User's Manual

Installation
RFI-148 250W VHF Paging Transmitter User Manual Page 7 of 43
2.3 Product Installation
The back panel of the paging transmitter is shown below in Figure 1.
1. System
Ground
2. RF Output
3. External
Frequency
4. Ethernet
5. DC Input
24 V Nominal
6. DC SW
7. RF Diag
8. LIU
Interface
9. RS232
Figure 1: Paging Transmitter Back Panel
1. System Ground: External connection for system ground.
2. RF Output: Modulated RF output from the paging transmitter. N-type female connector.
3. External Frequency: External reference input for accurate channel synthesis. BNC female
connector.
4. Ethernet: Ethernet connection for configuration and diagnostics over UDP. RJ45 connector.
5. DC Input 24 V Nominal: 20-31.2 V DC Input voltage. Terminal block connector.
6. RF Diag: Sniffer port for diagnostics. BNC female connector.
7. DC SW: Power switch.
8. LIU Interface: Combined alarm and encoder interface. DC-37 female connector.
9. RS-232: Main serial port. DE-9 female connector.