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Reference Information, cont'd
Relocating the ribbon cable and setting the jumper
If the SVS 100 is currently configured for RS-232 communication, the ribbon cable
must be relocated and the jumper must be reset for RS-422 communication. See
figure A-3.
IN P
Figure A-3 — RS-232 to RS-422 cable and jumper positioning
Replacing the top cover
A-4
SVS 100 Appendix
1.
Disconnect the ribbon cable from the RS-232 receptacle, noting that the
red stripe of the cable is positioned relative to pin #1 of the receptacle.
Both RS-232 and RS-422 receptacles are mounted with pin #1 located on
the same side, relative to the circuit board.
2.
Reconnect the ribbon cable to the RS-422 receptacle, as shown in
figure A-3. The red stripe of the ribbon cable must be positioned relative
to pin #1 of the RS-422 receptacle.
IN
O U
T
IN
U T
1
O U
T
IN P
U T
IN
2
IN
IN P
O U
U T
T
3
IN P
O U
A
U T
T
4
B
O U
T P
U T
L
C
1
R
L
3.
Remove and replace the jumper on the alternate jumper position, as
shown in figure A-3.
1.
Before replacing the top cover, be sure that all internal wiring is safely
within the enclosure.
2.
Carefully position the top cover and replace the fourteen screws which
were previously removed.
Ribbon Cable
I N
P U
2
T S
R
L
3
R
L
4
R
G E
O U
N L
T P
O C
L
U T
K
1
R
IN
R S
-2 3
2 /4
2 2
O U
T
R E
M O
T E
RS-232 Pin Connector
3
3
3
1
1
1
RS-232
RS-422
J23
RS-422 Pin Connector
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