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Slim design
Line structure
Cable lengths according to the RS-485 standard
RS-485 interface
Removal
DIP switches
Basic circuit diagram

Repeater - PSM-ME-RS485/RS485-P
2744429

Repeater, for potential separation and range increase in RS-485 2-wire bus systems, 3-way isolation, rail-mountable

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. The PSM-ME-RS485/RS485-P compact repeater is for universal use in RS-485 2-wire bus systems. The device supports bus systems that rely on the UART/NRZ data format with a character length of 10 or 11 bits.

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 1808 Years (SN 29500 standard, temperature 25°C, operating cycle 21%)
796 Years (SN 29500 standard, temperature 40°C, operating cycle 34.25%)
334 Years (SN 29500 standard, temperature 40°C, operating cycle 100%)
Insulation characteristics
Pollution degree 2
Electrical isolation VCC // RS-485 (A) // RS-485 (B)
Maximum power dissipation for nominal condition 2.16 W
Test voltage data interface/power supply 1.5 kVrms (50 Hz, 1 min.)
Test voltage data interface/power supply 1.5 kV AC
Test voltage data interfaces 1.5 kV AC
Supply
Supply voltage range 18 V AC/DC ... 30 V AC/DC (via pluggable COMBICON screw terminal block)
Nominal supply voltage 24 V AC/DC
Typical current consumption 90 mA (24 V DC)
Max. current consumption 100 mA
Supply
Conductor cross section, flexible 0.20 mm² ... 2.50 mm²
Conductor cross section, rigid 0.20 mm² ... 2.50 mm²
Conductor cross section, flexible [AWG] 24 ... 12
Conductor cross section AWG 24 ... 12
Torque 0.56 Nm ... 0.79 Nm
Bit distortion < 1.5 %
Bit distortion, input max. ± 35 %
Bit distortion, output < 3.6 %
Bit delay < 200 ns
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
Serial transmission speed 1.2 / 2.4 / 4.8 / 9.6 / 19.2 / 38.4 / 57.6 / 75 / 93.75 / 115.2 / 136 / 187.5 / 375 / 500 / 1500 kbps
Connection method Pluggable screw connection
Transmission length ≤ 1200 m (depends on transmission speed, bus system and cable type)
Cascadability 9 (4,8 ... 93,75 kbps)
8 (115.2 kbps)
7 (136 kbps)
6 (187.5 kbps)
5 (375 ... 1500 kbps)
Termination resistor 390 Ω
180 Ω
390 Ω (Can be connected)
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible 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 1 bits
Protocols supported transparent protocol
Data: RS-485 interface, in acc. with EIA/TIA-485, DIN 66259-4/RS-485 2-wire
Serial transmission speed 1.2 / 2.4 / 4.8 / 9.6 / 19.2 / 38.4 / 57.6 / 75 / 93.75 / 115.2 / 136 / 187.5 / 375 / 500 / 1500 kbps
Transmission length ≤ 1200 m (depends on transmission speed, bus system and cable type)
Cascadability 9 (4,8 ... 93,75 kbps)
8 (115.2 kbps)
7 (136 kbps)
6 (187.5 kbps)
5 (375 ... 1500 kbps)
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible 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 1 bits
Protocols supported transparent protocol
Dimensional drawing
Width 22.5 mm
Height 99 mm
Depth 114.5 mm
Color green
Material PA 6.6-FR (Housing)
Ambient conditions
Degree of protection IP20
Ambient temperature (operation) -40 °C ... 70 °C
Ambient temperature (storage/transport) -40 °C ... 85 °C
Altitude ≤ 5000 m (For restrictions, see the manufacturer's declaration for altitude operation)
Permissible humidity (operation) 10 % ... 95 % (non-condensing)
CE
Designation CE
Certificate CE-compliant
CE
Designation EAC
Identification EAC
CE
Designation ATEX
Identification  II 3 G Ex nA IIC T4 Gc
Certificate IBExU16ATEXB004 X
Note Please follow the special installation instructions in the documentation!
CE
Designation IECEx
Identification Ex nA IIC T4 Gc
Certificate IECEx IBE 15.0034X
CE
Designation UL, USA / Canada
Identification 508 Recognized
Class I, Div. 2, Groups A, B, C, D
Class I, Zone 2, AEx nA IIC T4
Class I, Zone 2, Ex nA IIC T4 Gc X
CE
Designation KC approval for South Korea
Certificate KCC-REI-PCK-FL2744429
CE
Designation Corrosive gas test
Identification ISA-S71.04-1985 G3 Harsh Group A
CE
Designation Shipbuilding
Identification DNV GL
DNV GL data
Temperature B
Humidity A
Vibration A
EMC B
Enclosure Required protection according to the Rules shall be provided upon installation on board
Electromagnetic compatibility Conformance with EMC Directive 2014/30/EU
Noise emission EN 61000-6-4
Noise immunity EN 61000-6-2:2005
Electrostatic discharge
Standards/regulations EN 61000-4-2
Electrostatic discharge
Contact discharge ± 6 kV (Test Level 3)
Discharge in air ± 8 kV (Test Level 3)
Indirect discharge ± 6 kV (Test Level 3)
Comments Criterion B
Electromagnetic HF field
Standards/regulations EN 61000-4-3
Electromagnetic HF field
Frequency range 26 MHz ... 3 GHz (Test Level 3)
Field intensity 10 V/m
Comments Criterion A
Fast transients (burst)
Standards/regulations EN 61000-4-4
Fast transients (burst)
Input ± 2.2 kV (Test Level 3)
Signal ± 2.2 kV (Test Level 3)
Comments Criterion B
Surge current load (surge)
Standards/regulations EN 61000-4-5
Surge current load (surge)
Input ± 0.5 kV (DC supply)
Signal ± 1 kV (Data line, asymmetrical)
Comments Criterion B
Conducted interference
Standards/regulations EN 61000-4-6
Conducted interference
Frequency range 0.15 MHz ... 80 MHz
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.
Mounting type DIN rail mounting
Item number 2744429
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key CN
Product Key DNC111
Catalog Page Page 423 (C-6-2019)
GTIN 4017918171797
Weight per Piece (including packing) 207 g
Weight per Piece (excluding packing) 188.8 g
Customs tariff number 85176200
Country of origin DE

