User's Manual

Kramer Electronics Ltd.

VM-3DT - Operating the VM-3DT

Operating the VM-3DT

This section describes how to:

• Route the IR and RS-232 signals via the HDBT ports

(see Routing the IR and RS-232 Signals on page 6

• Acquire the EDID (see Acquiring an EDID on page 9).

• Perform firmware upgrade via K-Upload (see Upgrading the Firmware on page 10).

Routing the IR and RS-232 Signals

VM-3DT transports IR and RS-232 signals between the HDBT input and the three HDBT

outputs. Each signal can pass bidirectional commands via the VM-3DT HDBT ports (one input

and three outputs).

The IR/RS-232 signal routing is set via the SETUP DIP-switches .

Setting the DIP-Switches for Routing

Set the DIP-switches as defined by the following table:

Output #

IR Routing is

enabled when:

RS-232 Routing is

enabled when:

Figure 3: VM-3DT DIP-Switches

OUT 1

DIP 1 – OFF (up)

DIP 5 – OFF (up)

OUT 2

DIP 2 – OFF (up)

DIP 6 – OFF (up)

OUT 3

DIP 3 – OFF (up)

DIP 7 – OFF (up)

DIP-switches 4 and 8 are reserved for

future use.

By default, all DIP-

switches are set to OFF

(up)

For example, in the DIP-switch setup shown in Figure 4, DIPs 1, and 6 are set to OFF (up).

This means that IR signals can traverse between IN and OUT 1 ports and RS-232 commands

can traverse between IN and OUT 2 ports. DIP-switches 2, 3, 5, and 7 are set to ON (down)

and are therefore disabled.

Figure 4: VM-3DT DIP-Switches Setup