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Installation 15088:K 3/21/01
Section 6.3 Supervising an Uninterruptable Power Supply
All connections are supervised and power limited. The MMX-1 Software Type ID "MTRB" may be used to moni-
tor either normally closed or normally open supervisory contacts, as illustrated in Figure 6.3-1(A). An open or a
short condition on the circuit will produce the message "POINT TROUBLE" on the display.
Figure 6.3-1(B) depicts the MMX-1 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.
MMX-1
Type ID
"MTRB"
Do not break tabs!
SLC Loop
+ -
Uninterruptable Power Supply UL
Listed for Fire Protective Signaling with
normally closed supervisory contacts
SLC Loop
+ -
MMX-1
Type ID
"MTRB"
Do not break tabs!
ELR 47K, 1/2-watt
Part Number A2143-00
Uninterruptable Power Supply UL
Listed for Fire Protective Signaling
with normally open supervisory
contacts.
Figure 6.3-1 Uninterruptable Power Supply
B
A
Type ID "MTRB"
Type ID "MTRB"
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