Kramer Electronics VS-162AVRCA - Manual (Page 18)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing the Audio-Video Matrix Switcher
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6.4.1 Connecting the RS-232 Control Interface
Connect several switchers (from the series of 16x16 matrix switchers) and the
control unit in an RS-232 daisy chain arrangement, with or without using a
Null-modem adapter, as Figure 9 illustrates.
The RS-232 daisy chain switcher arrangement is transparent. This lets you
arrange the switchers (from the series of 16x16 matrix switchers) according to
your requirements, and not according to a fixed sequence dependent on the
MACHINE # and/or MACHINE ADDRESS #.
Figure 9: Connecting a PC to 4 Units