Johnson Controls IFC-1010 Technical Manual page 128

Supervising an
Uninterruptable
Power Supply
SLC Loop
SLC Loop
128 Hardware Installation—Installing the IFC-1010/2020
All connections are supervised and power limited. The M500MJ software
Type ID MTRB may be used to monitor either normally closed or
normally open supervisory contacts, as illustrated in Figure 91. An open
or a short condition on the circuit will produce the message POINT
TROUBLE on the display.
Figure 91 depicts the M500MJ software Type ID MTRB used to monitor
supervising the normally closed contacts of an uninterruptable power
supply with a CRT-2 terminal.
Note: The CRT-2 must be Revision H or higher.
9
M500MJ
or
1
8
M501MJ
2
or
7
M502MJ
3
6
Type "MTRB"
4
5
Do Not Break Off Tabs!
9
M500MJ
or
1
8
M501MJ
2
or
7
M502MJ
3
6
Type "MTRB"
4
5
Do Not Break Off Tabs!
DB-25
Uninterruptable Power Supply
UPS
UL Listed for Fire Protective Signaling with
normally closed supervisory contacts.
Figure 91: Uninterruptable Power Supply
ELR 47K, 1/2W
Part Number A2143-00
(N-ELR in Canada)
CRT-2 AUX PORT
4 3
20
Uninterruptible
Power Supply
UL Listed for
Fire Protective Signaling
with nomally closed
supervisory contacts.
Normally Closed Contact Supervision
Uninterruptible
Power Supply
UL Listed for
Fire Protective Signaling
with nomally open
supervisory contacts.
Normally O pen C ontact Supervision
Note: When contact state changes,
it inhibits answerback.
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