Jung KNX 2128 REG Operating Instructions Manual

Binary input 8-gang, 24 V

Binary input 8-gang, 24 V

Art.-No.: 2128 REG

Operating instructions

1 Safety instructions

Electrical equipment may only be installed and fitted by electrically skilled persons.

Serious injuries, fire or property damage possible. Please read and follow manual fully.

Danger of electric shock. When connecting SELV/PELV systems, ensure safe isolation
from other voltages.

These instructions are an integral part of the product, and must remain with the end
customer.

2 Device components

Figure 1: Binary input 8gang 24 V

(1) Connection for inputs
(2) Status LED inputs, yellow

On: voltage for signal level '1' present.

Off: voltage for signal level '0' present.
(3) Programming LED
(4) Programming key
(5) KNX connection
(6) Voltage output for potential-free contacts

3 Function

System information

This device is a product of the KNX system and complies with the KNX directives. Detailed
technical knowledge obtained in KNX training courses is a prerequisite to proper
understanding.

The function of this device depends upon the software. Detailed information on loadable
software and attainable functionality as well as the software itself can be obtained from the
manufacturer´s product database. Planning, installation and commissioning of the device are
carried out with the aid of KNX-certified software. The latest versions of product database and
the technical descriptions are available on our website.

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J:0082578403

23.03.2012

Intended use

- Polling of conventional switching or push-button contacts, glass break detectors etc. in

KNX systems, for reporting of states, operation of loads, etc.

- Mounting on DIN rail according to EN 60715 in distribution boxes

Product characteristics

- Status LED for each input

- Detection of voltage levels and changes on the input

- Transmitting the input state to the bus

- Transmission behaviour freely settable

- Functions: switching, dimming, blinds up/down, brightness values, temperatures, calling up

and saving scenes

- Inputs can be disabled separately

- External AC and DC voltages can be connected

- Auxiliary voltage output for polling potential-free contacts

- No separate power supply required.

- Separate reference potentials for inputs

4 Information for qualified electricians

4.1 Fitting and electrical connection

DANGER!
Electrical shock when live parts are touched.
Electrical shocks can be fatal.
Before carrying out work on the device or load, disengage all the

corresponding circuit breakers. Cover up live parts in the working environment.

Fitting the device

Observe the temperature range. Ensure adequate cooling.
o Mount device on DIN rail.

Connect 24 V binary input

Figure 2: Connection example – contacts supplied internally

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82578403
J:0082578403

23.03.2012

Binary input 8-gang, 24 V