2744458 Datasheet 2744458 | P1-P3

1Description

Interface converter for TTY transmission systems

PSM-ME-RS232/TTY-P

Data sheet

The interface converter PSM-ME-RS232/TTY-P converts

RS-232 interface signals bidirectionally to the TTY

standard.

The interface converter is snapped onto standard EN DIN

rails in the switch cabinet and supplied with 24VDC or AC.

Possible applications:

– Interface adaptation to TTY devices

– Permanent line for process data evaluation

– Temporary programming connections

Features

– Transmission distances of up to 1000m in active TTY

mode

– High-quality 3-way isolation up to 2kV

(VCC // V.24 (RS-232) // TTY)

– 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

– Logical signal position can be inverted via plug-in

bridge

– 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

Make sure you always use the latest documentation.

It can be downloaded from the product at phoenixcontact.net/products

100275_en_02

2016-09-15

PSM-ME-RS232/TTY-P

100275_en_02 PHOENIX CONTACT 2 / 13

2Table of contents

1 Description .............................................................................................................................. 1

2 Table of contents..................................................................................................................... 2

3 Ordering data .......................................................................................................................... 3

4 Technical data ......................................................................................................................... 3

5 Safety notes............................................................................................................................. 6

5.1 UL Notes ........................................................................................................................... 6

6 Application examples .............................................................................................................. 7

7 Structure.................................................................................................................................. 8

7.1 Dimensions ........................................................................................................................ 8

7.2 Function elements ............................................................................................................... 9

8 RS-232 interface...................................................................................................................... 9

8.1 Configuration.................................................................................................................... 10

8.2 DTE/DCE adjustment ......................................................................................................... 10

9 TTY interface ......................................................................................................................... 11

9.1 Operating modes............................................................................................................... 11

9.2 Inversion of signal layer ....................................................................................................... 12

9.3 Connecting the data cables .................................................................................................. 12

10 Assembly............................................................................................................................... 13

10.1 Removal.......................................................................................................................... 13

10.2 Power supply.................................................................................................................... 13

PSM-ME-RS232/TTY-P

100275_en_02 PHOENIX CONTACT 3 / 13

Description Ty pe Order No. Pcs./Pkt.

Interface converter, for converting RS-232 (V.24) to TTY,

with electrical isolation, 2 channels, rail-mountable

PSM-ME-RS232/TTY-P 2744458 1

3Ordering data

Accessories Ty pe Order No. Pcs./Pkt.

RS-232 cable, 9-pos. D-SUB socket 25-pos on D-SUB

socket

PSM-KA 9 SUB 25/BB/

2METER

2761059 1

RS-232 cable, 9-pos. D-SUB socket on 9-pos. D-SUB

socket, 9-wire, 1:1

PSM-KA9SUB9/BB/2METER 2799474 1

Shield connection clip for printed circuit terminal block ME-SAS 2853899 10

Actuation tool, for ST terminal blocks, also suitable for use

as a bladed screwdriver, size: 0.6 x 3.5 x 100 mm,

2-component grip, with non-slip grip

SZF 1-0,6X3,5 1204517 10

D-SUB connector, 9-pos., male connector, one cable

entry < 35°, universal type for all systems, pin assignment:

1, 2, 3, 4, 5, 6, 7, 8, 9 to screw connection terminal block

SUBCON 9/M-SH 2761509 1

4 Technical data

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)

Electrical isolation VCC // V.24 (RS-232) // TTY

Test voltage data interface/power supply 2 kV

rms

(50 Hz, 1 min.)

Torque 0.56 Nm ... 0.79 Nm

V.24 (RS-232) interface in acc. with ITU-T V.28, EIA/TIA-232, DIN 66259-1

Transmission channels 2 (1/1), RxD, TxD, full duplex

Connection method D-SUB9 plug

Conductor cross section 0.2 mm² ... 2.5 mm² (24 AWG ... 13 AWG)

Serial transmission speed ≤ 19.2 kbps

Transmission length 15 m (shielded twisted pair)

Protocols supported transparent protocol

Pin assignment DTE/DCE switchover via switch

P1-P3 P4-P6 P7-P9 P10-P12 P13-P13

2744458

Mfr. #:

Buy 2744458

Manufacturer:

Phoenix Contact

Description:

Terminal Block Interface Modules PSM-ME-RS 232/TTY-P

Lifecycle:

New from this manufacturer.

Delivery:

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2744458