User manual

A·X·U·M User Manual Version 2.5 - 2011-01-28
AXUM from D&R - Phone: [phone] - E-Mail: [e-mail] - 81 -
11.2.4 Stereo line input and output
The line I/O jack patch panel houses female jack connecters, the line I/O XLR patch panel houses
XLR type connectors (male or female).
Female XLR
Male XLR
Name
Function
Pinning
2
+Audio
Audio in phase
3
-Audio
Audio out phase
1
Shield Ground
Table 11-3: Line I/O patch panel XLR wiring
11.3 Standard RJ45 wiring
Figure 49: RJ45 Connector
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Shield
RJ45 name 1A 1B 2A 3B 3A 2B 4A 4B S
Ball Left (Hot) Left (Cold) Right (Hot)
GPIO1 GPIO1
Right (Cold)
GPIO2
GPIO2 Shield
Phones Left 1 Right 1 Left 2 Right 2
Table 11-4: Standard RJ45 wiring
11.3.1 GPIO TTL/Relay selection
Each RJ45 connection on I/O cards handles audio signals and GPIOs.
The GPIO pins can be configured to work as:
• TTL in and out
this is selected by GPIO1 jumpers in the place 12 and GPIO2 jumpers in place 45. These
jumpers are located on the I/O cards, close to the RJ45 connectors.
Table 11-5: RJ45 pinning in GPIO-TLL mode
Pin
Con.
Pair
Pin name
Function
Comment
1
1A
1
+Audio 1
Left audio input or output in-phase
Imp. 2k Ohm
max. level +20dBu
2
1B
-Audio 1
Left audio input or output out-phase
3
2A
2
+Audio 2
Right audio input or output in-phase
Imp. 2k Ohm
max. level +20dBu
6
2B
-Audio 2
Right audio input or output out-phase
5
3A
3
GPIO1a
GP-Out
+5V TTL out, 560R
4 3B GPIO1b GP-In +5V TTL in, 10kR int. pull-up
7
4A
4
GPIO2a
GP-Out
+5V TTL out, 560R
8
4B
GPIO2b
GP-In.
+5V TTL in, 10kR int. pull-up
S GND S Shield GND
Audio ground and reference
for GP-In