KRAMER: SIMPLE CREATIVE TECHNOLOGY
Configuring the VP-727A Audio Switcher
10
6.2 Connecting a PC (via RS-232) to a Standalone VP-727A
1
You can connect a PC (or other controller) to a standalone
VP-727A
via the
RS-232 port for remote control and for upgrading the firmware.
To connect a PC to a
VP-727A
unit, using the Null-modem adapter provided
with the machine (recommended):
Connect the RS-232 9-pin D-sub rear panel port on the
VP-727A
unit to the
Null-modem adapter and connect the Null-modem adapter with a 9-wire flat
cable to the RS-232 9-pin D-sub port on your PC
To connect a PC to a
VP-727A
unit, without using a Null-modem adapter:
Connect the RS-232 9-pin D-sub port on your PC to the RS-232 9-pin
D-sub rear panel port on the
VP-727A
unit, forming a cross-connection
2
, as
Figure 4 illustrates
DB9 (To Presentation
Switcher / Scaler)
DB9 (From PC)
Figure 4: Connecting the PC
1 When the VP-727A is configured with the VP-727xl, the audio follows the video and the VP-727A cannot be controlled via
a PC
2 Also known as a Null-modem connection
