D&R AXUM User Manual download pdf (Page 82)

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 - 82 -

• 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.

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

Con.

Pair

Pin name

Function

Comment

+Audio 1

Left audio input or output in-phase

specifications

depends on I/O card

-Audio 1

Left audio input or output out-phase

+Audio 2

Right audio input or output in-phase

specifications

depends on I/O card

-Audio 2

Right audio input or output out-phase

GPIO1a

Relay, connecting a&b

Photo MOS relay

Bidirectional Max.

50V, 200mA

4 3B GPIO1b

GPIO2a

Relay, connecting a&b

Photo MOS relay

Bidirectional Max.

50V, 200mA

8 4B GPIO2b

S GND S Shield GND

Audio ground and

reference for GP-In

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 120 121

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