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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