architecture - engineering - construction
Honeywell Inc.
74-2696: Off Premises Signaling Module 3-OPS. CSI 3-Part Specifications. Large file (>500kB).

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Off Premises Signaling Module
3-OPS

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SPECIFICATION DATA |

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FEATURES
- Reverse Polarity Outputs for Alarm Supervisory and Trouble
- Municipal Circuit Operation
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GENERAL
The Off Premises Signaling module (3-OPS) is a local rail module in the Excel Life Safety system. The 3-OPS can be configured for old or new styles of reverse polarity
central station operation. Removable field wiring terminals on the 3-OPS module facilitate troubleshooting and servicing of field wiring. In addition, any Control Display
module can mount to the front of an 3-OPS module. |
OPERATION
The 3-OPS Module supports three off premises signaling modes of
operation as follows:
— The new style reverse polarity (Fig. 1) allows the 3-OPS module to
output three independent reversing polarity signals: alarm,
supervisory, and trouble. In each case, an active condition causes
the terminal output voltage to reverse. If the central station detects a
loss of voltage, the condition is due to a line failure. When configured
for new style reverse polarity operation, the 3-OPS Module supports
a set of form ‘C’ trouble relay contacts.
— The old style reverse polarity operation (Fig. 2) has only the alarm relay
active. In the normal state, the alarm output is 24V dc current limited
to 6 mA. In the alarm state, the polarity reverses. If the panel goes
into trouble from the normal state, the 3-OPS module removes the
voltage from the output terminals and the central station detects a
trouble. Alarms always have priority over trouble conditions. Trouble
relay contacts must be configured for n.c. operation.
— The 3-OPS module can support a municipal, city-tie connection and
provides a terminal for a local energy master fire alarm box (Fig. 3).
The 3-OPS module interfaces to a 14-ohm coil and supervises the
city-tie connection for open conditions. In this application, trouble
relay contacts are configurable for n.o. or n.c. operation.
SPECIFICATIONS
Model:
- 3-OPS Off Premises Signaling Module mounts on one local rail module
space.
Shipping Weight:
0.59 lb (0.27 kg)
Terminal Wire Sizes:
18 to 12 AWG (0.8 mm 2 to 3.3 mm 2 )
Trouble Relay:
Normally open or normally closed 24 Vdc @ 1A
Agency Listing:
UL, ULC |
Electrical Characteristics:
Configuration |
Standby
Current (mA) |
Alarm
Current (mA) |
New Style Reverse
Polarity |
53 |
147 |
Old Style Reverse
Polarity |
53 |
147 |
Municipal City-Tie
Connection |
53 |
147 |



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Honeywell Inc.
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Sunrise, FL 33325 |
Home Building Control
Honeywell Limited - Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 3N7
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3 Avenue du Bourget
B-1140 Brussels
Belgium |
Honeywell Asia Pacific Inc.
Room 3213-3225
Sun Hung Kai Centre
No. 30 Harbour Road
Wanchai
Hong Kong |
74-2696 L.A. 1-97 |
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