LT-655 Rev. 5 September 2012 Page 1 of 2
DM-1008A
8 Detection Adder Module
Installation Instructions
Module Mounting Locations
The DM-1008A Hardware Detection Adder Module provides eight fire alarm initiating circuits. Refer to Figure 1 below for
mounting locations.
Figure 1: Module Mounting Locations
Note: Only the last circuit adder module should have a jumper plug on its continuity jumper; all others must be
left without a jumper plug.
Notes:
1. Front plate is not shown.
2. Reserved for PR-300 or UDACT-300A.
3. Other circuit adder modules may be:
• DM-1008A Detection Circuit Adder Module
• SGM-1004A Signal Circuit Adder Module
• RM-1008A Relay Circuit Adder Module
• FNC-2000 Network Controller Module
• ALCN-792M Loop Adder Module
MAIN CHASSIS EXAMPLE
(SEE NOTE 1)
DM-1008A AND
OTHER CIRCUIT
ADDER MODULES
(SEE NOTE 3)
#6-32 X 1 1/2”
M/F HEX SPACER
DM-1008A AND
OTHER CIRCUIT
ADDER MODULES
(SEE NOTE 3)
PR-300 CITY TIE MODULE
(SEE NOTE 2)
#6-32 X 1 1/4”
SCREW
UDACT-300A
DIALER MODULE
(SEE NOTE 2)
LT-655 Rev. 5 September 2012 Page 2 of 2
Terminal and Jumper Locations
Figure 2: DM-1008A 8 Detection Adder Module
JW1: Install jumper for Class A (Style D) operation of initiating circuits 1 and 2.
JW2: Install jumper for Class A (Style D) operation of initiating circuits 3 and 4.
JW3: Install jumper for Class A (Style D) operation of initiating circuits 5 and 6.
JW4: Install jumper for Class A (Style D) operation of initiating circuits 7 and 8.
JW5: If and only if this module is the last in a chain of conventional adder modules, short this jumper. Otherwise this
jumper must remain open.
Note: Refer to operating manual of the Fire Alarm Panel for complete and specific details regarding mounting,
function selection and wiring.
P1
P3
P4
FI ELD WI RI N G TERM I N ALS
P2
JW 5
JW 4
JW 3
JW 2
JW 1
Data cable to P6 or P5 of
main fire alarm module or to
P13 or P12 of hardwire
loop controller module, or
previous adder module
Power connector to P8 of
main fire alarm module,
or to P2 of hardwire loop
controller module, or to
previous adder module
Dat a co nn e cto r for
next adder module
Power con nector for
next adder module
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