Fire-Lite LDM-32F, Instruction Manual

Page: 34 / 64

Appendix A: Sensiscan 2000 Power Supply Connection
34
LDM-32F PN 50055:C 03/20/01
Power Supply Connection
The LDMs may be powered by an MPS-24AF or an MPS-24BF. The power
run to the LDMs need not contain a Power Supervision Relay since loss of
power is inherently supervised.
MPS-24AF Main Power Supply
Connect the power run for the LDMs to MPS-24AF TB3, Terminals 1 (+)
and 2 (–). Maximum current is 1 amp.
Figure 21 MPS-24AF Power Supply Connections
MPS-24BF Main Power Supply
Connect the power run for the LDMs to MPS-24BF TB2, Terminals 1 (+)
and 2 (–). No more than 200 mA current can be drawn from these terminals
in standby or alarm.
Figure 22 MPS-24BF Power Supply Connections
EIA-485 Connection
The EIA-485 bus that communicates with the LDM must be connected to the
CPU as illustrated below.
Note: The CPU must be Revision D or greater. (The revision level of the CPU is marked
on a label affixed to the upper board.)
Figure 23 EIA-485 Connection to CPU
P4
P3
TB2
P5
R27
P2
+24 R COMM ON +24 COMMON
POWER LIMITED
BAT + BAT -
To LDM-32F TB1
Common In (–) To LDM-32F TB1
Power In (+)
LD
M
32F
-mp
s24af.cd
r
P3
TB3
TB2
6 7 8
CO MMON CO MMON
BATT -
+24 VRESET +24 VPOW ER BATT +
1 2 3 4 1 2
LD
M
32F-
m
ps2
4bf.cd
r
To LDM-32F TB1
Common In (–)
To LDM-32F TB1
Power In (+)
EIA-485
To TB2 In (–)
EIA-485
To TB2 In (+)
Sensiscan 2000 CPU
LD
M
32F
-s200
0.cdr