Rs-232C; Connection; Communication Specifi Cations - Sony VPL-VW95ES Protocol Manual

3. RS-232C

3-1. Connection

Communication is enabled by the use of a D-Sub 9 Pin cross (reverse) cable.
The pin assignment of D-Sub 9 Pin and D-Sub 25 Pin is as follows.
D-Sub 9 Pin D-Sub 25 Pin
Shell = FG 1
3 2
2 3
7 4
8 5
6 6
5 7
1 8
4 20
9 22
Pin numbers not indicated as D-Sub 25 Pin are not used.
Assured cable length: 15 m (However, assurance may not be applicable for some cables.)
The software for controlling the projector from a PC is intended for performing transmission and recep-
tion for only the TxD and RxD lines.
Therefore the handshake normally performed by RS-232C is not necessary.
3-2. Communication Specifi cations
. Full duplex communication channels (Flow control not performed.)
. Start-stop synchronism system
. Baud rate: 38.4 kbps (bits per second)
. The bit confi guration is defi ned as follows.
1 START Bit + 8 DATA Bits + 1 PARITY Bit + 1 STOP Bit
START D0 D1
BIT (LSB)
EVEN Parity ................ Total number of "1"s from D0 to D7 is an even number. 8 0
................ Total number of "1"s from D0 to D7 is an odd number. 8 1
VPL-VW95ES
FG Grounding for safety protection or cable shield
TxD Transmission data
RxD Reception data
RTS Transmission request
CTS Transmission permission
DSR Data set ready
SG GND for signal
DCD Data channel signal carrier detection
DTR Data terminal ready
RI Calling display (Presence/absence of calling signal)
D2 D3 D4 D5
Name
D6 D7 PARITY STOP
(MSB) (EVEN) BIT
11 (E)