Fieldbus Isolating Repeater Series 9185/12

Fieldbus Isolating Repeater Series 9185/12

Series 9185/12

  • Fieldbus RS-422, RS-485
  • Galvanic isolation between RS-422 / RS-485, RS-232, RS-422, RS-485 and power supply
  • Transmission speed adjustable between 1.2 kBit/s and 1.5 MBit/s
  • Automatic setting of transmission speed for Profibus DP
  • Bitrefresh

Basic function: Isolating repeater for communication signals

The fieldbus isolating repeater enables an interference free transmission of Profibus, Modbus and R. STAHL Servicebus signals by means of a high quality galvanic isolation combined with the "Bitrefresh" function. The repeater blocks equalization currents and protects sensitive devices against transient noise. The repeater supports RS-485 as well as RS-422. In addition it offers the interface adaption RS-232 to RS-485 / RS-422. This functions enables to connect a standard PC with RS-232 with RS-485 / RS-422 interfaces. The signal conversion of RS-232 based signals towards RS-485 / RS-422 allows to reach longer transmission distances.


ATEX / IECEx NEC 505 NEC 506 NEC 500
Class I Class I Class II Class III
Zone 0 1 2 20 21 22 Zone 0 1 2 20 21 22 Division 1 2 1 2 1 2
Installation in x x Installation in x x Installation in x x x

Data sheets

Document Size Language
Data sheet 341 kB English
Data sheet 340 kB German
Data sheet 278 kB French
Data sheet 393 kB Russian

Operating Instructions

Document Size Language
Operation Instructions 814 kB English
Operation Instructions 1,82 MB English/German
Operation Instructions 817 kB German
Operation Instructions 824 kB Russian
Manual 1,13 MB English
Manual 1,13 MB German
Manual 1,15 MB Russian
Manual 1,14 MB Portuguese


Type Certificate No. Document-Type Language Cer. Body Country/ Region
9185 9185602020 EU Declaration of Conformity deenfr - European Union (ATEX)
9185 28444A1BV Ship certificate en BVIS Ships Classification
9185 BVS10ATEXE105X Ex Certificate deen BVS European Union (ATEX)
9185 IECEXBVS060004X Ex Certificate en BVS IECEx
9185 HB14T00021_02 Ship certificate zhen CCS Ships Classification
9185 10A016 Ship certificate en ClassNK Ships Classification
9185 A13254 Ship certificate en DNVGL Ships Classification
9185 MRA000000V Ship certificate en DNVGL Ships Classification
9185 3017145 Ex Certificate en FM United States
9185 3027620C Ex Certificate en FM Canada
9185 9185601311 Control drawings en FM Canada
9185 9185601311 Control drawings en FM United States
9185 12GA4BO0512X Ex Certificate enko KGS Korea, Republic of
9185 1320008 Ship certificate en LR Ships Classification
9185 7468 Metrological certificate kkru MESRK Kazakhstan
9185 ELE150515XG Ship certificate en RINA Ships Classification
9185 1340014250 Ship certificate enru RS Ships Classification
9185 TS_RU_S-DEGB04B00353 Ex Certificate ru STV Eurasian Customs Union (EAC)
9185 ULBR130647X Ex Certificate enpt ULB Brazil