RT4-5et Ethernet transmitter in serial production
A direct IP connection to the monitoring centre: the RT4-5et works with DSC, Paradox, NX and Bentel panels and suits sites with a stable Ethernet connection.

The RT4-5et is a universal wired Ethernet transmitter. It uses two IP addresses — primary and backup — and switches to the backup automatically if the primary is unavailable. A domain name can be set for the primary address.
The transmitter has built-in Paradox, DSC, NX and other panel formats, three inputs and two programmable outputs. A CORTEX GSM or radio transmitter can be connected to the Serial Bus output as a second communication channel.
Key points
- Ethernet 10/100 BaseT, RJ45, TCP/IP
- 2 IP addresses with automatic failover
- Formats: Serial Bus, ABUS II, Esprite, MG/SP/E, EVO, Power Series (DSC), NX (CADDX)
- Power 11–30 V DC, up to 70 mA
- Size 70×70×20 mm, no enclosure