The RX4 receivers are a range of low cost 12 volt DC fixed receivers designed to work with all Scope POCSAG transmitters. They provide either relay outputs for switching application or serial output for interfacing to a PC or serial printer etc. Three versions are available:

Serial Output
Designed to interface to a PC, serial printer etc. This unit receives paging data from Scope transmitters and outputs either the complete data string or just the message via a standard 9 pin serial port.
Part reference: PRXSERL

4 Zone Relay Outputs
Ideal for use in switching applications, this unit receives triggers from Scope DigiLink and PageTek II programmable transmitters and provides relay outputs with LED zone indication. Normally configured for 'Change Of State' operation.
Part reference: PRX4

Serial & 4 Zone Relay Outputs
Operation as per the serial version (PRXSERL) plus it also has four latching relays with LED zone indication. These can be triggered by pager cap codes. Common reset is achieved by receiving a reserved cap code.
Part reference: PRX4SERL