Installation manual

COMSPHERE 3000 Series Carrier
5-6 March 2001 3000-A2-GA31-F0
Modular Circuit Card
Installation
NOTE
For a DSU with TDM or MCMP,
there are two circuit cards with
two faceplates that are physically
attached. These occupy two slots
in the carrier, but are installed as
one unit.
" Procedure
1. Using a Phillips screwdriver, loosen the screw
holding the circuit pack lock. For a DSU with
TDM or MCMP, there are two circuit pack locks.
Rotate the lock to the open position and open the
latch(es).
Circuit
Card
Guides
Circuit
Pack
Lock
Latch
Open
(Unlocked)
Closed
(Locked)
495-14813
2. At the front of the carrier, hold the circuit card
vertically with the latch on its faceplate in the
open position. Then, insert the circuit card into the
top and bottom circuit card guides.
495-14797
3. Slide the circuit card into the slot. Align the rear
connector plate, until the connectors seat firmly
into the back of the carrier.
4. Press the faceplate latch(es) to secure the circuit
card into the rear connector plate.
5. Rotate the circuit pack lock(s) into the closed
position, and tighten the screw.
6. If power is applied to the carrier:
— The unit performs a self-test routine.
— After several seconds, the circuit card
completes its power-up self-test in which all
LEDs light.