RTcom Radio Modems Spezifikationen PDF herunterladen (Seite 10)

ABACOM Technologies • 32 Blair Athol Crescent • Etobicoke • ON • M9A 1X5 • Canada • Tel: +(416)236 3858 • Fax: +(416)236 8866

RTcomTx-RS232 Transmitter and

RTcomRx-RS232 Receiver pair

• 2400, 4800 or 9600bps simplex

• 2-Wire RS232 Interface, TX(Data) and GND, Rx(data) and GND

• Microcontroller with watchdog

• Transmission range up to 200metres with 0.25mW ERP

• Available on 418MHz and 433.92MHz

• Status LED’s - Power, Comms, Tx/Rx ON

• 7.5V to 15Vdc via DB-9 connector, <15mA

• Baud Rate and Data protocols set via on-board DIP switch

• Transparent data packetizing and automatic code balancing

• Standard DB9 or 6x1Pin header option for custom hookup or for through-hole PCB insertion

• 1/4 wave wire antenna on board (shown coiled)

Data Protocols Supported

Single or multiple characters may be transmitted at data rates of 2400, 4800, and 9600. Code balancing is

automatic. Both eight and nine bit data protocols are fully supported.

Transmitted data can take any format providing there are no pauses in the transmission. Pauses will cause

data framing errors and should be avoided. For reliability we recommend that data packets are kept below 1K

bytes per single transmission. Large files should be transmitted as multiple packets using, for example ,

Z-modem, Kermit or Xon-Xoff protocols.

Order Code:

RTcomTx- 4xx (4xx refers to the operating frequncy of 418MHz or 433.92MHz)

RTcomRx- 4xx

Data / Power cable (data cable with D-type connectors and external power supply feed cable)

RTcomTx (actual size)

RTcomRx (actual

Functional Overview

The RTcomTx and the RTcomRx contains all the hardware and firmware required to make a highly compact ,

user friendly and transparent wire free link to RS232 serial interfaced devices. External power is supplied via

the DB9 connector and sourced typically from a PP3 type battery or a wall adaptor.

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RTcom Radio Modems Spezifikationen Seite 10