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2.4.2 Interface connection, pin assignment
An RS-232 interface cable must be used to
connect the plotter and the oscilloscope. The
cable is connected to the oscilloscope on the 25-
pin 'D' sub-miniature socket at the rear of the
unit.
The following figure shows the connector/socket
pin assignment.
2.4.3 Setting the DIP switch (alongside the inter-
face)
This switch configuration is used to adapt the
oscilloscope to the connected peripheral devices
(printer, computer, etc.).
Example 1:
Connecting an HP-7475A plotter (baud rate:
9600)
Set the DIP switch as follows:
1 2 3 4 5 6 7 8
1 1 0 0 0 0 1 1
(on oscilloscope side)
9 8 7 6 5 4 3 2 1
S2 S1 Y US A3 B4 B3 B2 B1
00 0 0 0 1 0 1 0
(Plotterside)
Example 2:
Connecting a HITACHI 681-XA plotter (baud
rate: 9600 bauds)
1 2 3 4 5 6 7 8
1 1 0 0 0 0 1 1
(Oscilloscope side)
1 2 3 4 5 6 7 8 9 0
0 1 1 0 1 1 0 1 0 0
(Plotterside)
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