TX7230 Isolator Module
Installation & Operation Manual
4050100319-Rev1.6-0916
TANDA UK
Specifications are subject to change without prior notice
4
1 Introduction
1.1 Overview
The TX7230 manufactured base on the requirement of EN 54 part 17, European Standard. In the
event of short circuit on the detection loop the TX7230 Isolators either side of the loop will detect the
problem and open circuit and isolates the faulty part of the loop, enabling other devises on the
unaffected part of the loop to operate normally. The module 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 TX7230 Isolators Module 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
Surface mounting with fix base for simple installation
1.3 Technical Specification
Listed LPCB Certification
Compliance EN 54-17:2005
Maximum Operating Voltage(VMAX) 28VDC
Operating Voltage(VNOM) 24V
Minimum Operating Voltage(VMIN) 16V
Maximum Open Voltage(VSO MAX) 11V
Minimum Open Voltage(VSO MIN) 8V
Maximum Close Voltage(VSC MAX) 3V
Minimum Close Voltage(VSC MIN) 1.4V
Maximum Continuous Current(IC MAX) 500mA
Maximum Transient Output Current(IS MAX) 5A
Maximum Leakage Current(IL MAX) 2mA
Max closed impedance (ZC MAX) 0.65 ohms
Current Consumption Standby 0.15mA, Alarm: 1.8mA
Protocol T&A
Number of monitored Max 70 Devices
Output Impedance 480 ohms
Indicator Status Normal: Single blink/Active: Steady-on
Material / Colour ABS / White Glossy finishing
Dimension / LWH 108 mm x 86 mm x38 mm
Weight 152g (with Base), 81g (without Base)
Operating Temperature -10°C to +50°C
Ingress Protection Rating IP30
Humidity 0 to 95% Relative Humidity, Non condensing
