User Guide
Kramer Electronics Ltd.
9
10 RS-232 CONTROL OF THE VP-722DS VIDEO SCALER
The Video Input selection and signal parameter settings for the VP-722DS can also be made via an external
control system by using the RS-232 port on the unit. If information for this control method is required, beyond
the scope of the instructions provided in this section, please contact Kramer Technical Support at:
www.kramerelectronics.com/searchdx.html. A disk is provided with the VP-722DS containing a sample
Windows Control Panel that permits remote control of the unit from a PC via RS-232.
* The connection between VP-722SC and RS-232 remote controller with modem cable.
* RS-232 transmission format:
Baud Rate: 9600bps Data Bit: 8 bits Parity: None Stop Bit: 1 bit
* Command/Response codes of RS-232 transmission:
(The command/response code is the combination of 3 characters.)
Remote Controller
→
Video Scaler
Command Code Comment
←
Response Code Comment
none OK1 video scaler power on ready
AU! AUTO AU0
AU1
AUTO OFF
AUTO ON
IN!
INPUT
IN0
IN1
IN2
IN3
IN4
IN5
S-video
Composite Video
PC1
PC2
PC3
PC4
OU!
OUTPUT
OU0
OU1
OU2
VGA
SVGA
XGA
SE!
SELECT
SE0
SE1
SE2
SE3
SE4
SE5
Horizon
Vertical
Hue
Color
Bright
Contrast
Pins definition of modem cable
Video Scaler Remote Controller
PIN
Definition
PIN Definition
1 NC
1 NC
2 TxD
2 RxD
3 RxD
3 TxD
4 NC
4 DTR
5 GND
5 GND
6 NC
6 DSR
7 NC
7 RTS
8 NC
8 CTS
9
NC
9
NC