A·X·U·M User Manual Version 2.5 - 2011-01-28
AXUM from D&R - Phone: +31 294 418014 - E-Mail: info@d-r.nl - 71 -
10.4 Line output card
There are four balanced stereo line outputs available on each card.
Each RJ45 connector represents a stereo line output and two GPIO’s which can be
connected to the 19” patch panels with a shielded twisted pair (STP) cable.
For each GPIO you can choose, by way of a hardware jumper on de board, between TTL
Input/output or Photo-MOS relay output see chapter 11.3.1 GPIO TTL/Relay selection. For
software configuration see chapter 9.3 GPIO.
Table 10-4: Line output RJ45 connection
1
Left line output in-phase
Imp. 56Ω
max. level +26dBu
Left line output out-phase
2
Right line output in-phase
Imp. 56Ω
max. level +26dBu
Right line output out-phase
If jumper TTL-GPIO If jumper GPO
see chapter 11.3.1
3
Photo MOS relay
(max 50V, 200mA)
4
Photo MOS relay
(max 50V, 200mA)
see chapter 11.3.1
S GND S Shield GND
Audio ground and
reference for GP-In
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