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Field Work
2–11
2.7.2 Using a PC Onsite
Procedures !20 to !25 explain how to use a PC onsite.
!20 To connect a null-modem cable
1. Power off the Multi-Media unit.
2. Connect the 9-pin (or 25-pin) female connector of a null modem cable to one of
the PC’s serial ports. Connect the other 9-pin female connector to the RS-232
Port 2 connector at the back of the unit.
Fig. 16. Temporary use of a PC onsite.
A null-modem cable comes with your Multi-Media unit.
Fig. 17. Wiring diagram of a null modem cable
!21 To setup a terminal program
1. On the PC connected to a Multi-Media unit, start a terminal session. You can
use a program such as HyperTerminal—bundled with Microsoft Windows. The
commands for launching HyperTerminal are listed in table 6. The terminal
session is used to send commands to the Multi-Media Shell software on the
unit. A dialog appears, similar to the Connection Description in figure 18.