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RF RS232 Quick Setup Manual

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RS232 R
•
RS-232 Compatible
•
Selectable Baud Rate 1200bps – 38.4Kbps
•
Range up to 800 Metres
•
European Operation 868MHz
•
RF Power 0-7 dBm
•
Network Configurable
•
Transparent or Data verified communications modes
•
4 User Configurable Digital I/O Channels
•
Standard Hayes Command Set
•
Internal LED indication of Power and Data TX & RX
•
12Vdc Power Supply
•
Conforms to ETSI 300-220
•
Requires no radio licence to operate
•
Tough ABS enclosure
Description
The R.F. Solutions 232C-868FR1 radio modem provides fast and reliable RF data communications at
an exceptionally competitive price. Whilst the RF modem is simple to use it is also highly adaptable and
can be used in a wide variety of applications.
The modems can be configured for various operating modes to
provide:
1. An 'invisible' RS232 point to point link, reproducing the
function of a half duplex RS232 cable.
2. A RS232 point to point link with data flow control to provide
data verification.
3. A functionality similar to that of a client/server network,
where each modem is assigned an address with a
maximum of 255 clients per network and a maximum of
65535 networks.
4. Point to point data transfer for up to four digital I/O signals
with continuous resend and automatic data
acknowledgement.
The modem is supplied in a tough ABS enclosure, with wall mounting lugs. The external 868MHz
antenna offers a range of up to 600 metres line of sight. The modem is supplied with an RS232 cable
and requires only a 9-12Vdc power supply.
DS232-4 June '04
M
ADIO
ODEM
©2004 Reg. No. 227 4001, ENGLAND
232C-868FR1
Page 1

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Summary of Contents for RF RS232

  • Page 1 The modem is supplied in a tough ABS enclosure, with wall mounting lugs. The external 868MHz antenna offers a range of up to 600 metres line of sight. The modem is supplied with an RS232 cable and requires only a 9-12Vdc power supply.

  • Page 2: Table Of Contents

    RS232 R 232C-868FR1 ADIO ODEM Contents Technical Specifications ................. 3 Functional description ................3 Status LED’s ..................... 3 Connections ....................3 Electrical Characteristics................4 Temperature Range and Dimensions ............4 Software Specifications................... 5 Operating modes ..................5 Quick Setup Guide..................8 Hayes or ‘AT’...

  • Page 3: Technical Specifications

    Please refer to section 3.3 for control information when using the modem in I/O copy mode. 1.3.2 Power The RF Modem requires a 9 - 12V @ 100mA power source. On the power jack the centre is +ve connection. DS232-4 June ’04 ©2004 Reg.

  • Page 4: Electrical Characteristics

    RS232 R 232C-868FR1 ADIO ODEM 1.3.3 RS232 Connector The RF Modem interfaces to the host computer via an RS232 connection using a standard DB9 connector as shown in the diagram below. PC Serial Port RF M odem PC Serial Port...

  • Page 5: Software Specifications

    Software Specifications 2.1 Operating modes The RF modem is able to operate in four different modes which can be configured by setting register values using AT commands. Sections 2.2 - 2.4 give a full explanation of how to program the registers, the operation of the different modes is explained in detail in the following paragraphs.
  • Page 6 RS232 R 232C-868FR1 ADIO ODEM In «Transparent Secured Mode», a time-out is defined to indicate the end of a frame. This time-out is a programmable parameter (Register S214) separating each frame from the next one. 2.1.3 Flow control Two types of flow control are available: •...
  • Page 7 ACK -> ACK 2.1.6 I/O Copy mode In I/O Copy mode the I/O lines of a RF modem are copied to the other RF Modem. The following registers have to be programmed: • Master: S220=6 and S260 for the I/O configuration.

  • Page 8: Quick Setup Guide

    1. Install the MTC workbench software, supplied on the bundled CD onto your PC. 2. Connect your modem to the COM port of your PC using the supplied RS232 cable, apply power to the modem and load the MTC workbench software. The PWR and RTS LEDs will now be on.

  • Page 9: Hayes Or 'At' Mode

    RS232 R 232C-868FR1 ADIO ODEM 2.3 Hayes or ‘AT’ Mode The Hayes or 'AT' commands comply with the Hayes protocol used in PSTN modem standards. This ‘AT’ protocol or Hayes mode is used to program the modem parameters, based on the following principle: •...

  • Page 10: Radio Test Commands

    Serial link. 2.5 Radio Test Commands These special AT commands are integrated into the RF modem in order to make measurements during continuous transmission, and are primarily used during radio tests (radiated power, bandwidth, etc.) to show conformance to the ETS 300 220 standard.
  • Page 11 RS232 R 232C-868FR1 ADIO ODEM S212 Parity Indicates the parity on the serial link: '1' -> No parity (default value) '2' -> Even Parity '3' -> Odd Parity S213 Number of Number of Stop bits on the serial link: Stop Bits '1' ->...

  • Page 12: Ordering Information

    Email sales@rfsolutions.co.uk http://www.rfsolutions.co.uk RF Solutions is a member of the Low Power Radio Association All Trademarks acknowledged and remain the property of the respected owners Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability with respect to the accuracy of such information.

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