Nortel Meridian 1 Replacement Manual page 23

Before you connect cables to the backplane, visually inspect the backplane
shroud connectors to make sure there are no bent pins. To connect cables:
1 Orient the cable connector so the strain relief paddle is to the right.
2 Partially insert the cable connector so its guides mate to the
corresponding backplane connector.
3 Apply a small amount of pressure to push the cable connector straight
into the backplane connector. You will feel a detent click when the
connector seats.
Pins may be bent or broken if you try to insert the cable connector at
an angle. Do not push the connector in any further after you hear the
detent click.
Hardware replacement guidelines
CAUTION
Page 23 of 362
Hardware replacement