TX7232 Base Mount Short Circuit Isolator
Installation & Operation Manual
4050100390 -Rev1.0-0717
TANDA UK
Specifications are subject to change without prior notice
4
1 Introduction
1.1 Overview
The TX7232 manufactured base on the requirement of EN 54 part 17, European Standard. In the
event of short circuit on the detection loop the TX7232 Isolators either side of the loop will detect the
problem and open circuit and isolates the faulty part of the loop, enabling other devices on the
unaffected part of the loop to operate normally. The isolator will continue to monitor for the fault to
be repaired, once the fault is cleared the isolator will automatically reinstate the effected part of the
loop.
The unit is aesthetically pleasing with unobtrusive design that will complement modern building
designs and its plug-in type assembles make installation and maintenance more convenient to the
installer. The TX7232 Isolator is compatible to the TX7004 Analogue Intelligent Fire Alarm Control Panel,
produced by single manufacture T&A, to avoid addressable communication compatibility problem.
1.2 Feature and Benefits
EN54-17 Compliance
In the event of a short circuit isolates faulty parts of the loop.
Automatically resetting once the fault has cleared
Can monitor up to 70 devices
LED status indicator
Loop powered device
Aesthetically pleasing design
A detector can be mounted directly above the isolator
1.3 Technical Specification
Listed
LPCB Pending
Compliance
EN54-17
Input Voltage
24VDC [16V to 28V]
Current Consumption
Standby :
≤
0.15mA, Alarm:
≤
2mA
Protocol
T&A
Number of monitored
Max 70 Devices
Output Impedance
480 mΩ
Indicator Status
Normal: Single blink/Active: Steady-on
Material / Colour
ABS / White Glossy finishing
Dimension / LWH
Diameter 100.7mm, Thickness 34mm
Weight
108g (with Cover), 91g (without Cover)
Humidity
0 to 95% Relative Humidity, Non condensing