9
JUMPER SETTINGS
The following table shows the default jumper settings and their function:
Jumper
Number
Default Position
Description
JP1
1-2 Out – 2-3 In
PTT open collector transistor output or relay selection
JP4
1-2 Out – 2-3 In
Active low versus active high selection for PTT Relay
JP8
1-2 Out – 2-3 In
Monitor open collector transistor output or relay selection
JP9
1-2 Out – 2-3 In
Active low versus active high selection for Monitor Relay
JP13
1-2 In – 2-3 Out
F1 open collector transistor output selection
JP14
1-2 In – 2-3 Out
F2 open collector transistor output or F1/F2 relay selection
JP15
1-2 Out – 2-3 In
Active low versus active high selection for F1/F2 Relay
JP20
1-2 In – 2-3 Out
Active low versus active high selection for COR Input
JP22
1-2 Out – 2-3 In
Leave as 2-3 In
JP25
1-2 In – 2-3 Out
22K versus 600 Ohm impedance selection
JP26
1-2 Out – 2-3 In
Leave as 2-3 In
JP27
1-2 In – 2-3 Out
4-Wire Option
JP36
1-2 In
Termination jumper
JP37
1-2 In
Termination jumper
JP38
1-2 In
Termination jumper
JP40
1-2 In
Termination jumper
JP41 NA
Not
used
JP42 NA
Not
used
JP43 NA
Not
Used
JP44 NA
Not
Used
JP45 NA
Not
Used
Jumper
Number
Default Position
Description
SJ1
1-2 Out – 2-3 Out
Future Use
SJ2
1-2 Out – 2-3 Out
Future Use
SJ3 In
Future
Use
SJ4 In
Future
Use
SJ5 In
Future
Use
SJ6 In
Future
Use
SJ7 In
Future
Use
SJ8 In
Future
Use
SJ9 In
Future
Use
SJ10 In
Future
Use
SJ11 In
Future
Use
SJ12
Out
Optional F1/F2 relay use instead of the open collector output
SJ13 In
Not
Applicable
SJ14 In
Not
Applicable
SJ15 Out
De-Emphasis
jumper