ECLASS

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

ETIM

ETIM 8.0 EC002608

UNSPSC

UNSPSC 21.0 43222600

cUL Recognized

Approval ID: FILE E 238705
Approval Specification Data
Nominal Voltage UN Nominal Current IN Cross Section AWG Cross Section mm2

UL Recognized

Approval ID: FILE E 238705
Approval Specification Data
Nominal Voltage UN Nominal Current IN Cross Section AWG Cross Section mm2

DNV GL

Approval ID: TAA00001KR
Approval Specification Data
Nominal Voltage UN Nominal Current IN Cross Section AWG Cross Section mm2

KC

Approval ID: KCC-REI-PCK-FL274442

cUL Recognized

Approval ID: FILE E 199827
Approval Specification Data
Nominal Voltage UN Nominal Current IN Cross Section AWG Cross Section mm2
24 V 0.09 A

IECEx

Approval ID: IECEx IBE 15.0034 X

cUL Listed

Approval ID: FILE E 199827

UL Listed

Approval ID: FILE E 199827

ATEX

Approval ID: IBExU 16 ATEX B004 X

cULus Recognized

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”

Compatible Products

Your advantages

Mounting on standard EN DIN rails
Transmission speeds of up to 1.5 Mbps
High-quality 3-way isolation between all interfaces
Space-saving slim 22.5 mm device
Integrated, connectable termination resistors
All connections can be plugged in using a COMBICON screw terminal block
Shipbuilding approval in accordance with DNV GL
PHOENIX CONTACT (Ireland) Ltd
C6 The Exchange, Calmount Park, Ballymount, Dublin 12, D12 XE18, Ireland
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