Model 3611 DSU Installation
This section includes the installation procedures for the
Model 3611 DSU (non-modular) and the Modular 3611
DSU. These procedures assume that the carrier has been
installed properly and is operational.
If it is necessary to change from the PSTN connection,
Test Mode Indication, and Alarm Monitoring default
settings, make the appropriate changes before installing
the DSU circuit card in the carrier, as described in the
Hardware Straps
section of this chapter.
Refer to the appropriate section for the type of 3611
DSU you are installing.
Figure 3-3. Model 3611 DSU Installation and Circuit Pack Lock
3610-A2-GB91-90
Installing a Non-Modular 3611 DSU
To install a non-modular 3611 DSU in the
COMSPHERE 3000 Series Carrier:
"
Procedure
1. Use a Phillips screwdriver to loosen the screw
holding the circuit pack lock, and rotate the lock
to the open position (Figure 3-3).
2. At the front of the carrier, hold the DSU circuit
card vertically, with the latch on its faceplate in
the open position, and insert it into the top and
bottom card guides of one of the slots numbered
1 through 16 (Figure 3-3). Slide the circuit card
into the slot until the power and network
connector seats firmly in the mating connector on
the backplane.
July 1999
Model 3611 Installation
3-5