Nortel Networks NN43001-301 manual Procedure Removing the daughterboards from the NTAK09

Install PRI hardware 207

sockets, align the mounting holes on the daughterboard (Figure 79 "Daughterboard installation on the NTAK09" (page 208)) with the tops of the standoffs on the NTAK09.

4Slowly lower the daughterboard toward the NTAK09, keeping the standoffs in line with all four holes, until the holes rest on top of the four standoffs.

Note: If more than a very slight amount of pressure is required at this point, the connector pins are not aligned with the connector socket. If so, lift the daughterboard off the NTAK09 and return to step 2.

5Gently 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.

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Use these guidelines to remove the NTAK20 Clock Controller (CC) and the NTAK93 DCHI or NTBK51 DDCH daughterboards from the NTAK09 DTI/PRI card. Because of the physical layout of the mother and daughterboards, the NTAK20 should be removed before the NTAK93 or NTBK51.

Procedure 28

Removing the daughterboards from the NTAK09

Step Action

1Starting at the two corners opposite the connector, gently lift each corner out of the locking groove of the standoff.

2At the two corners adjacent to the connector, gently lift the entire side until the mounting holes are clear of the locking groove of the standoff.

3To remove the connector pins, grasp the edge of the board adjacent to the connector and lift gently.

If more than one NTAK09 card is installed, the additional cards might not carry daughterboards, depending on the system configuration. At least one NTAK20 (per system) is always required.

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Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

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