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Configuring ISDN BRI hardware
553-3001-218 Standard 2.00 September 2004
. The DSLs are not polarity-sensitive and it is not necessary to
maintain signal polarity along each loop.
Procedure 25
Cross-connecting DSLs at the cross-connect terminal
To cross-connect SILC and/or UILC ports to the trunk wiring facilities:
1
Identify the card type (SILC or UILC) at the cross-connect terminal.
2
Identify transmit and receive pins on the top of the labeled distribution
strip for the card type you are connecting.
to identify ports and their pin numbers for a
SILC or UILC.
3
Identify the trunk wiring facilities connected at the cross-connect terminal.
4
Cross-connect the pins from the SILC or UILC to the trunk wiring facilities.
5
Repeat this procedure for each DSL.
Note:
For the system DSL in TE mode, reverse the TX and RX pairs as
shown in Figure 29. Maintain the same polarity on the Tip and Ring pins
as for line application. Rewire the selected TX and RX pairs to exchange
their TX pairs with RX pair position. This procedure is required since SILC
cards are designed for applications in the NT mode.
End of Procedure
Содержание Communication Server 1000M
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