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Rs-232C/Rs-485 Interface - Sony SVT-S168P Bedienungsanleitung

Time lapse videocassette recorder
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RS-232C/RS-485 Interface

Pin assignment
RS-232C connector (D-sub 9-pin, female)
1
6
Pin No. Signal
Operation
2
RXD
Receive data
3
TXD
Send data
7
RTS
Request to send
5
GND
Signal ground
RS-485 connector (RJ-11)
1
Pin No.
A terminal signal
1
Not used
2
Not used
3
A signal
4
B signal
5
Not used
6
Not used
6
1
not used
1
not used
2
3
4
not used
5
not used
6
Straight type
6
1
not used
1
not used
2
3
4
not used
5
not used
6
Cross type
48
(GB)
5
9
Signal Direction
VCR T Computer
VCR t Computer
VCR t Computer
6
B terminal signal
Not used
Not used
B signal
A signal
Not used
Not used
6
1
1
2
3
4
5
6
6
1
1
2
3
4
5
6
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
A terminals, or between the B terminals (see
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).
To terminal A
Straight-type cable
ADDRESS
RS-485/RS-232C selector
RS-485 TERMINATE switches
(DIP switches)
ADDRESS
ON
1
2
3
4
5
6
7
OFF
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
8
Not used
9
Select RS-485 or RS-232C
10
Terminate on/off when using RS-485
connector
RS-485
A
B
To terminal A
Cross-type cable
RS-485
TERMINATE
ON
8
9
10
OFF
RS-232C

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