Table of Contents
Advertisement
Pinout of the Serial/Keypad Port
The "KEYPAD A" and "KEYPAD B" ports on the rear panel of the ServSwitch™
Brand 8 x 2 Matrix Video Switch are RS-232 serial ports that use a subset of the
TIA-574 pinout on DB9 female connectors:
Pin
Direction
1
(reserved)
2
output from Switch
3
input to Switch
4
input to Switch
5
common
6
output from Switch
7, 8
(no connection)
9
(reserved)
APPENDIX: Pinout of the Serial/Keypad Port
Appendix:
Signal
(used by keypad, do not connect to other devices)
Transmit Data (TD)
Receive Data (RD)
Data Set Ready (DSR), signal level must be high in
order for the Switch to transmit
Signal Ground (SGND)
Data Terminal Ready (DTR), high signal indicates
that the Switch is ready to receive
(none)
(used by keypad, do not connect to other devices)
19
Advertisement
Table of Contents
