Technical data

PAGE 148
Interfaces
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.
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.
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The digital and analogue Audio outputs on the modules are connected in
parallel. Consequently, the signal can be used on both interfaces simulta-
neously.
TAB. 22 PIN ASSIGNMENT: AES/EBU AUDIO INTERFACE
Socket: AES/EBU (SUB-D, 9-pole)
Pin Signal Electrical characteristics
1 AES/EBU IN a IEC-958 Professional
word clock: TTL level 5V
2 AES/EBU IN b
3GND word clock 48-kHz
4 AES/EBU OUT a
5 AES/EBU OUT b
6 GND AES/EBU IN
7 Word clock 48-kHz IN
8 Word clock 48-kHz OUT
9 GND AES/EBU OUT
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An AES/EBU Adapter Cable SUB-D, 9-pole to XLR/BNC is available (Order
No. 490091).
5
1
9
6