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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Cascading Vertical Interval Video-Audio Matrix Switchers
16
4. Interconnect the V/A (video/audio) BUS DB9F connectors between the
VS-402XL/VS-602XL units
1
Figure 11
, as
illustrates, using a 9-wire flat cable
2
Attach the cable’s first DB9M connector to the V/A BUS 9-pin D-sub
connector on the first
VS-402XL
/
VS-602XL
unit
with DB9M connectors, as follows:
Attach the cable’s second DB9M connector to the V/A BUS 9-pin
D-sub connector on the second
VS-402XL
/
VS-602XL
unit
Continue attaching the DB9M connectors to the V/A BUS 9-pin D-sub
connectors on each
VS-402XL
/
VS-602XL
unit, up to and including
the eighth
VS-402XL
/
VS-602XL
unit
6. Set the SETUP DIP-switches, as section
6.2
describes. In particular:
Set the first
VS-402XL
/
VS-602XL
unit as MACHINE # 1 (when
operating via a PC or serial controller) and the following seven
VS-402XL
/
VS-602XL
units as MACHINE # 2 to MACHINE # 8,
according to
Table 4
Set DIP 4 ON on the first and last
VS-402XL
/
VS-602XL
units
(terminating the RS-485 line at 120
Ω
). Set Dip 4 OFF on the second
to seventh
VS-402XL
/
VS-602XL
units
Set Dip 5 ON on all eight
VS-402XL
/
VS-602XL
units (enabling input
expansion)
Set DIP 6 ON on all eight
VS-402XL
/
VS-602XL
units (enabling the
Reply option in accordance with Protocol 2000)
Set DIP 7 OFF on all eight
VS-402XL
/
VS-602XL
units (as the PC
connects via the RS-232 port)
Set DIP 8 OFF on all eight
VS-402XL
/
VS-602XL
units
Note: The output signals at OUTPUT 1 and OUTPUT 2 are the same on all
the cascaded
VS-402XL
/
VS-602XL
units.
1 Ensuring double output signal transmission on outputs 1A and 1B and on outputs 2A and 2B, on 2 combined machines
2 The flat cable should be kept as short as possible to preserve video quality and minimize crosstalk