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50 Install an E1/T1 card and daughterboards
Install NTBK51AA and NTAK93AB daughterboards
You can install the NTBK51AA or the NTAK93AB, and the E1/T1 card in any
order. However, PRI, PRI2 and DPNSS/DASS loops (LD 17) in the PRI
Gateway must be configured in software before the DCH links are defined
(in LD 17).
Follow the steps in
daughterboards on an E1/T1 card" (page
Procedure 4
Installing NTBK51AA and the NTAK93AB daughterboards on an E1/T1 card
Step
1
2
3
4
Media Gateway 1000E PRI Gateway Installation and Commissioning
Copyright © 2007, Nortel Networks
.
Procedure 4 "Installing NTBK51AA and the NTAK93AB
Note: The only version of the NTBK51AA daughterboard that can be
used on a PRI Gateway is the NTBK51AA daughterboard supporting
two E1/T1 spans. Vintage NTBK51BA cannot be used, due to a different
pin configuration (the NTBK51BA is used on OPT11 systems that
support only one span). The NTAK93AB DCHI daughterboard supports
only one E1 span.
CAUTION
You must wear the static discharge bracelet located inside the
cabinet before you handle circuit cards. Failure to wear the
bracelet can result in damage to the circuit cards.
Action
Unpack and inspect the DCH daughterboards.
Each daughterboard comes with four standoffs for mounting the
daughterboard on the E1/T1 card.
Note: If you are installing a DCH daughterboard on the lower
side (lower left or lower right) of the E1/T1 card, use the standoffs
that come with the DCH daughterboard.
If you are installing a DCH daughterboard on the upper side
(upper right or upper left) of the E1/T1 card, use the standoffs
that come with the E1/T1 package.
Align the standoffs on the daughterboard with the mounting holes
on the E1/T1 card.
Make sure the daughterboard is mounted to the appropriate socket
in the E1/T1 card and matched with the configured spans (either
upper left, upper right, lower left, or lower right). If a DCH is present,
the LED marked DCH lights up.
Enable the PRI (LD 60) or DPNSS/DASS loop (LD 75).
Enable the DCH interface (LD 96 for PRI or LD 75 for DPNSS/DASS).
Nortel Communication Server 1000
NN43041-311 01.01 Standard
Release 5.0 30 May 2007
50).
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