Paradyne manual Model 3551 DSU Installation and Circuit Pack Lock

COMSPHERE 3550 Series Data Service Units

4.Using a Phillips screwdriver, loosen the screw holding the circuit pack lock and rotate the lock to the open position (Figure 3-3). Open the latch.

5.At the front of the carrier, hold the DSU vertically with the latch on its faceplate in the open position. Then, insert the circuit card into the top and bottom circuit card guides for the slot that contains the rear connector plate.

Slide the DSU into the slot, aligning the circuit card with the rear connector plate until the connectors seat firmly into the back of the carrier. Press the faceplate latch to secure the DSU into the carrier, rotate the circuit pack lock into the closed position (Figure 3-3), and tighten the screw.

6.Return to the rear of the carrier and tighten the rear connector plate screw.

Figure 3-3. Model 3551 DSU Installation and Circuit Pack Lock

3-6 December 1996 3550-A2-GB20-20