Digital I/O Module I/O-04U

Flush-mounting input module for connecting conventional pushbuttons and switches to the subnet. With this module 4 commands can be transferred to the BUS system.

Quick Facts

  • 4 digital outputs
  • 4 digital inputs
  • Connection of standard buttons to the BUS

The flush-mounting I/O Module is used to connect illuminated pushbuttons to the subnet. The module can be used to transfer 4 commands to the BUS system and output 4 signals. The buttons and signal lamps are connected by means of prefabricated wires.

Electrical Data

Operating voltage 12-27V DC
Current consumption 20-120mA depending on output load
Inputs 4x 12-30V DC, 5mA (potential-free contact) via optocoupler (4.7kOhm)
Outputs 4x +Ub -1V, max. 20mA via OC outputs
Subnet (RS-485) max. 5.6V limitation by Z-diodes
Connection screw terminals 2.5mm² for BUS, inputs/outputs by solid wires 0.8mm
Operating temperature -10...+50°C
Storage temperature -25...+70°C
Humidity 0...85 % r.h. non-condensing
Protection class IP 20

Design, Dimensions, Weight

Design encapsulated in yellow plastic cap for installation in commercially available flush-mounted boxes or third-party devices
Dimensions DxH 50x18mm
Weight 90g

Ordering Data and Conformity

Type designation I/O-04U
Article no. 80024000
Conformity CE

Tender Documents

Instruction Manuals

Wiring Diagrams

DIP switches

8-pole DIP switch for setting the ISYGLT BUS address (0-127) is located on the module.

Special function DIP switch 1

DIP-1 Setting
OFFData transmission rate 38400 Baud
ONData transmission rate 9600 Baud


Function Indicators (LEDs on the Module)

redPowerOffNo operating voltage
OnOperating voltage, no error
yellowBUSOff / OnError BUS
blinkingInterference-free data transmission via the BUS line

Pin Assignment

4-pole connection

=Ub Operating voltage
0V 0V Operating voltage
A BUS A (Subnet RS-485)
B BUS B (Subnet RS-485)

9-pole wire connection

White Input 1
Brown Input 2
Green Input 3
Yellow Input 4
(Grey) COM. inputs (special production for special application on request) default connected with 0V
Pink Output 1
Blue Output 2
Purple Output 3
Black Output 4
Red COM. outputs (+Ub -1V)


Article no.: 80024000

Flush-mounted input module for coupling conventional pushbuttons and switches to the subnet. With this module 4 commands can be transferred to the BUS system.

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