Technical data

PAGE 105
Interfaces
A2.3 Audio interfaces
The system incorporates analogue and digital AES/EBU Audio interfaces.
The interfaces can be configured via the front display and keypad or via the
PC software.
A2.3.1 Analogue Audio interface
A2.3.2 Digital AES/EBU Audio interface
The b-line XT Telephone Hybrid incorporates two digital Inputs/Outputs
which are physically one AES/EBU interface. The input 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. 9 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. 10 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. 11 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. 12 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