Sony SVT-S480ES User Manual
55
Pin assignment
RS-232C connector (D-sub 9-pin, female)
Pin No. Signal
Operation
Signal Direction
2
RXD
Receive data
VCR
T
Computer
3
TXD
Send data
VCR
t
Computer
7
RTS
Request to send
VCR
t
Computer
5
GND
Singnal ground
RS-485 connector (RJ-11)
Pin No.
A terminal signal
B terminal signal
1
Not used
Not used
2
Not used
Not used
3
A signal
B signal
4
B signal
A signal
5
Not used
Not used
6
Not used
Not used
1
6
1
2
3
4
5
6
1
6
1
2
3
4
5
6
1
6
1
2
3
4
5
6
1
6
1
2
3
4
5
6
A
B
RS-485
1
5
6
9
Make the connection to the RS-485 control terminal
using a modular cable (not supplied).
• If using a straight type cable, connect it between the
using a modular cable (not supplied).
• If using a straight type cable, connect it between the
A terminals, or between the B terminals (see
illustration below).
illustration below).
• If using a crossed type cable, connect it from the A
terminal to the B terminal, or from the B terminal to
the A terminal (see illustration below).
the A terminal (see illustration below).
ADDRESS
RS-485/RS-232C selector
RS-485 TERMINATE switches
(DIP switches)
RS-485/RS-232C selector
RS-485 TERMINATE switches
(DIP switches)
Switch No.
Operation
1 - 7
Set address (1 is lowest bit and 7 is
highest) (ON:1, OFF:0)
7 is effective when using RS-485 connector
highest) (ON:1, OFF:0)
7 is effective when using RS-485 connector
8
Not used
9
Select RS-485 or RS-232C
10
Terminate on/off when using RS-485
connector
connector
Cross type
1
6
ADDRESS
10
9
8
7
6
5
4
ON
3
2
1
TERMINATE
RS-485
RS-232C
ON
OFF
OFF
To terminal A
Straight-type cable
Cross-type cable
To terminal A
Straight type
not used
not used
not used
not used
not used
not used
not used
not used
RS-232C/RS-485 Interface