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Connecting a Null Modem Cable
FIGURE 34
Peripheral Side
25-pin connector on cable
end that plugs into a
computer or printer.
Sprint Side
25-pin connector that
plugs into the port labeled
RS-232 IN
on the back of
Sprint.
Pin 2 on Sprint goes to pin 3 on the peripheral.
Pin 3 on Sprint goes to pin 2 on the peripheral.
Ground goes from pin 7 to pin 7.
1
2
3
7
13
1
2
3
7
13
Ground
Receive
Transmit
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