Crm Output Card - D&R AXUM User Manual

A·X·U·M User Manual

10.5 CRM output card

There are four stereo outputs available on this card. RJ45 connector A&B represents the
CRM stereo line output. RJ45 connector C&D represents the stereo phones outputs.
Each RJ45 connector has also two GPIO's which can be connected to the 19" patch
panels with a shielded twisted pair (STP) cable.
This stereo output card has some special functions:
- Analog level and mute functionality.
- Headphone amplifiers.
RJ45 A is stereo balanced output 1
RJ45 B is stereo balanced output 2
RJ45 C is stereo headphone output 3&4
RJ45 D is stereo headphone output 3&4
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.
Pin Con. Pair
1 1A
2 1B
3 2A
6 2B
5 3A
4 3B
7 4A
8 4B
S GND S
Table 10-5: CRM output RJ45 connection (A&B)
Pin Con. Pair
1 1A
2 1B
3 2A
6 2B
5 3A
4 3B
7 4A
8 4B
S GND S
Table 10-6: Phones RJ45 connection (C&D)
AXUM from D&R - Phone: +31 294 418014 - E-Mail:
Version 2.5 - 2011-01-28
Pin name Function
+Audio 1 Left line output in-phase
1
-Audio 1 Left line output out-phase
+Audio 2 Right line output in-phase
2
-Audio 2 Right line output out-phase
If jumper TTL-GPIO If jumper GPO
GPIO1a GP-Out
3
GPIO1b nGP-In
GPIO2a GP-Out
4
GPIO2b nGP-In
Shield GND
Pin name Function
+Audio 1 Left phones 1 output
1
-Audio 1 Right phones 1 output
+Audio 2 Left phones 2 output
2
-Audio 2 Right phones 2 output
If jumper TTL-GPIO If jumper GPO
GPIO1a GP-Out
3
GPIO1b nGP-In
GPIO2a GP-Out
4
GPIO2b nGP-In
Shield GND
(TTL) Photo MOS relay
(max 50V, 200mA)
(TTL)
(TTL) Photo MOS relay
(max 50V, 200mA)
(TTL)
(TTL) Photo MOS relay
(max 50V, 200mA)
(TTL)
(TTL) Photo MOS relay
(max 50V, 200mA)
(TTL)
info@d-r.nl
Comment
Imp. 56Ω
max. level +26dBu
Imp. 56Ω
max. level +26dBu
see chapter 11.3.1
see chapter 11.3.1
Audio ground and
reference for GP-In
Comment
Imp. 5Ω
minimal phones imp.
32Ω
Imp. 5Ω
minimal phones imp.
32Ω
see chapter 11.3.1
see chapter 11.3.1
Audio ground and
reference for GP-In
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