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FOUR-CHANNEL RECEIVER ROM-24 

OPERATION MANUAL

ZAMEL 

Sp. z o.o.

ul. Zielona 27, 43-200 Pszczyna, Poland

tel. +48 (32) 210 46 65, fax +48 (32) 210 80 04

www.zamel.com

, e-mail: [email protected]

plik: ROM-24_inst_ext_gb | modyfikacja: 30.05.2018

The symbol means selective 

collecting of electrical and electronic 

equipment. It is forbidden to put the 

used equipment together with other 

waste.

Zamel Sp. z o.o. hereby declares that the 

ROM-24 radio equipment type conforms 

to Directive 2014/53/EU.

APPEARANCE

FEATURES

TECHNICAL DATA

DESCRIPTION

●  Rated supply voltage 230 VAC

●  Compatible with EXTA LIFE system control-

ler and transmitters

●  With  4  output  channels  (4  x  potential-free 

NO contacts)

●  Two-way transmission with an indication of 

each output status in the application

●  Programmable  output  status  after  supply 

voltage loss,

●  4 programmable external inputs

●  For connecting monostable or bistable con-

nectors

●  4 operating modes when working with trans-

mitters (activate/deactivate, bistable, mon-

ostable, time),

●  2  operating  modes  when  working  with  a 

controller (activate/deactivate, time),

●  Independently programmable time for radio 

transmitters, external inputs and for control-

ler,

●  Times assigned independently for each out-

put

●  Software can be updated remotely

The ROM-24 modular radio receiver is the 

final  element  of  the  EXTA  LIFE  system  which 

allows  individual  control  of  any  four  devices/

circuits. Outputs take the form of four relays 

with  normally  open  terminals  with  maximum 

load rating at 5 A. This enables the control of 

low  voltage  circuits  (for  example  12/24  VAC/

VDC) and high-voltage circuits (230 VAC). The 

receiver is good for remote actuation of other 

devices. You can also use it for feeding control 

signals. The ROM-24 receiver is also suitable 

for controlling solenoids in heating systems. 

Based  on  duplex  communication  between  the 

controller and receivers, the mobile applica-

tion  always  shows  the  current  status  of  the 

receiver. This communication method enables 

the operator to change the specific parameters 

of the receiver and add receivers remotely (i.e. 

without actual access to the receiver). Thanks 

to the frame encryption algorithm implemented 

control safety is guaranteed. The ROM-24 in-

stalled outside a controller may be controlled in 

parallel using the EXTA LIFE system’s transmit-

ters.  You  can  register  more  transmitters  with 

a receiver to enable independent control from 

several locations. Additional configurable cable 

inputs increase the functionality of the control. 

The receiver has a built-in remote software up-

date from a controller. The product is designed 

for installing in switchgears using a TH35 (DIN) 

bar. With removable antenna to enable the con-

nection of an external antenna.

Rated supply voltage 230 VAC

Rated frequency 50 / 60 Hz

Rated power consumption 0.65 W – standby

2.2 W – all channels activate

Transmission RF – ISM 868 MHz (868.50 MHz) band

Transmission mode duplex – 9600 bps

Maximum power 14 dBm (25 mW)

Encryption 128-bit key algorithm

Operating range max. 300 m in open areas

Transmitting/programming signalling Yes - green LED (STATUS)

Selected channel / channel status signalling Yes - red LEDs (CH1, CH2, CH3, CH4)

Maximum number of paired buttons 96 pairs (distributed into 4 channels)

Current channel status information Yes - in EXTA LIFE mobile application

Operation modes in co-operation with EXTA LIFE 

system transmitters Turn on/off, bistable, monostable, time

Operation modes in co-operation with an EXTA 

LIFE controller Turn on, off, timer

Number of external outputs 4

Compatible connectors* monostable (buttons), bistable

Operation modes for external inputs** Turn on/off, bistable, monostable, time

Time setpoint range*** 1 s–18 h

Number of output channels 4

Relay contact parameters 4 x NO 10A / 250 VAC (voltage-free closing 

contacts)

Maximum outputs current-carrying capacity 4 x 5A / 250 VAC

Number of termination points 12 (conductor cross-section up to 2.5 mm2)

Enclosure mounting TH35 bar (DIN)

Operating temperature range -10 to +55°C

Enclosure protection rating IP20

Dimensions 90 x 35 x 66 mm (double module)

Weight 0.125 kg

*  selection of switch possible only from the mobile app coupled with EFC-01 controller 

**  input operating mode selection depends on the type of connector type selected

*** times are assigned independently to each channel of the receiver. The periods are programmed separately for but-

tons operating in time mode, external inputs and for control from the app level

Transmit/receive signalling

/ status during programming operations

PROG. button - programming

Diodes for signalling currently selected 

channel during programming / channel status 

during normal operation

Antenna socket

Common terminal for channel 1 and 2

Common terminal for channel 3 and 4

Input terminals for cable control (by default 

works with monostable connectors)

Output terminals  (channel 1-4)

Power terminals

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