Kramer Electronics VS-44HD - Manual (Page 15)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting Your VS-44HD
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6.5 Controlling via RS-232 (for example, using a PC)
To connect a PC to the VS-44HD unit, using the Null-modem adapter
provided with the machine (recommended):
Connect the RS-232 DB9 rear panel port on the VS-44HD unit to the
Null-modem adapter and connect the Null-modem adapter with a 9 wire
flat cable to the RS-232 DB9 port on your PC
To connect a PC to the VS-44HD unit, without using a Null-modem adapter:
Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear panel
port on the VS-44HD unit, as Figure 5 illustrates
Figure 5: Connecting a PC without using a Null-modem Adapter