Studer D19m, Инструкция по эксплуатации, Страница: 19 / 100

D19m Technical Description
Date printed:
30.06.20
D19m E5
GND
not used
BACKPLANE 1.940.550 (VIEW FROM THE REAR)
ANALOG I/O
DIGITAL I/O SYNC / MUTE CLOCK IN / AES
TDM
OPERATION
STANDALONE
MODE
(2 cards)
GND +5 V
+5 V
GND
AGND
–15 V
+15 V
PW-
FAIL
SHT-
DWN
SYNC MODE
(JP1...JP48)
DS1, DS2: see below
1.2.1 Power Supplies
The 3U frames contain two supply units:
+5 V/20 A (1.940.606 or, in earlier racks, 1.940.601)
±15 V/3.4 A (1.940.607 or, in earlier racks, 1.940.602)
The supply units are plug-in modules. For redundant supply configurations,
a special rear panel is required.
1.2.2 Connector Panels
For audio signals, a variety of connector panels can be used (see chapter
1.4).
1.2.3 Backplane 1.940.550
(installed in Rack versions 1.940.592.xx-V and 1.940.595.xx-V)
The .550 backplane is used for applications with up to 16 audio cards.
However, it cannot be used together with the RCC controller card and
Mic/Line input cards.
16 identical card locations are available. The sync input is connected to the
last, i.e. the 16
th
card location. The card address is given by the backplane
hardwiring, i.e. by the card’s position within the frame. There is only one
jumper per card for selecting stand-alone or TDM bus mode.
For the connection to the rear panel, there are connectors for digital I/O,
analog I/O, and sync/mute for each card location (see table).