Specifications Axum Digital Audio System; Input/Output Cards - D&R AXUM User Manual

A·X·U·M User Manual
•
Relay out (no input available).
this is selected by GPIO1 jumpers in the place 23 and GPIO2 jumpers in place 56. These
jumpers are located on the I/O cards, close to the RJ45 connectors.
Pin Con. Pair Pin name
1 1A
1
2 1B
3 2A
2
6 2B
5 3A
3
4 3B
7 4A
4
8 4B
S GND S
Table 11-6: RJ45 pinning in GPO-Relay mode
The figure shows how the jumper selection on the I/O card looks:
Figure 50: GPIO TTL/Relay jumper selection

12 Specifications AXUM digital audio system

12.1 Input/output cards

Mic inputs : Electronically balanced
: Input impedance 2k Ohm
: Input sensitivity -70dBu up to +20dBu (PAD)
: CMRR MIC inputs: 85dB @ 1kHz, maximum gain
: Phantom is switchable +48 Volts
: Optional is transformer balancing
AXUM from D&R - Phone: +31 294 418014 - E-Mail:
Version 2.5 - 2011-01-28
Function
+Audio 1 Left audio input or output in-phase
-Audio 1 Left audio input or output out-phase
+Audio 2 Right audio input or output in-phase
-Audio 2 Right audio input or output out-phase
GPIO1a
Relay, connecting a&b
GPIO1b
GPIO2a
Relay, connecting a&b
GPIO2b
Shield GND
Comment
specifications
depends on I/O card
specifications
depends on I/O card
Photo MOS relay
Bidirectional Max.
50V, 200mA
Photo MOS relay
Bidirectional Max.
50V, 200mA
Audio ground and
reference for GP-In
info@d-r.nl - 82 -