Nortel Networks 1000M Power failure transfer control, AC power control, DC power observation

Page 152 of 456 Configuring the system monitor

Figure 62

System monitor to system monitor serial link cabling

Column 0		Column 1		Column n
Master XSM		Slave XSM		Slave XSM
J5	J6	J5	J6	J5	J6
	Pedestal		Pedestal		Pedestal
					n=63 maximum
NT8D46AL		NT8D46AP			553-7551

Power failure transfer control

The system monitor can be cabled to the MDF to provide power failure transfer control or additional alarms. The cable used is the NT8D46BH, EH, or DH and it is plugged into J3 on the system monitor. With the same J3 connector, the system monitor can be used with a variety of cables.

AC power control

The system monitor can also monitor and control an AC-powered UPS. Connector J4 is used for this interface. Three cables are available for connecting to a UPS: NT8D46AQ, NT8D46AJ, and NT8D46AU.

DC power observation

The system monitor can also work with DC power supplies. A J4 connector

monitors the rectifiers. Cable requirements depend on the battery distribution box in use. With the Candeo power system, a NT8D46xx cable interfaces from the connector J4 of the Large System's system monitor to the Candeo's System Manager alarm output ports. Refer to “Alarm interfacing to Candeo” on page 165 for additional information.

NN43021-310 Standard 02.01 December 2007