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4.1.3 Alarm Outputs In addition to the AS 400 alarm outputs the Interface Board also
contains a number of relays whose contact provide a set of volt-free
alarm outputs that are connected to terminal block X4-as shown in
figure 4-1. These outputs can be used to drive an external alarms
monitoring device. Maximum contact rating on Ml terminals = 50 Vcc
@ 1 Amp.
Note: When using the above contacts for remote alarm annunciation, the
power supply for the remote indicators must be provided from an external
power source. Under no circumstances should the UPS internal low
voltage supplies be used for this purpose.
4.1.4 X2 Extension The X2 connection on the board is provided to interface the UPS
systems with the Remote Alarms Board #100201120007, which
contains additional alarms or with 3 x AS400 Board #100201120008
as shown in figure 4-2 below.
X2X1
# 100 201 120 003
(4590055P)
ALARM INTERFACE BOARD
from
UPS Logic Board
# 100 201 120 007
Remote Alarm Interface Board
# 100 201 120 008
3 x AS400 Board
O R
Single Module and 1+N Parallel System
Figure 4-2:Output for AS400 Alarm Interface Board # 100 201 120 003
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