Date printed: 24.01.12
82
D21m System
6.6.2 Serial Merger Card
(
and
)
A949.0438
This card is used to feed any Studer-internal control signals into the hub I/O
frame. A serial connection is made between the Studer product (such as a
Vista or OnAir 3000 console) and the
MASTER
connector of the card.
In SCore Live applications where the card is installed in the core frame or
in external D21m hubs, the host port must always be accessed through the
front-panel
MASTER
connector; this selection is done with a DIP switch that
has been added in versions A949.0438.22 and up.
Note:
An RS422 patch cable is required in order to connect the control signals
embedded in the HD link data stream via the HD/RS422 card and the serial
Merger card to the D21m backplane. Order no. C089.201171 (9-pin D-type,
28 cm).
In case of an OnAir 3000 console, the
SLAVE
connector may be used to
connect a second local I/O frame.
Max. RS422 cable length
1000 m
Current consumption
(5 V)
80 mA
Operating temperature
0-40 °C
RS422
Master
Port
8 × UART
MASTER
HD
RS422 / TTL
Converter
RS422 / TTL
Converter
Backplane Connector
RS422
Pinout
Selector
Merger
MUX
RS422
Slave
Port
MADI 1
MADI 2
MADI 3
MADI 4
MADI 5
MADI 6