Fire-Lite LDM-32F Lamp Drivers - Manual (Page 10)

1. Introduction Features
10
LDM-32F PN 50055:C 03/20/01
Features
LDM-32F
The Lamp Driver Module LDM-32F has 32 alarm lamp/LED driver outputs
which sink current to system common (–) on activation. A single positive (+)
voltage is required to supply total operating power for all lamps or LEDs when
all drivers are activated. The LDM-32F provides a separate driver for system
trouble and inputs for a local lamp test switch. A maximum of 16 external
control switches may be wired to the LDM-32F. DIP switch SW3 is used to
enable or disable the onboard piezo, enable remote switch functions, select a
flashing LED function for new alarms and troubles, and other functions.
Switch SW4 is used to configure the module to annunciate 32 alarms or 16
troubles. A green
ON LINE
LED flashes to indicate ongoing communications
with the host FACP. One LDM-32F supports up to 3 LDM-E32F modules. The
LDM-32F is supplied with 4 standoffs and screws for mounting to a CHS-4L
chassis or custom backbox.
Figure 1 LDM-32F
J10
J9
J2
LAMP
POWER
SWITCH
MATRIX
KEYSWITCH
ON LINE
J11
J5 J6 J7 J8
J4
J1
SW1
SW2
SW3
SW4
TB2
TB1
2
2
3
3
4
4
5
6
7
1
1
Not Used
Lamp Power
(+24 VDC)
System Trouble
Ribbon Cable
Connection to
LDM-E32F
Indicates EIA-485
Communication
Active
Output Connectors
for Wiring to LEDs
Lamp Power
(+5 VDC)
Security Key
Switch Terminal
Control Switch
Terminal
Address
Switches
Programming
DIP Switch
Alarm or
Alarm/Trouble
Slide Switch
EIA-485
Terminal
24 VDC
Power
Terminal
LD
M
-32F
.cdr