The first generation
K2 Summit system RS-422 interface conforms to
ANSI/SMPTE 207M-1997 standard (SMPTE 422).
Pinouts for the individual DB9 connectors are as follows:
| Pin #
|
Signal
|
Description
|
| 1
|
GND
|
Frame Ground
|
| 2
|
-TXD
|
Differential Transmit Data (low)
|
| 3
|
+RXD
|
Differential Receive Data (high)
|
| 4
|
GND
|
Transmit Signal Common
|
| 5
|
NC
|
Spare
|
| 6
|
GND
|
Receive Signal Common
|
| 7
|
+TXD
|
Differential Transmit Data (high)
|
| 8
|
-RXD
|
Differential Receive Data (low)
|
| 9
|
GND
|
Signal Ground
|
