Radio Pager System
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Introduction
The radio pager system, when connected to the analogue addressable control panels, can be used to transmit both text and numeric messages direct to pocket pagers. Pagers will display Fire/Fault conditions including Sensor location text. Up to 9,999 pagers can be connected to the ConneXions unit.
The ConneXions unit is a POCSAG data display radio paging system. The standard transmitter can quite easily extend up to a range of 1 mile and will provide good propagation on most industrial sites, covering an area with just a quarter wave antenna connected directly to the unit. If coverage of more than a mile is required, other antennae are available. The UCI unit is designed to interface data from the panel to the ConneXions unit. This unit is programmed to monitor data from the panel's parallel printer port. This data in turn is formatted into a valid paging command, then sent to the ConneXions transmitter for onward transmission to the selected pager.
Technical Introduction
The radio pager system set up has four separate units which are as follows:-
• ConneXions Unit
• UCI Unit
• Opto Isolator
• Pager
ConneXions Unit
The ConneXions unit is a POCSAG data display radio paging system that can be used to transmit both text and numeric messages directly to pocket pagers. Up to 9,999 pagers can be supported on any one system. The standard transmitter can quite easily provide ranges up to a mile and will provide good propagation on most industrial sites, covering a considerable area with just a quarter wave antenna ( BNC terminated ) connected directly to the unit. If coverage of more than a mile is required, other antennae are available.
Note: This system requires a valid radio communications agency licence for operation in the UK. It is the user's responsibility to apply for this licence.
UCI Interface Unit
The UCI unit is designed to interface data from panel to the ConneXions unit. This unit is programmed to monitor data from the panel's parallel printer port. This data in turn is formatted into a valid paging command, then (via opto isolation) is sent to the ConneXions transmitter for onward transmission to the selected pager.
It is recommended that the maximum distance between panel and UCI unit is 1 metre and the recommended maximum distance between UCI and opto is 3 metres. These connections should be made using screen cable.
UCI Interface Unit
The in-line opto isolator is required to isolate ground potentials between UCI and ConneXions Unit. The opto also provides protection against spurious voltage surges and reduces mains induced noise.
Pager
The pager is an alphanumeric pager and can display up to 4 lines of information, with each line being capable of displaying up to 16 characters. The pager is equipped with multiple beep types and multiple message memories. All screens can be scrolled.
The pager is equipped with a real time clock, and is also capable of date stamping each message received.
Technical Specifications
ConneXions Mark 2 V6 Mains Operated Unit
Mains Input - 230V 50Hz
Mains power Consumption - 6W MA
Operating voltage - 13.8V DC
Power Consumption - 50mA Standby , 300mA transmit.
Internal Battery - 0.7hA Battery Standby 8 Hours.
Power output - 500mW
Frequency Range - 450-470 MHz
Adjacent Channel - better than 200nW @ 4.5 KHz deviation
Model Number - Connexions 11 10056 V6
Transmitter Type Approval No. - 10056 V6
Approvals - CE
Comms Baud Rate Port RS232 - PL1 , PL2, 1200 Baud
Comms Baud Rate Port RS232 - PL3 , 9600 Baud
UCI Interface Unit
Minimum D.C Voltage - 5 Volts D.C (Power from Panel Printer port)
External Supply - 12 Volts D.C ( Optional Supply )
Power Consumption - 50mA
Comms Port ( input ) - LPT1 Parallel Printer Port.
Comms Port (output ) - COMS 2 , RS232
OPTO Isolator
Farnell Part Number - 648 - 942
D.C Voltage - 8 to 25 Volts D.C
Comms Baud Rate - Up to 9600 Baud Rate
Part Numbers
2500/108 Radio pager transmission unit, complete with twin doored enclosure - Space for Discovery 4 loop or Nexus 2 loop panel
2501/226 NEC 80 character message pager