W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

Interface Modules

for serial PC cards and Com-servers using 10/100BT

  • Interface module 18813

Freely selectable serial interface

W&T interface modules equip devices having only a serial TTL interface with almost any desired standard interface type. In addition the modules allow you to adapt the interface types of many W&T devices over a wide range. The modification is done by simply replacing the standard interface modules with modules of the desired interface type.

Properties

Interfaces:

  • 1 x serial standard interface
    • 9-pin SUB-D connector
  • 1 x TTL interface
    • 12-pin male header with 2mm spacing

Management and connectivity:

  • Tiny plug-in interfaces
  • Complete selection of interfaces
    • RS232
    • RS485/RS422
    • RS232/RS422/RS485 (selectable interface type)
    • Profibus
    • 20mA

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Technical data

Connections and displays:

   
RS232/RS422/RS485 Combi-module
5V version: #18813, 3.3V version: #18833
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D adapter
Operating modes:    RS232
RS422
RS485 2/4 wire with handshake control
RS485 2/4 wire with automatic control
Switching time:   approx. 10µs for switching from data send to receive
for RS485 automatic control (can be changed on request)
Transfer rate:   RS232: max. 1MBaud
RS422/RS485: max. 10MBaud
Signals:   RS232: RxD,TxD,RTS,CTS,DSR,DCD,DTR,RI
RS422: RxD,TxD,CTS,DTR
RS485: RxD, TxD
Termination:   Connectable termination network
Power supply:   18813: 5V, 40mA (typ.)
18833: 3.3V, 40mA (typ.)
     
   
RS232 DTE module, #18811
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D adapter
Transfer rate:   max. 115,200 baud
Signals:   RxD,TxD,RTS,CTS,DSR,DCD,DTR,RI
Power supply:   5V, 20mA (typ.)
     
   
RS422/485 module, #18611
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D adapter
Operating modes:    RS422
RS485 2/4 wire with handshake control
RS485 2/4 wire with automatic control
Switching time:   approx. 10µs for switching from data send to receive
for RS485 automatic control (can be changed on request)
Transfer rate:   max. 10MBaud
Signals:   RxD,TxD,CTS,DTR
Termination:   Connectable termination network
Power supply:   5V, 40mA (typ.)
     
   
RS422/485 module with overvoltage protection, #18613
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D adapter
Operating modes:    RS422
RS485 2/4 wire with handshake control
RS485 2/4 wire with automatic control
Switching time:   Selectable 10µs / 50µs for switching from data sending to receiving
for RS485 automatic control (can be changed on request)
Transfer rate:   max. 5Mbaud
Signals:   RxD,TxD,CTS,DTR
Overvoltage protection:   Transil diodes (Umax 9.2V at Imax = 20A and t = 10/1000µs)
Termination:   Connectable termination network
Power supply:   5V, 40mA (typ.)
     
   
Profibus module, #18612
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D female
Operating mode:   RS485 2-wire mode with echo suppression and
automatic control of the RS485 transceivers
Switching time:   approx. 1µs for switching from data send to receive
(can be changed on request)
Transfer rate:   max. 10MBaud
Signal lines:   Bus A/B
Vcc and GND for supply of the
external termination network
Power supply:   5V, 40mA (typ.)
     
   
20mA module, #18411
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D adapter
Transfer rate:   max. 19.200 kBaud
Signals:   RxD,TxD
Operating modes:   active/passive mode
Power supply:   5V, 10mA / 12V, 40mA (typ.)
     
   
20mA module, #18412
TTL plug adapter:   Terminal strip, 2mm spacing
Serial port:   9-pin SUB-D adapter
Transfer rate:   max. 19.200 kBaud
Signals:   RxD,TxD
Operating modes:   active/passive mode
Power supply:   3.3...5V, max. 210mA at 3.3V

Dimensions and other data

Dimensions:    45 x 32 x 14mm (L x W x H)
Enclosure rating:   IP00
Weight:   approx. 15g

Article list

    • RS232/RS422/RS485 interface module, 5V technology
    • 18813
    • 49.00€
    • RS232/RS422/RS485 interface module, 3.3V technology
    • 18833
    • 49.00€
    • RS232 DTE interface module
    • 18811
    • 34.77€
    • RS422/RS485 interface module
    • 18611
    • 49.00€
    • RS422/RS485 interface module with overvoltage protection
    • 18613
    • 49.00€
    • Profibus interface module
    • 18612
    • 49.00€
    • 20mA interface module (5V and 12V)
    • 18411
    • 49.00€
    • 20mA interface module (3.3V..5V)
    • 18412
    • 49.00€

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.