SMS SenTRI, Data And Installation Instructions, Page: 42 / 52

Interface Module for
SenTRI Medium Voltage
(MV) Output
These instructions cover the above interface options and
accessories.
These SenTRI Single Output Interfaces are designed for use with
any SenTRI fire alarm control panel. Each module includes loop
isolators for device isolation.
The SenTRI Single Output Interfaces are suitable for mains
switching, they provide normally closed and normally open
contacts rated at 13A 250Vac (nominal 230Vac) resistive load.
The SenTRI interfaces use one of 127 available device
addresses on a loop and respond to regular polls from the control
panel reporting the type of device.
Features
¨
Analogue addressable communications
¨
Built-in type identification automatically identifies
these devices to the control panel
¨
Reliable communication technique with high noise
immunity
¨
Soft or SAFE addressing
¨
Common mounting options including surface mount
and DIN rail mount
¨
EN54-17:2005 and EN54-18:2005
Cables
Any suitably rated cable may be used for wiring the output lines
to drive the required load. For information on cables
recommended for wiring the loop circuits see instructions
supplied with the fire control panel.
Installation
The SenTRI Single Output Interface module can be mounted in
other equipment housing using a DIN rail (491).
The SenTRI Single Output Interface is available in a metal box
(SEN-415). The box provides cable termination points on the
enclosure.
Wiring
The loop cable screen must be continued through each interface
module.
If a module is mounted on a DIN rail, then the DIN rail must be
electrically connected to the loop cable screen.
Installation instructions
42
SEN-INT-ACDIN
Single Output Interface Module
DIN rail mountable
(Medium Voltage)
SEN-491
Single Output Interface PCB with cover
(Medium Voltage) in a metal box
Hook and Push
to lock onto DIN
Rail
DIN Rail
Connect to loop
cable screen
Earth
Loop 0V
Loop L2+
Earth
Loop 0V
Loop L1+
NC
COM
NO
OUTPUT