9
VPL-HW15
_
EXT VIEW
_
1
5
6
9
D4
D5
D6
D7
(MSB)
(LSB)
(EVEN)
BIT
PARITY STOP
BIT
START
D3
D2
D1
D0
3. RS-232C
3-1. Connection
The RS-232C pin assignment is shown below.
REMOTE
: RS-232C (D-sub 9-pin, Female)
Pin No.
Signal name
Function
1 N.C.
_
2 RxD Receive
Data
3 TxD Transmit
Data
4 N.C.
_
5 GND Signal
Ground
6 N.C.
_
7 N.C.
_
8 N.C.
_
9 N.C.
_
3-2. Communication
Speci
fi
cations
.
Full duplex communication channels (Flow control not performed.)
.
Start-stop synchronism system
.
Baud rate: 38.4 kbps (bits per second)
.
The bit con
fi
guration is de
fi
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