Connecting the VP-725xl Presentation Switcher / Scaler
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6.2 The RGBS and RGsB PINOUTs
Table 3 defines the input progressive1 and interlaced 2 RGBS and RGsB
pinouts:
Table 3: RGBS and RGsB PINOUTS
Input Color Space PINOUT
VGA RGsB Red to PIN 1
Green + sync, to PIN 2
Blue to PIN 3
RGBS Red to PIN 1
Green to PIN 2
Blue to PIN 3
Hs (H and V) to PIN 13
YUV YPbPr Green + sync to Y
Blue to Pb
Red to Pr
6.3 Connecting to the VP-725xl via RS-232
You can connect to the unit via a crossed RS-232 connection, using for example,
a PC. A crossed cable or null-modem is required as shown in method A and B
respectively. If a shielded cable is used, connect the shield to pin 5.
Method A (Figure 4)—Connect the RS-232 9-pin D-sub port o n the unit via a
crossed cable (pin 2 to pin 3, pin 3 to pin 2, and pin 5 to pin 5) to the RS-232
9-pin D-sub port on the PC.
Note: There is no need to connect any other pins.
Figure 4: Crossed Cable RS-232 Connection
Hardware flow control is not required for this unit. In the rare case where a
controller requires hardware flow control, short pin 1 to 7 and 8, and pin 4 to 6
on the controller side.
Method B (Figure 5)—Connect the RS-232 9-pin D-sub port on the unit via a
straight (flat) cable to the null-modem adapter, and connect the null-modem
adapter to the RS-232 9-pin D-sub port on the PC. The straight cable usua lly
1 A display mode in which all the horizontal lines of an image are displayed in a single frame (one field)
2 A display mode in which a frame consists of two separate fields with the first field consisting of odd horizontal lines and the
second field even horizontal lines