Configuring and Installing the DSUs2-8 7511-A2-GB20-00June 1997Installing the DSU Card ProcedureTo install the DSU card:1. Using a Phillips screwdriver, loosen the screw holding the circuit pack lock.Rotate the lock to the open position and open the latch.CircuitCardGuidesCircuitPackLockLatchOpen(Unlocked)Closed(Locked)495-148132. At the front of the carrier, hold the circuit card vertically with the latch on itsfaceplate in the open position. Then insert the circuit card into the top andbottom circuit card guides.