Warwick X7220 User Manual

WARWICK WIRELESS

WARWICK WIRELESS

WARWICK WIRELESSWARWICK WIRELESS

LIMITED

LIMITED

LIMITEDLIMITED

X7220 DUAL REDUNDANT BASE STATION

WARWICK WIRELESS LIMITED

THE MANOR, ASTON FLAMVILLE, LEICESTERSHIRE, LE10 3AQ ENGLAND

TEL: [phone] FAX: [phone] WEB: www.radiotelemetry.co.uk

INDEX

1.0 FEATURES

2.0 SPECIFICATION

3.0 INTERFACES

3.1 Communications Port 9 Way D Connector

3.2 Service Port 9 Way D Connector

3.3 LED Indicators

3.4 Fuses

3.5 Program Switch

3.6 Alarm Reset Switch

3.7 Antenna Connectors

3.8 Power supplies

4.0 OPERATION

5.0 GETTING STARTED

5.1 Basic Connections

5.2 Power Connections

5.3 Plug and Play

6.0 CONFIGURATION

6.1 Communication Port Menu

6.2 Service Port Menu

7.0 RADIO TRANSMISSION

7.1 Radio Frequency

7.3 Radio Propagation

7.4 Antennas

8.0 TROUBLE SHOOTING

8.1 No Data Transmission

8.2 No Data Reception

8.3 Corrupt Data

8.4 Radio Path

8.5 Help Line Number

9.0 WARNING

1.0 FEATURES

• Operates on international licensed and licence free radio bands.

• RF Bands: 147MHz to 174MHz VHF

400MHz to 500MHz UHF
868MHz to 920MHz UHF

• Conforms to ETSI 300-220, ETSI 300-113, ETSI 300-683, MPT1329.

• Two Independently X7200HP Radio Modems in hot standby.

• 17 selectable radio channels.

• RF Power 1W and 5W

• RS232/RS485 serial Interface with baud rates of 1,200 to 38,400.

• Service and monitoring RS232/RS485 serial port.

• Remote monitoring and configuration of outstation modems.

• Addressable individually and globally.

• On-line AT commands for network control.

• Variable Data Packets and error checking mode.

• 1U, 19 inch rack mounted enclosure.

The X7220-2 Dual Redundant Base Station consists of two X7200 Radio Modems, two power supplies and an
independent monitoring system. Only one Radio Modem is operational at any time with the other in hot standby. If
any of the monitored parameters such as bit error rate, RF Power, RF sensitivity, Power Supply should exceed
there pre-set limits then the second X7200 will be brought into service and the fault reported via the m onitoring
serial port and a relay contact clos ing. The in service radio modem will be changed autom atically after a pre-s et
duty time.

A 4K buffer memory is provided on each radio modem so that data can be passed asynchronously between the
host and modem without the need for hands haking. T he CTS output signal on the comm unication port can be used
for flow control in duplex applications. The over air data speed can be configured at either 5K bits/sec or 10K
bits/sec. This is independent of the baud rate and should be set to a lower value where poss ible for the best radio
propagation.

The set up menu of the X7220-2 can be accessed either by a PC running any terminal emulation program like
Hyperterminal in the Accessories Section or rem otely over the radio link. The set up menu is selected from the
serial serves and monitoring port. The menu configuration is permanently stored on EEPROM.

On-line “AT” com mands can be sent to the modem to change the address configuration or RF frequency during
normal operation s o that any modem c an “dial up” any other modem on the network. The repeater path c an also be
altered.

The X7220-2 Dual Redundant Base Station is housed in a 19 inch rack and can be powered from 240V power
source.

2.0 SPECIFICATION

ABSOLUTE MAXIMUM RATINGS

Storage Temperature ......................................... -30 to +85 Celsius

Operating Temperature ...................................... -10 to +55 Celsius

DIMENSIONS X7220HP UHF 1- 5W ................1U 19 Inch rack

ELECTRICAL CHARACTERISTICS MIN TYPICAL MAX DIMENSION NOTE

Frequency Range 458.500 458.950 MHz UK

400.000 480.000 MHz World

147.000 174.000 MHz Si
Channels 17
Channel Separation 12.5 25.0 25.0 KHz
Start up Time 5.0 10.0 30.0 mSecs With $ Selected
Modulation F3D, F1D
Power Supply 12 24 30 Vdc 110V, 240Vac

TRANSMITTER
RF Power X7220HP 1 5 W

Data Input RS232 -10 10 V
Data Input RS485 0 5 V
Frequency Deviation +/- 3.0 KHz 25KHz Channel
Modulation Rate DC 10.0 Kbps

Supply Current 0.89 3. 1 3.2 Amps

RECEIVER
IF Frequencies 45/455 MHz
Sensitivity

Bandwidth +/- 7.5 KHz
Data Output RS232 -10 10 V
Data Output RS485 0 5 V
Carrier Detect -10 10 V
Supply Current 80 90 105 mA
Supply Current Standby 0.005 0.007 0.01 mA

0.9

µV

3.0 INTERFACES

3.1 Communication Port 9 Way D Type Connector RS232/RS485
1 ALARM CONTACT OUTPUT

6 ALARM CONTACT OUTPUT

2 RS232 RD RECEIVE DATA INPUT

7 -VE RS485 INPUT/OUTPUT

3 RS232 TD TRANSMIT DATA OUTPUT

8 CTSI OUTPUT

4 NU

9 +VE RS485 INPUT/OUTPUT

5 0V INPUT
PIN 1 AL1 Voltage free, normally open contact

PIN 2 RD RS232 Receive serial data from host
PIN 3 TD RS232 Transmit serial data to host.
PIN 4 NU Not Used
PIN 5 OV 0V common for host.
PIN 6 AL2 Voltage free, normally open contact
PIN 7 –VE RS485 Bi-directional data.
PIN 8 CTS Brought low by the m odem when a RF c arrier is detected or the r eceiver buf f er m em ory is full.

This can be connected to RTS on the host to inhibit data from the host in duplex operations.

PIN 9 +VE RS485 Bi-directional data.

3.2 Service Port 9 Way D Type Connector RS232/RS485
1 NOT USED

6 CONFIGURATION MODE INPUT

2 RS232 RD RECEIVE DATA INPUT

7 -VE RS485 INPUT/OUTPUT

3 RS232 TD TRANSMIT DATA OUTPUT

8 NOT USED

4 NU

9 +VE RS485 INPUT/OUTPUT

5 0V INPUT
PIN 1 NU Not Used

PIN 2 RD RS232 Receive serial data from host
PIN 3 TD RS232 Transmit serial data to host.
PIN 4 NU Not Used
PIN 5 OV 0V common for host.
PIN 6 CON Configuration input. Connecting 0V to this input will send the configuration menu to the host

when the power is applied. It is left open circuit for normal operation.
PIN 7 –VE RS485 Bi-directional data.
PIN 8 NU Not Used.
PIN 9 +VE RS485 Bi-directional data.