Runco VHD-4402 User Manual

RS-232 PROTOCOL

9600 Baud
8 bits
No parity
1 Stop bit
ASCII
RxD of the PC or TxD of the VHD is on pin2
TxD of the PC or RxD of the VHD is on pin3
Gnd is pin 5
RTS of the PC or CTS of the VHD is on pin7 (not used)
CTS of the PC or RTS of the VHD in on pin8 (not used)

Command format <input><aspect ratio>

Inputs:

Aspect Ratios:

Power:

0 = Composite

A = Anamorphic

ON = Power on

1 = S-Video

L = LetterBox

OF = Power off

2 = Component

S = Standard (4:3)

3 = Pass Through

H = HDTV (for pass through)
C = Computer (for pass through)

To keep the currently selected aspect ratio or input, replace the letter/number with a dash "-"

Each command must be followed by a carriage return <CR>.

Examples:

2L will select the component input and change the aspect ratio to letterbox
-A will change the aspect ratio to anamorphic, but leave the input selection alone
1- will change the input to S-Video, but leave the aspect ratio alone

RS-232 Projector Control requires a cable terminated with male RJ-11 jacks at both ends.
Wiring is the same as for a phone (ie. in a cross configuration).

Projector

VHD-4402 ULTRA

N.C.

GND

RxD/TxD

GND

N.C.