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Powering the Model 3124 Up or Down 44
Model 3124 User Manual 4 • Operation and Maintenance
Powering the Model 3124 Up or Down
This section describes how to power up the DSLAM and how to power down the DSLAM.
Powering Up the DSLAM
1. Put on the antistatic wrist strap and connect it to a grounding point.
2. Ensure that the DSLAM is securely installed.
3. Ensure that the DSLAM ground strap is connected to a suitable ground point.
4. Ensure that –48 Vdc power is being supplied to the DSLAM. If you use AC power, ensure the AC power
is being supply.
5. Ensure that the POTS lines, subscriber lines, and alarm equipment are connected.
6. Wait for a minute, and then check the LEDs on the DSLAM. If the LEDs show some problem, refer to
“Resolving Problems Indicated Through LEDs” on page 48 for information on how to resolve problems
indicated through LEDs.
Powering Down the DSLAM
1. Put on the antistatic wrist strap and connect it to a grounding point.
2. Disconnect the AC power cord from the AC supply socket on the front panel.
Controls and LED Indication
The Model 3124 has simple controls and indicators on its front panel. The indicators show the current operat-
ing states of various system elements and serve as maintenance aids for local technicians at each site. The
remaining controls on the cards are also provided for local system testing and maintenance.
Powering down the DSLAM stops DSL service to subscrib-
ers. POTS service is not affected.
CAUTION