RS485/PROFIBUS LWL T-coupler

Certificates

  PTB 97 ATEX 1068 U
 IECEx PTB 11.0083U
  TUEV 99 ATEX 1404 X (Module)
 IECEx TUN 12.0024X
 CSA 2484303
 GOST R POCC DE.ME92.B02630
 GOSPROMNADZOR 11-02-0015-2012

Ex protection type

 II 2 G / I M2
Ex d e [ib] IIC Gb
Ex d e [ib] I Mb
Class I Zone 1 IIC
A/Ex d e [ib] IIC Gb
Fitting (17-1923-1133/0000):
 II (2) G / II (2) D
[Ex ib Gb] IIC
[Ex ib Db] IIIC
Optical waveguide, Transmitter (17-2114-0002):
 II 2 G / II 2 D
Ex ib op is IIC T4 Gb
Ex ib IIIC TX* °C Db
Optical waveguide, Receiver (17-2114-0003):
 II 2 G / II 2 D
Ex ib IIC T4 Gb
Ex ib IIIC TX* °C Db

Ambient temperature

Directive 2004/108/EG
Directive 94/9/EG

Description

The RS485/PROFIBUS LWL T-coupler reroutes the PROFIBUS from copper conductors to optical waveguides. The LWL T-coupler is a passive bus participant. In plants, the LWL T-coupler allows the bridging of great distance with PROFIBUS without noice interference.

The electronics for the signal conversion are accomodated in the flameproof MODEX enclosure. Transmitter and receiver for the LWL-coupler are intrinsically safe headed. The intrinsically safe control transmitter and receiver of the electronic system guarantee that the transmitter rate does not go beyond maximum value limits.