Mount The Ntak20 Daughterboard On The Ntrb21 - Nortel Meridian 1 Option 11C Manual

Page 20 of 100 PRI Implementation

Mount the NTAK20 daughterboard on the NTRB21

553-3011-310 Standard 13.00
3 Disable the NTRB21 TMDI card using the following overlay and
commands:
LD 96 DIS TMDI x
where x is the NTRB21 TMDI card number (DLOP). The card number
associated with a NTRB21 TMDI card is based on the slot in which the
card is installed.
4 Hold the NTRB21 by the lock latch, unlock the latch and slide the card
out from the cabinet.
Mount the NTAK20 daughterboard on the NTRB21. Work on a flat surface
when mounting or removing daughterboards.
1 Visually inspect the connector pins on the underside of the
daughterboard. Any pins that are bent should be re-aligned prior to
mounting.
2 Place the NTRB21 down flat on an anti-static pad.
3 From an overhead viewpoint, with the daughterboard parallel above the
NTRB21 and the connector pins aligned over the connector sockets, line
up the mounting holes on the daughterboard (Figure 3) with the tops of
the standoffs on the NTRB21.
4 Slowly lower the daughterboard towards the NTRB21, keeping the
standoffs in line with all four holes, until the holes are resting on the tops
of the four standoffs.
If more than a very slight amount of pressure is required at this point, the
connector pins may not be aligned with the connector socket. If so, lift
the daughterboard off the NTRB21 and return to step 2.
5 Gently apply pressure along the edge of the board where the connector is
located until the standoffs at the two corners adjacent to the connector
snap into a locked position. Then press down on the two corners on the
opposite side until they also are locked into place.
January 2002