channels carrying voice and is not
intended for channels that support data. The TN464GP/TN2464BP will have the
capability to detect modem tone and turn off echo cancellation accordingly for the
duration of a data call. Echo cancellation on the TN464GP/TN2464BP will be
administrable per channel. The echo cancellation circuitry on a given
TN464GP/TN2464BP is driven by administrable parameters.
The TN464GP/TN2464BP circuit packs are intended for use with ATM, IP,
wideband, or other complex services which are likely to have problems with echo.
The echo cancellation circuitry on a given TN464GP/TN2464BP is a right-to-use
feature on the System-Parameters Customer-Options form. Also on this form is a
field
Maximum Number of DS1 Boards with Echo Cancellation
that
indicates the number of DS1 boards on which echo cancellation is activated for a
specific customer.