A2.3 Audio Interfaces; A2.3.1; Analogue Audio Interfaces; A2.3.2 - AVT MAGIC TH6 POTS Hardware & Software Manual

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 interfaces

MAGIC TH6 provides two analogue Audio (Audio 1, Audio 2) inputs and
outputs.
For the inputs XLR sockets and for the outputs XLR connectors are available.
The pin assignments of the sockets and connectors are shown in TAB. 9 and
TAB. 10.
TAB. 9
Push
Socket: XLR
2 1
Pin Signal
3
1 Analogue GND
2 AUDIO IN a
3 AUDIO IN b
TAB. 10
Connector: XLR
1 2
Pin Signal
3
1 Analogue GND
2 AUDIO OUT a
3 AUDIO OUT b

A2.3.2

Digital AES/EBU Audio interfaces

The MAGIC TH6 Telephone Hybrid provides four digital Audio inputs and
outputs which are physically two AES/EBU interfaces.
A 15-pin Sub-D socket provides the digital AES/EBU interfaces. As an option
an adapter cable with XLR and BNC connectors can be provided
(AES/EBU/CLK Adapter Cable, ID 490171).
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. The pin assignment
of the 15-pin Sub-D socket is shown in TAB. 11.
TAB. 11
Socket: 15-pin Sub-D
Pin Signal
1 AES 1
2 AES 1
3 AES 2
4 AES 2
5 AES 1
6 AES 1
7 AES 2
8 AES 2
10 CLK
PIN ASSIGNMENT: ANALOGUE INPUT (AUDIO 1/2 IN)
Electrical characteristics
Incoming level:
Impedance:
Head room: 6 dB
PIN ASSIGNMENT: ANALOGUE OUTPUT (AUDIO 1/2 OUT)
Electrical characteristics
Outgoing level: adjustable -3 .... +9 dBu
Impedance:
Head room: 6 dB
PIN ASSIGNMENT: DIGITAL AUDIO INTERFACE AES/EBU 1-2
IN/P
IN/N
IN/P
IN/N
OUT/P
OUT/N
OUT/P
OUT/N
IN/OUT
I n t e r f a c e s
adjustable -3 .... +9 dBu
> 25 kΩ
50 Ω
P A G E 11 7