MKT. #8830008- REV A-3
04/13
PRINTED IN USA
PAGE 1 OF 2
DCM-4
Dual ContaCt MoDule
Potter Electric Signal Company, LLC • St. Louis, MO • Cust Service: 866-240-1870 • Tech Support: 866-956-1211 • Canada: 888-882-1833
• www.pottersignal.com
All terminals are power limited and should be wired in accordance
with the requirements of NFPA 70 (NEC) and NFPA 72 (National Fire
Alarm Code). Failure to follow the wiring diagrams in the following
pages will cause the system to not operate as intended. For further
information, refer to the control panel installation instructions.
For more information, refer to a compatible fire panel installation.
Operation and Programming Manual.
Description
The Dual Contact Module, DCM-4 is used to supervise multiple
contact points with unique addresses from a single device. In addition,
the DCM-4 may be configured as a single contact utilizing Class A
wiring methods.
The DCM-4 is fully supervised if wired in accordance with the wiring
diagrams below. Normally closed contact monitoring is not UL listed.
The DCM-4 employs one red LED to indicate the status. In normal
condition, the LED flashes. When the contact is activated, the LED
will turn on constantly. In case of open circuit, the LED will turn off.
If the conditions of two contacts are different from each other with
two contacts supervising, the LED shall activate with higher priority
condition. The highest priority of contact condition is activated
condition of contact, the middle priority is open circuit, and the lowest
priority is normal condition.
Since the system allows a maximum of 13 LEDs to activate constantly,
if system already has 13 LEDs active on devices, DCM-4 will not turn
on the LED and keep flashing even if the contacts of DCM-4 are in the
active state.
Setting the Address
Each addressable module, smoke sensor, heat detector and
combination sensor/detector must have the address set before
connecting the device to the SLC loop. The address is set using the
hand held device programmer or the addressing feature on the control
panel.
Before connecting a device to the SLC loop, take the following
precautions to prevent potential damage to SLC or device. Verify the
following:
1.
Power to the device is removed
2.
Field wiring is correctly installed.
3.
Field wiring has no open or short circuits.
Document discrepancies and notify appropriate personnel.
A dedicated address number is configured per the DCM-4 module
prior to connecting the module to SLC loop. When DCM-4 is used for
two contacts supervising, two addresses are assigned. When the first
address number is assigned by address setting unit, the second address
number shall be assigned automatically with adding one (1) to first
address number. For example, if the first address number is assigned as
“2”, the second address number shall be assigned as “3” automatically.
Product includes a 5 year warranty
S2930 7165-0328:0196
Features
•
Single contact module with dual inputs
•
Two (2) Class B and one (1) Class A input module
•
SLC Class A (Style 6, 7) & Class B (Style 4)
•
IDC wiring may be Class B (Style B) or Class A (Style D)
•
All connections are power limited
•
Wiring for all connections is supervised
•
Terminals accept 14 to 22 AWG wire
•
Mounts in 4” square box with terminals accessible
•
Temperature range of 32°F–120°F
•
Maximum loop current draw of 325 μA
Note: This addressable module does not support 2-wire smoke
detectors
