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Interfaces
A3.3 Audio interfaces
The standard system incorporates analogue and digital AES/EBU Audio in-
terfaces. The interfaces can be set via the front display and keypad or via the
PC software.
A3.3.1 Analogue Audio interface
A3.3.2 Digital AES/EBU Audio interface
The MAGIC TH2 Telephone Hybrid incorporates optional two digital In-
puts/Outputs which are physically one AES/EBU interface. The input as well
as the output has a digital sample rate converter providing that a digital
source with 32, 44.1 or 48-kHz can be connected directly. For external clocking
(48-kHz only) the word clock input or output may be used.
TAB. 10 PIN ASSIGNMENT: ANALOGUE INPUT (AUDIO 1/2 IN)
Socket: XLR
Pin Signal Electrical characteristics
1 Analogue GND Incoming level: adjustable -3 .... +9 dBu
Impedance: > 25 kΩ
Head room: 6 dB
2 AUDIO IN a
3 AUDIO IN b
TAB. 11 PIN ASSIGNMENT: ANALOGUE OUTPUT (AUDIO 1/2 OUT)
Connector: XLR
Pin Signal Electrical characteristics
1 Analogue GND Outgoing level: adjustable -3 .... +9 dBu
Impedance: < 50 Ω
Head room: 6 dB
2AUDIO OUT a
3AUDIO OUT b
TAB. 12 PIN ASSIGNMENT: DIGITAL INPUT (AES IN)
Socket: XLR
Pin Signal Electrical characteristics
1 Analogue GND IEC-958
2 AUDIO IN a
3 AUDIO IN b
TAB. 13 PIN ASSIGNMENT: DIGITAL OUTPUT (AES OUT)
Connector: XLR
Pin Signal Electrical characteristics
1 Analogue GND IEC-958
2AUDIO OUT a
3AUDIO OUT b
Push
12
3
2
1
3
Push
12
3
2
1
3
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