Nortel DMS-100 Series Maintenance Manual page 591

At Bay 1 of the OPAC:
5
Open the front cover of the MSP by pulling outward firmly at the finger holes
provided and swing the cover down to the open position.
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6 The circuit breaker designation may vary. Verify the circuit breaker designation,
front and rear of MSP, before replacing the talk battery module.
7 Turn OFF the associated circuit breaker in slot 10 (circuit breaker 02) if
replacing the talk battery module in slots 1 and 2. Turn OFF the associated
circuit breaker at slot 11 (circuit breaker 04) if replacing the talk battery module
in slots 3 and 4.
WARNING
Risk of injury from high energy levels, static electricity
damage
Wear a wrist strap and connect it to a wrist strap
grounding point. This protects the equipment from
damage caused by static electricity. A wrist strap
grounding point is located at the top of each frame
near the hinge.
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DMS-100 Family OPAC Maintenance Manual XPM12 and up
Card replacement procedures 8-225
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MSP
(continued)
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