Potter NOHMI SCM-4 Manual

S2930 7165-0328:0196
Product includes a 5 year warranty
Description
The SCM-4 module is used to monitor the contact status of a device
that contains a Normally-open contact (i.e, pull station, waterflow
switch, etc). When the contact is closed, the SCM-4 reports its
condition to FACP. SCM-4 supervises an open circuit of wiring
connected to the terminal C and NO.
SCM-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.
Since the system allows maximum 13 LEDs to turn on constantly, if
system already has 13 LEDs active, SCM-4 will not turn on the LED
and keep flashing even if the contact of SCM-4 is activated.
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
PRINTED IN USA
Features
• For connection with Dry Contact devices (i.e, pull stations,
waterflow switchs, etc)
• SLC Class A (Style 6, 7) & Class B (Style 4) wiring
• IDC NFPA Class B (Style B) wiring
• All wiring is power limited
• 100 ohms from module to EOLR
• All wiring is supervised
• All wiring is between #14 (max.) and #22 (min.) AWG
• Maximum standby and alarm current, 325 µA
Note: This addressable module does not support 2-wire smoke
detectors.
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 control panel manual.
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.
MKT. #8830006 - REV C
04/13
SCM-4
Single ContaCt Module
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