Date printed: 24.01.12
80
D21m System
6.6 Serial/Merger Cards
6.6.1 Serial Card ( and ) A949.0437
It is possible to transmit any RS422 serial signals, such as MIDI or Sony
9-pin (machine control) through a MADI connection without losing any audio
channels or microphone control of the remote I/O box.
A 9-pin D-type connector can be found on the MADI I/O card (hub frame
side) as well as on the serial card of the remote I/O frame. This card is located
between slot 12 and the power supplies. The required baud rate is set on the
MADI HD card with a rotary switch.
The pinout of the RS422 connector can be set to ‘device’ or ‘controller’ with
a DIP switch, depending on the 3
rd
-party serial device connected.
Max. RS422 cable length 1000 m
Current consumption (5 V) 20 mA
Operating temperature 0-40 °C
RS422
Port
RS422-to-TTL
Converter
Backplane Connector
Pinout
Selector
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