Interface converter - PSM-ME-RS232/TTY-P
2744458

Interface converter, for converting RS-232 (V.24) to TTY, with electrical isolation, 2 channels, rail-mountable


Product Details


This converter converts a V.24 (RS-232) interface into a 20 mA TTY current loop interface bidirectionally. The interference immune TTY signal allows problem-free data transmission over distances of up to 1000 m using a twisted-pair and shielded 4-wire cable.



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
MTBF 1989 Years (Telcordia standard, 25°C temperature, 21% operating cycle (5 days a week, 8 hours a day))
410 Years (Telcordia standard, 40°C temperature, 34.25% operating cycle (5 days a week, 12 hours a day))

Electrical isolation VCC // V.24 (RS-232) // TTY
Maximum power dissipation for nominal condition 1.8 W
Test voltage data interface/power supply 2 kVrms (50 Hz, 1 min.)
Test voltage data interface/power supply 2 kV AC
Test voltage data interfaces 2 kV AC
Supply
Nominal supply voltage 24 V AC/DC ±20 % (via pluggable COMBICON screw terminal block)
Typical current consumption 75 mA (24 V DC)
Protective circuit Surge protection; Suppressor diode

Supply
Torque 0.56 Nm ... 0.79 Nm

Bit distortion < 5 %
Bit delay < 3 µs
Signal Modbus
Transmission channels 2 (1/1), RxD, TxD, full duplex
Data: V.24 (RS-232) interface in acc. with ITU-T V.28, EIA/TIA-232, DIN 66259-1
Serial transmission speed ≤ 19.2 kbps
Connection method D-SUB 9 plug
Pin assignment DTE/DCE switchover via switch
Transmission length 15 m (shielded twisted pair)
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible min. 0.2 mm²
Conductor cross section AWG max. 13
Conductor cross section AWG min. 24
Protocols supported transparent protocol
Data: TTY interface, CL2 in acc. with DIN 66348-1
Serial transmission speed ≤ 19.2 kbps
Connection method Pluggable screw connection
Transmission length 1000 m (shielded twisted pair)
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible min. 0.2 mm²
Conductor cross section AWG max. 13
Conductor cross section AWG min. 24
Load/output load current output ≤ 500 Ω
Impedance ≤ 117 Ω (Output)
126 Ω (Input)
Output current 2x 20 mA ±10 % (Loop current)

Dimensional drawing
Width 22.5 mm
Height 99 mm
Depth 118.6 mm

Color green
Material PA (Housing)

Ambient conditions
Degree of protection IP20
Ambient temperature (operation) 0 °C ... 55 °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 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 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)
Comments Criterion B
Electromagnetic HF field
Standards/regulations EN 61000-4-3
Electromagnetic HF field
Frequency range Test Level 3
Field intensity 10 V/m
Comments Criterion A
Fast transients (burst)
Standards/regulations EN 61000-4-4
Fast transients (burst)
Input ± 4 kV (5 kHz)
Signal ± 2 kV (5 kHz)
Comments Criterion B
Surge current load (surge)
Standards/regulations EN 61000-4-5
Surge current load (surge)
Input ± 0.5 kV (2 Ω)
Signal ± 2 kV (42 Ω)
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.

Mounting type DIN rail mounting

Item number 2744458
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key CN
Product Key DNC111
Catalog Page Page 427 (C-6-2019)
GTIN 4017918171803
Weight per Piece (including packing) 186.6 g
Weight per Piece (excluding packing) 179.6 g
Customs tariff number 85176200
Country of origin DE


ECLASS

ECLASS-9.0 19179290
ECLASS-10.0.1 27242208
ECLASS-11.0 27242208

ETIM

ETIM 8.0 EC001423

UNSPSC

UNSPSC 21.0 32151700

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

EAC

Approval ID: TR TS_D_01871-19

DNV GL

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

cUL Recognized

Approval ID: FILE E 199827
Approval Specification Data
Nominal Voltage UN Nominal Current IN Cross Section AWG Cross Section mm2
24 V 0.075 A

cUL Listed

Approval ID: FILE E 199827

UL Listed

Approval ID: FILE E 199827

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”

Your advantages

Mounting on standard EN DIN rails
Transmission distances of up to 1000 m in active TTY mode
High-quality 3-way isolation up to 2 kV (VCC // RS-232 // TTY)
In the case of variable cable lengths, the TTY connection on the field side can be established conveniently using plug-in screw terminal blocks
Integrated surge protection with transient discharge to the DIN rail
Conversion of RS-232 TxD/RxD full duplex data signals to the TTY current loop standard
Semi-active, active or passive TTY mode, depending on pin assignment
24 V DC or AC power supply suitable for the control cabinet
Active data transmission indicated by separate data indicators for the transmit and receive channels
RS-232 connection via 9-pos. D-SUB and standard RS-232 cable
Transmission speed of up to 19.2 kbps
Shipbuilding approval in accordance with DNV GL