ZETRON 025-9581M, Installation And Maintenance Manual

Page: 160 / 196

Appendix A: Details of Model 6203/6204 Hardware
160 025-9581M
Jumper Details
There are 15 selectable jumpers on the Model 6203 Transponder circuit board and four on
the Model 6203 Power Supply circuit board. The position of these jumpers affects the
performance of the Model 6203.
Transponder Board Jumpers
The Transponder circuit board is located on the hinged cover of the Model 6203 case.
Please see
Figure 49 on page 148 for the relative locations of the jumpers on this board.
The following table provides a quick reference of each jumper on the transponder board.
The default setting for each jumper is in bold face type.
Table 9: Transponder Board Jumpers
1
A special “summing” jumper is used on JP14, except in cases where the M6203 or M6204 is used
in a Model 26-based system to replace a Model 6. In that situation, use a regular jumper on A or B as
appropriate.
Jumper Description Position A Position B No Jumper
JP1 Ram Select 32K 8K 8K
JP2 JP2 is for testing purposes only and should otherwise never be installed
JP3 VOX Control VOX Disabled VOX enabled VOX enabled
JP4 FFSK RCV
Select
Bypass AGC Enables AGC Prevents reception of all data
from Model 26
— — TEL PWR RAD No Jumper
JP5 FFSK Output
Range
Middle Output
Level
Highest Output
Level
Lowest Out-
put Level
Same as TEL
(Middle Output)
JP6 The posts for jumper JP6 are not normally installed
JP7 The posts for jumper JP7 are not normally installed
JP8 This jumper is no longer used. Leave it set to the default position.
JP9 COR Input
Pull-Up
Pulled-up
(default)
Floating Floating
JP10 4-Wire RCV
Impedance
600
Ω
10 k
Ω
10 k
Ω
JP11 Baud Rate for J6 9600 4800 2400
JP12 J6 Serial Data
Received On
A
(Pin 2)
B
(Pin 4)
No Jumper
JP13 J1 Serial Data
Received On
A
(Pin 2)
B
(Pin 4)
No Jumper
JP14 Source of Audio
to PA
(2)
PA audio from
normal Rx pair
PA audio from
AUX input on J4
No audio
JP15 Auxiliary Audio
RCV Impedance
600
Ω
10 k
Ω
10 k
Ω