Power Requirements - Avaya Nortel Communication Server 1000 Reference

Table 228: Switch SW2
Cable Type
120 ohms
Switch SW3 - Clock Controller Configuration
This switch enables/disables (H/W) the on-board Clock Controller. Disable the SW 3-2 if the
on-board clock controller is not in use.
Table 229: Switch SW3
Switch
SW 3-1
SW 3-2
Switch SW4 - Carrier Shield Grounding
This switch enables for the selective grounding of the Tx / Rx pairs of the carrier cable. The
switch should be kept off(up).
Table 230: Switch SW4
SW 4-1
SW 4-2
The usual method is to ground the outer conductor of the receive coaxial signal.

Power requirements

The NTAK79 obtains its power from the backplane, drawing maximums of 2 A on +5 V, 50 mA
on +12 V and 50 mA on –12 V.
Environment
The NTAK79 meets all applicable Nortel Network's operating specifications.
Circuit Card Reference
SW 2-1
Up (Off)
Down (On)
—
Disabled
Switch
Down (On)
Up (Off)
— Spare
Enabled
Up (Off)
Rx – OPEN
Tx – OPEN
Physical description
SW 2-2
Note
July 2011 525