Kramer Electronics VS-81ETH - Manual (Page 12)

Connecting and Controlling the VS-81ETH
9
5.2 Controlling via RS-232 (for example, using a PC)
To connect a PC to the VS-81ETH unit, using the Null-modem adapter
provided with the machine (recommended):
Connect the RS-232 DB9 rear panel port on the Master VS-81ETH 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-81ETH 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 Master VS-81ETH unit, as Figure 5 illustrates (depending on
whether the PC has a 9-pin or 25-pin connector)
Figure 5: Connecting a PC without using a Null-modem Adapter