Wireless universal transmitter

RF I/O SW868-4E-BU-2,2Ah SMA LBT

Article no.: 1452786

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Product features

newWireless
  • Thermoplastic enclosure

  • 4 x Socket M8

  • sWave® wireless technology

  • No wiring and cable laying required

  • Power supply by Lithium battery

  • Output signal can be individually configured at the receiver

  • LBT - Listen before Talk Firmware

  • With SMA connector for external antenna to increase range

Notes

  • The RF I/O BU may be used in combination with wireless inductive sensor RF IS M… FL.

  • The battery is included in delivery.

Technical data

Applied standards

EN IEC 60947-5-1, EN 301 489-3, EN IEC 61000-6-2, EN IEC 61000-6-3, EN IEC 63000

Enclosure

ABS, UL 94 HB, RAL 9005

Antenna

internal antenna

Tightening torque

enclosure mounting screws: max. 1.5 Nm
cover screws: max. 1.5 Nm

Degree of protection

IP65 (IEC/EN 60529), only with plugged cables and/or with closed protective caps

Safety class

III

Ambient temperature

–20 °C … +80 °C

Type of installation

mount on an even surface

Mounting position

any

Mounting

screw connection

Connection

4 x socket M8 x 1, 4-pole

Switching thresholds

max. switch-on threshold: 2.05 V,
min. switch-off threshold: 0.95 V

Switch-on delay ton

max. 0.94 ms

Switch-off delay toff

max. 94.7 ms

Actuating time

min. 80 ms

Telegram rate

max. 12000 telegrams with repetitions/h

Switching frequency

max. 5 Hz

Standby current

60 µA

Note

status signal – can be individually configured via radio receiver (delivery state: without status signal)
LBT – can be deactivated via radio receiver (e.g. in conjunction with repeaters)
transmission of battery voltage and switching condition
Go to our different wireless receivers to find corresponding how-to videos.

Wireless approvals

Europe: RED 2014/53/EU

Frequency

868.3 MHz (Europe)

Data rate

66 kbps

Channel bandwidth

350 kHz

Modulation type

2-FSK

Protocol

sWave®

Transmission power

< 25 mW

Wireless range

max. 450 m outdoors, max. 40 m indoors

Voltage source

lithium battery Tadiran SL-760 (AA), replaceable

System

Li/SOCl2

Nominal voltage

3.6 V

Nominal capacity

2.2 Ah

Battery life

depending on operation cycles and number and type of sensors for 1,000 transfers/day and one inductive sensor FL approx. 1,900 days; for 1,000 transfers/day and one mechanical switch about 10 years
Inductive sensor FL 1 x
10 s: approx. 3.9 years; 100 s: approx. 5.1 years; 1,000 s: approx. 5.1 years
Inductive sensor FL 4 x
10 s: approx. 1.7 years; 100 s: approx. 1.9 years; 1,000 s: approx. 1.9 years

Battery life – external contact / magnetic sensor 1 x

mainly activated
10 s: approx. 6.9 years; 100 s: >10 years
mainly inactivated
10 s: approx. 7.9 years; 100 s: >10 years

Battery life – external contact / magnetic sensor 4 x

mainly activated
10 s: approx. 5.2 years; 100 s: approx. 7.4 years; 1,000 s: >10 years
mainly inactivated
10 s: ca. 7,9 years: 100 s: >10 years

Dimensional drawing

Further drawings

Pin assignment

NC = not connected

Downloads

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Mounting and wiring instructions – RF I/O

German, English, French, Italian, Portuguese

PDF2 MB 19.03.2026
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Wireless universal transmitter

RF I/O SW868-4E-BU-2,2Ah SMA LBT

Article no.: 1452786

contact us