Warwick X7220 manual Operation, Psu

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3.3LED Indicators

Eight LED’s on the front of the modem indicate the following states:

Transmit Data 1

Green

On when modem 1 is transmitting data.

Receive Data1

Green

On when a RF carrier of greater than 0.9uV is detected

PSU 1

Red

On when Modem 1 power supply is good.

Fail 1

Red

On when a fault is detected in Modem 1

Data 2

Green

On when modem 2 is transmitting data.

Receive Data 2

Green

On when a RF carrier of greater than 0.9uV is detected

PSU 2

Red

On when Modem 2 power supply is good.

Fail 2

Red

On when a fault is detected in Modem 2

3.4 Fuses

 

 

Fuse 1

1 Amp Fuse for modem 1 PSU

Fuse 2

1 Amp Fuse for modem 1 PSU

3.5Program Switch

Three way switch for changing the parameters of both modem 1 and modem 2.

Central

Run

Right

Program modem 1

Left

Program modem 2

3.6Alarm Reset Resets alarm states

3.7Antenna Connections

Two 50 ohm, N-Type Sockets.

Antenna 1

Socket for Antenna 1

Antenna 2

Socket for Antenna 2

3.8Power Supply

Three pin plug for 240V mains power supply is

4.0OPERATION

When power is applied to the Dual Redundant Base Station all the monitored parameters are checked along with the LED’s. If no faults are found modem 1 is enabled. The Duty Cycle Timer is enabled and this then cycles the two modems according to the time set in the service menu. ( 1 to 48 Hours)

If a fault is detected in the operational modem then the Fault LED will light, the Fault Relay will energise, an error code will be set in the service menu and the alternative modem will be selected.

A transmission is started by sending data to RD (pin 2) on the serial communication port. The operational radio modem places this data in the transmitter buffer memory while it checks to see if the RF. channel is free. If it is

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Contents Warwick Wireless Limited MANOR, Aston FLAMVILLE, LEICESTERSHIRE, LE10 3AQ EnglandTrouble Shooting Features Specification InterfacesConfiguration Operation Getting StartedFeatures Absolute Maximum Ratings SpecificationElectrical Characteristics MIN Typical MAX Dimension TransmitterInterfaces Operation PSUGetting Started Configuration RssiRssi Drbs OK Page Radio Transmission Trouble Shooting Help Line Number + 44 0 1455