APC InfraStruXure Power Supply - Manual (Page 25)

InfraStruXure Site Planning, Installation, Start-Up 17
Connect User Contact Inputs and Output
Relays to the User Connection Plate
Overview
Make contact closure connections (NO
or NC) at the user connection plate to
monitor dry contacts. You can make
eight connections—four contact inputs
and four output relays.
The figure at the right shows the location
of the user connection plate on the roof
of the PDU enclosure.
You can make connections from inside
the enclosure, or you can remove the
user connection plate and make your
connections.
Remove the plate using a Phillips or
standard screw driver to loosen the two
captive screws. Use the knockout in the
plate to route cables to and from the user
connections on the plate. If you remove
the plate, make sure that you do not
disturb the existing connections.
Output relay specifications
Nominal switching capacity: 1A at 30VDC
Maximum switching power: 30W
Maximum switching voltage: 60VDC
Maximum switching current: 2ADC
Maximum carrying current: 2ADC
Surge ratings: 2kV per Bellcore TA-NWT-001089
1.5kV per FCC part 68
1 2 3 4
AT
S E
N
AT
S 0 AT S 1
AT
S 2 EPO Contact
– + EPO 24V AC/DC Contact Inputs Contact Outputs
USER INTERFACE © 2001 APC MADE IN USA