Using the VP-411DS 4x1 Automatic UXGA / Audio Switcher
5.4 Connecting a PC
You can connect a PC (or other controller) to the VP-411DSvia the RS-232 port for remote control, and for upgrading the firmware.
To connect a PC to a VP-411DSunit, using the Null-modem adapter provided with the machine (recommended):
Connect the RS-232 9-pin D-sub rear panel port on the VP-411DSunit 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-411DSunit, 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-411DSunit, forming a cross-connection1, as Figure 6 illustrates
PIN 5 Connected to PIN 5 (Ground)
PIN 3 Connected to PIN 2
PIN 2 Connected to PIN 3
| 9-pin D-sub | 9-pin D-sub |
| (From PC) | (To Switcher) |
| | |
If a shielded cable is used, connect the shield to PIN 5
Figure 6: Connecting the PC
1 Also known as a Null-modem connection
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