D21m System
6-48 D21m Modules Date printed: 25.09.07
6.6 Serial/Merger Cards
6.6.1 Serial Card ( and ) 1.949.437
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