
Appendix A Technical Specifications
RFI-148 250W VHF Paging Transmitter User Manual
Page 28 of 43
12
Combined Alarm
Output
13
N/A
14
Power Supply Alarm
Output
15
Tx Data L-bit
Input
16
Tx Data H-bit
Input
17
LIU Detect
Input
18
Tx Data Clock
Input
19
GND
20
Reference Out-of-Lock Alarm
Output
21
High Temperature Alarm
Output
22
High Output Power Alarm
Output
23
Spare Alarm 3
Output
24
Spare Alarm 4
Output
25
N/A
26
Exciter Out-of-Lock Alarm
Output
27
N/A
28
N/A
29
Low Output Power Alarm
Output
30
High VSWR Alarm
Output
31
Fan Failure Alarm
Output
32
+5 V
Output
33
+5 V
Output
34
+12 V
Output
35
+12 V
Output
36
+24 V (Note: identical to DC input voltage)
Output
37
+24 V (Note: identical to DC input voltage)
Output
Table 7: LIU Interface Pin Out