Kramer Electronics VP-23RC user manual Connecting an RS-232 Port to a PC

Controlling the VP-23RC

8.1.1Connecting an RS-232 port to a PC

You can connect a PC to the VP-23RCvia an RS-232 port, as defined in Table 7:

Table 7: Connecting an RS-232 Port to a PC

RS-232 Rear Panel Port Location		For…
Port 1 in the CONTROLLER area	￿	Media/Room Controller firmware upgrade (see section 10￿ .2)
RS-232 port in the SWITCHER	￿	Presentation Switcher firmware upgrade (see section 10￿ .1)
CONTROL area
	￿ Controlling the VP-23RCvia a PC (see section 8)￿
	￿ Controlling other Kramer machines that are connected to
		the VP-23RCvia RS-485 (see section 8￿.2)

To connect a PC using the Null-modem adapter provided with the machine (recommended method):

￿Connect the RS-232 9-pin D-sub rear panel port1 on the VP-23RCto the Null-modem adapter2 via a 9-wire flat cable and connect the Null-modem adapter to the RS-232 9-pin D-sub port on your PC

To connect 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-23RC, as Figure 11 illustrates

PIN 5 Connected to PIN 5 (Ground)

PIN 3 Connected to PIN 2

PIN 2 Connected to PIN 3

Female DB9 (From PC)	Male DB9
PIN 4 Connected to PIN 6
PINS 8, 7, 1 Connected together
If a Shielded cable is used, connect the shield to PIN 5

Figure 11: Connecting a PC without using a Null-modem Adapter

1 Select the RS-232 port according to your needs, as defined in Table 7

2 For the male RS-232 port (port 2 in the CONTROLLER area), use a male-to-female adapter

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