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I n t e r f a c e s
P A G E 1 4 8
A4.8
Audios interfaces on the optional AES/EBU/ANALOGUE Module
There are two digital inputs/outputs or two additional analogue inputs/out-
puts available on the AES/EBU/ANALOGUE Module. The configuration is
made using the Windows PC software.
The digital and analogue Audio outputs on the modules are connected in
parallel. Consequently, the signal can be used on both interfaces simulta-
neously.
A4.8.1
AES/EBU Audio Interface
The AES/EBU digital Audio interface is implemented as a 9 pole SUB-D
socket. Therefore, the ISDN Telephone Hybrid has two digital inputs/out-
puts on one physical AES/EBU interface. The input as well as the outputs,
have their own sample rate converters enabling a digital source of 32, 44.1 or
48-kHz to be connected directly. For synchronisation to an external clock
(only 48-kHz) the word clock input or output may be used. This is imple-
mented on the adapter as BNC socket.
TAB. 22
1
5
Socket: AES/EBU (SUB-D, 9-pole)
9
6
Pin
1
2
3
4
5
6
7
8
9
An AES/EBU Adapter Cable SUB-D, 9-pole to XLR/BNC is available (Order
No. 490091).
PIN ASSIGNMENT: AES/EBU AUDIO INTERFACE
Signal
AES/EBU IN a
AES/EBU IN b
GND word clock 48-kHz
AES/EBU OUT a
AES/EBU OUT b
GND AES/EBU IN
Word clock 48-kHz IN
Word clock 48-kHz OUT
GND AES/EBU OUT
Electrical characteristics
IEC-958 Professional
word clock: TTL level 5V
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