Repeater - PSI-REP-RS485W2

Modular repeater for electrical isolation and range increase in RS-485 2-wire bus systems up to 500 kbps, 4-way isolation, rail-mountable, supply 24 V DC

Product Details

The performance and availability of bus systems can be significantly increased by using repeaters. In addition to electrical isolation, bus segmentation with repeaters makes it possible to multiply the permissible coverage of the network and to extend the number of devices.

Utilization restriction
EMC note EMC: class A product, see manufacturer's declaration in the download area
Utilization restriction
CCCex note Use in potentially explosive areas is not permitted in China.

Product type Interface converter
MTTF 1439 Years (SN 29500 standard, temperature 25°C, operating cycle 21%)
717 Years (SN 29500 standard, temperature 40°C, operating cycle 34.25%)
305 Years (SN 29500 standard, temperature 40°C, operating cycle 100%)
MTBF 1247 Years (Telcordia standard, 25°C temperature, 21% operating cycle (5 days a week, 8 hours a day))
261 Years (Telcordia standard, 40°C temperature, 34.25% operating cycle (5 days a week, 12 hours a day))

Electrical isolation VCC // TBUS // RS-485 (A) // RS-485 (B)
Maximum power dissipation for nominal condition 1.8 W
Test voltage data interface/power supply 1.5 kVrms (50 Hz, 1 min.)
Test voltage data interfaces 1.5 kV
Supply voltage range 18 V DC ... 30 V DC (via pluggable COMBICON screw terminal block)
Nominal supply voltage 24 V DC (in acc. with UL)
Typical current consumption 75 mA (24 V DC )
Max. current consumption ≤ 2 A (For operation in a joining station, via the DIN rail connector)

Torque 0.6 Nm ... 0.8 Nm

Bit distortion, input max. ± 35 %
Bit distortion, output < 6.25 %
Bit delay < 1 bit
Signal Modbus
Transmission channels 2 (1/1), TD, RD, half duplex
Data: RS-485 interface, in acc. with EIA/TIA-485, DIN 66259-4/RS-485 2-wire
Transmission speed 4.8/9.6/19.2/38.4/57.6/75/93.75/115.2/136/187.5/375/500 kbps (Can be set manually)
Connection method Pluggable screw connection
Transmission length ≤ 1200 m (depends on transmission speed, bus system and cable type)
Termination resistor 390 Ω (Can be connected to port A and B)
150 Ω
390 Ω
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible min. 0.2 mm²
Conductor cross section solid max. 2.5 mm²
Conductor cross section solid min. 0.2 mm²
Conductor cross section AWG max. 12
Conductor cross section AWG min. 24
Transmission medium 2-wire twisted pair, shielded
File format/coding UART (11/10 bit switchable; NRZ)
Data direction switching Automatic control, min. station response time 2 bits

Dimensional drawing
Width 35 mm
Height 99 mm
Depth 105 mm

Color gray
Material PA 6.6-FR (Housing)

Ambient conditions
Degree of protection IP20
Ambient temperature (operation) -20 °C ... 60 °C
Ambient temperature (storage/transport) -40 °C ... 85 °C
Altitude ≤ 5000 m (For restrictions, see the manufacturer's declaration for altitude operation)
≤ 2000 m (Hazardous locations)
Permissible humidity (operation) 10 % ... 95 % (non-condensing)

Designation CE
Certificate CE-compliant
Designation ATEX
Identification  II 3 G Ex ec IIC T5 Gc
Certificate UL 21 ATEX 2550X
Note Please follow the special installation instructions in the documentation!
Designation IECEx
Identification Ex ec IIC T5 Gc
Certificate IECEx ULD 21.00013X
Designation UL, USA / Canada
Identification Class I, Zone 2, AEx ec IIC T5 Gc
Ex ec IIC T5 Gc X
Class I, Div. 2, Groups A, B, C, D
Designation Corrosive gas test
Identification ISA-S71.04-1985 G3 Harsh Group A

Electromagnetic compatibility Conformance with EMC Directive 2014/30/EU
Noise emission EN 55011
Noise immunity EN 61000-4-2
Electrostatic discharge
Standards/regulations EN 61000-4-2
Electrostatic discharge
Contact discharge ± 6 kV
Discharge in air ± 8 kV
Comments Criterion B
Electromagnetic HF field
Standards/regulations EN 61000-4-3
Electromagnetic HF field
Frequency range 80 MHz ... 3 GHz
Field intensity 10 V/m
Comments Criterion A
Fast transients (burst)
Standards/regulations EN 61000-4-4
Fast transients (burst)
Input ± 2 kV
Signal ± 2 kV
Comments Criterion B
Surge current load (surge)
Standards/regulations EN 61000-4-5
Surge current load (surge)
Input ± 0.5 kV
Signal ± 1 kV
Comments Criterion B
Conducted interference
Standards/regulations EN 61000-4-6
Conducted interference
Comments Criterion A
Voltage 10 V
Emitted interference
Standards/regulations EN 55011
Comments Class A, industrial applications
Criterion A Normal operating behavior within the specified limits.
Criterion B Temporary impairment to operational behavior that is corrected by the device itself.

Free from substances that could impair the application of coating according to P-VW 3.10.7 57 65 0 VW-AUDI-Seat central standard
Standards/regulations EN 62368

Mounting type DIN rail mounting

Item number 2313096
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key CN
Product Key DNC122
Catalog Page Page 423 (C-6-2019)
GTIN 4046356098816
Weight per Piece (including packing) 260.1 g
Weight per Piece (excluding packing) 240.8 g
Customs tariff number 85176200
Country of origin DE


ECLASS-9.0 19179290
ECLASS-10.0.1 19179290
ECLASS-11.0 19179090


ETIM 8.0 EC002608


UNSPSC 21.0 43222600


Approval ID: TR TS_D_01871-19

UL Listed

Approval ID: FILE E 238705

cUL Listed

Approval ID: FILE E 238705


Approval ID: PxCIF06ATEX2708863X

cUL Listed

Approval ID: FILE E 199827

UL Listed

Approval ID: FILE E 199827


Approval ID: IECEx ULD 21.0013X


Approval ID: UL 21 ATEX 2550X

cULus Listed

cULus Listed

REACh SVHC Lead 7439-92-1
China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Your advantages

Data rates of up to 500 kbps (adjustable via DIP switches)
High-quality 4-way isolation between all interfaces
Bit oversampling for reliable detection of sporadic disturbances
Bit retiming for unrestricted cascading of devices
Integrated, connectable termination resistors
Can be combined with PSI-MOS FO converters in a modular way thanks to DIN rail connectors
Approved for use in zone 2