Nortel Networks 1000M warranty Procedure Turning DC power on, System Failure

Powering up the system and initial loading Page 307 of 456

Procedure 54

Turning DC power ON

1Connect each DC rectifier to its associated AC outlet and set the breakers in the AC power panel to ON.

2Turn the rectifiers ON one at a time. Wait 10 seconds between each rectifier.

CAUTION

System Failure

If a problem occurs in any of the following steps, resolve that problem before continuing.

IMPORTANT!

Perform the following tasks for each column

Note: Power up the Core columns last.

3On the DC power source for each column, replace the distribution fuses or set the distribution breakers to ON. Do the Core columns last.

4Set the blower unit breaker switch ON (the far left breaker in the rear of the pedestal).

5Set the blower unit switch in the front of the pedestal to ON. Verify that the fan is running. On initial power-up, the blower rotates slowly. As the system heats up, the cooling fans turn faster.

6Set the power supply switch in each module to ON. The green light will turn on after a few seconds.

Note: If the module is equipped with a ringing generator, set the breakers or switches for both the power supply and the ringing generator to ON. The green LED on a ringing generator normally takes up to 90 seconds to light.

7Repeat step 1 through step 5 for each column in the system. Start with Column 2 and continue until power is turned on in all the columns. Do the Core columns last.

Communication Server 1000M and Meridian 1 Large System Installation and Commissioning