Kramer Electronics VP-161xl - Manual (Page 22)

Connecting an XGA / Audio Switcher
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6.4.3 Example: Connecting a Set of Three Cascaded VP-81xl Units
In this example, 22 inputs are connected using three looped VP-81xl units,
with control via a single RS-232 port. You can route any one of the 22 inputs
to the XGA / Audio acceptor, as Figure 11 illustrates 1 .
To connect a set of three looped VP-81xl units with 22 inputs, do the following:
1. On the first VP-81xl unit, connect the:
XGA HD15F OUTPUT connector to the XGA INPUT 1 HD15F
connector on the second VP-81xl unit
AUDIO OUTPUT terminal block connector to the Audio INPUT 1
terminal block connector on the second VP-81xl unit
2. On the second VP-81xl unit, connect the:
XGA HD15F OUTPUT connector to the XGA INPUT 1 HD15F
connector on the third VP-81xl unit
AUDIO OUTPUT terminal block connector to the Audio INPUT 1
terminal block connector on the third VP-81xl unit
3. On the third VP-81xl unit, connect the:
XGA HD15F OUTPUT connector and the AUDIO OUTPUT
terminal block connector to the XGA/Audio acceptor
4. Connect the XGA HD15F INPUT connectors 1 to 8 and the Audio INPUT
terminal block connectors 1 to 8 on the first looped VP-81xl unit to the
XGA/Audio sources 1 to 8.
5. Connect the XGA HD15F INPUT connectors 2 to 8 and the Audio INPUT
terminal block connectors 2 to 8 on the:
Second looped VP-81xl unit to the XGA/Audio sources 9 to 15
Third looped VP-81xl unit to the XGA/Audio sources 16 to 22
6. Set the dipswitches as per Table 8 and Table 9. In particular, set:
Each VP-81xl unit to MACHINE # 1
The first VP-81xl unit to MACHINE ADDRESS # 1, the second
VP-81xl unit to MACHINE ADDRESS # 2, and the third VP-81xl
unit to MACHINE ADDRESS # 3
DIP 8 on the third (and Last in Daisy-chain)
VP-81xl unit to ON
7. Control via RS-485 (see Figure 8) or via RS-232 (see Figure 10).
1 Only the video connections are shown. Audio should be connected in a similar manner