Sony VPL-EX175 User Manual
16
VPL-FX30
D4
D5
D6
D7
(MSB)
(LSB)
(EVEN)
BIT
PARITY STOP
BIT
START
D3
D2
D1
D0
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.
The pin assignment of D-Sub 9 Pin and D-Sub 25 Pin is as follows.
D-Sub 9 Pin
D-Sub 25 Pin
Name
Shell = FG
1
FG
Grounding for safety protection or cable shield
3
2
TxD
Transmission data
2
3
RxD
Reception data
7
4
RTS
Transmission request
8
5
CTS
Transmission permission
6
6
DSR
Data set ready
5
7
SG
GND for signal
1
8
DCD
Data channel signal carrier detection
4
20
DTR
Data terminal ready
9
22
RI
Calling display (Presence/absence of calling signal)
Pin numbers indicated as D-Sub 25 Pin are not used.
Assured cable length: 15 m (However, assurance may not be applicable for some cables.)
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.
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.
. 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
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