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Also keep each VC-2402 system site free of dust and other pollutant that could
affect system performance. In addition, be sure to maintain the environment
conditions at the central office and at each remote system site. The ideal operating
temperature is about 20°C. The following is the acceptable operating condition
range:
-40°C to 65°C and 5% to 95% humidity at 35°C (using DC power, Model: VC-
ó
2402-48)
0°C to 50°C and 5% to 95% humidity at 35°C (using AC power, Model: VC-
ó
2402)
2.2 Powering the VC-2402 Up or Down
This section describes how to power up the DSLAM and how to power down the
DSLAM.
Procedures of Powering Up the DSLAM
Step
1
Put on the antistatic wrist strap and connect it to a grounding point.
2
Ensure that the DSLAM is securely installed.
Ensure that the DSLAM ground strap is connected to a suitable ground
3
point.
4
Ensure that –48 Vdc power is being supplied to the DSLAM.
Ensure that the POTS lines, subscriber lines, and alarm equipment are
5
connected.
Wait for a minute, and then check the LEDs on the DSLAM. If the LEDs
6
show some problem, refer to section 3.2 for information on how to
resolve problems indicated through LEDs.
Procedures of Powering Down the DSLAM
Step
1
Put on the antistatic wrist strap and connect it to a grounding point.
2
Powering down the DSLAM stops DSL service to subscribers. POTS
service is not affected.
Caution
2
Action
Action
Disconnect power connection.
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