Items : 0
Subtotal :  0.00
View CartCheck Out
+91 98848 35702 Mon - Fri 09:00 - 18:30 766/1, TEZ, Sakthi Towers 1, Anna salai, Chennai 600 002.
+91 98848 35702 Mon - Fri 09:00 - 18:30 5, Powai Lake Heights, Mumbai 400 072
ISO 9001:2008
The Best
#1 in India
Number #1
Talk to an Expert
Items : 0
Subtotal :  0.00
View CartCheck Out

RS485/PROFIBUS LWL T-coupler

Click here


  • Bridging of great distances
  • Noice-immune signal transmission
  • Galvanic isolation
Additional information
ExProduct picture



German English PTB 97 ATEX 1068 U
English IECEx PTB 11.0083U
German English TÜV 99 ATEX 1404 X (Module)
English IECEx TUN 12.0024X
American Canadian CSA 2484303
Russian TC RU C-DE.BH02.B.00005
Portuguese TÜV 13.1683 U
Portuguese UL-BR 14.0356X


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


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

Ambient temperature

-25 °C to +60 °C at T4


The RS485/PROFIBUS Optical Fibre T-coupler reroutes the PROFIBUS from copper conductors to optical fibres. The coupler is a passive bus participant. The optical fibre T-coupler allows great ranges to be bridged in plants using PROFIBUS, and is resistant to interference. The electronics for the signal conversion are accomodated in the flameproof MODEX enclosure. The transmitter and receiver for the optical fibre T-coupler are activated in an intrinsically safe way, thereby ensuring that the transmission power of the transmitter does not exceed the permitted limits.

Technical data *

Protection class At least IP 20
Structure Clip-on enclosure to TH 35
Dimensions see data sheet
Material High-quality thermoplastic
Storage temperature -40 °C to +70 °C
Weight 600 g
Display LEDs on front panel
operation: LED green
active bus: LED yellow
Voltage Supply voltage: DC 20 V to DC 30 V
Power dissipation 0.90 W (Module)
Bus interface Bus input/output:
2-wire remote bus with screw terminals
LWL input/output:
FSMA LWL plug-in connectors or ST LWL plug-in connectors
Galvanic isolation Bus//power supply//optical fibre
Connection 2.5 mm², fine stranded

*Refer to the documentation for more detailed information


Data Sheet – RS485/PROFIBUS LWL T-coupler


Declaration of Conformity 01-7311-7C0003


Weight 0.6 kg
Dimensions 9.4 × 9.1 cm

You may also like…