Appendix B. Setting Sync Signal Output Termination - Black Box AC1061A Manual

Appendix A. Cabling Pinouts
Table A-3. DB9 Male Serial connector
Pin 3 wire
1
2 RX
3 TX
4
5 Ground
6
7
8
9
Table A-4. T568B CAT5 pinout
APPENDIX A:Cabling Pinouts
Simplex
TX
Ground
13
CAT5 MULTI VIDEO SYSTEM.
Appendix B. Setting Sync Signal
Output Termination
In some cases, it may be necessary to disable the 75-ohm termination of the video
outputs on the CAT5 Multi Video System units. This can be done by opening the
case of each unit and installing jumpers on the circuit board. The settings
disable/enable the 75-ohm termination on individual units. For instance, changing
a transmitter termination affects the local monitor port only; it doesn't affect the
receivers. Conversely, changing a receiver affects the output port of the receiver,
not the transmitter. The following diagrams show the jumper locations for each
type of assembly reference the transmitter manual for transmitter settings.
RJ-45
75-ohm sync termination:
Local
To enable: JP3, JP4 jumpers OUT
Port
To disable: JP3, JP4 jumpers IN
VGA
Figure B-1. 1-port transmitter.
RJ-45
Port
75-ohm sync termination:
To enable: Both jumpers OUT
To disable: Both jumpers IN
Figure B-2. Receiver termination settings
14
Port
In