Overview

TX7221 multichannel input and output module (hereinafter referred to as module) is a dedicated bus module device for fire protection, which can be connected with intelligent fire alarm controller.

Feature and Benefits

• A non polar bus of two wire

• Four input detection ports, four contact output ports, one active output port.

• The input ports have the function of line fault detection

• Software and hardware filter technology is used to improve the anti-interference ability of the module

• LED status indicator

• Onsite Adjustable Parameter

• Loop and external power input

Technical Specification

Power Rating

Input Voltage : Loop Power:24VDC [18V to 28V]

External PSU: 20 to 28VDC

Current Consumption : Bus monitoring current: ≤1.5mA, Equipment monitoring current: ≤25mA

 

Module

End of line Resistance : 5.1Kohms/ ¼ W

Active output voltage : 30VDC / 500mA

Contact output voltage : 30VDC / 2A (per circuit)

Line system : Connected with the controller using non-polar bus of two wire; connected to the DC24V power supply using a non- polar two-wire connection

Protocol/Addressing : T&A, Value range from 1 to 254,occupies nine addresses

 

Appearance

Dimension / LW : 150 mm x 100 mm

Weight : 350g

Operating Temperature : -10°C to +50°C

Humidity : 0 to 95% Relative Humidity, Non condensing

 

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