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3.4
Connecting Peripheral Units
Notice
When connecting peripheral units, ensure that the components have industrial
capability.
Connecting the Printer to the Parallel Port
Proceed as follows to connect your printer:
1. Separate the Box PC from the mains and switch off the printer.
2. Plug the printer cable into the LPT1 parallel port.
3. Connect the printer cable to the printer.
4. Screw the connector tight at the interface port.
Figure 3-7 Position of the Printer Ports
Caution
Switch the unit off before connecting the parallel printer to the LPT 1 port (the
printer should also be switched off).
Make sure that you use the correct port. If you use the wrong port or wrong
connecting cables, the port may be damaged.
Before plugging in the cables, the electrostatic charge of your body, the unit, and
the cables must be equalized. To do this, touch the mounting plate for the ports on
the left-hand side of the unit. Only use original connecting cables.
SIMATIC Box PC 840 Manual
A5E00085984-04
Setting Up and Operating the SIMATIC Box PC 840
LPT 1
socket (parallel)
COM 2
port (serial)
COM 1
socket (serial)
3-11
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