D&R AXUM Manuel d'utilisateur télécharger pdf (Page 68)

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 - 68 -

10 Available I/O rack cards

Depending on your audio-connections, you can select the I/O cards.

The next paragraphs will give you a detailed overview on the currently available cards.

10.1 MIC input card

There are four balanced MIC inputs available on each card.

Each RJ45 connector represents a MIC input and two GPIO’s which can be connected to

the 19” patch panels with a shielded twisted pair (STP) cable.

On each MIC input you can individual activate the +48V phantom power and PAD.

For each GPIO you can choose, by way of a hardware jumper on the 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 10-1: MIC RJ45 connection

Con.

Pair

Pin name

Function

Comment

+Audio 1

MIC input in-phase

Imp. 2kΩ

max. level +20dBu

-Audio 1

MIC input out-phase

+Audio 2

not used

-Audio 2

not used

If jumper TTL-GPIO If jumper GPO

see chapter 11.3.1

GPIO1a

GP-Out

(TTL)

Photo MOS relay

(max 50V, 200mA)

GPIO1b

nGP-In

(TTL)

GPIO2a

GP-Out

(TTL)

Photo MOS relay

(max 50V, 200mA)

see chapter 11.3.1

GPIO2b

nGP-In

(TTL)

S GND S Shield GND

Audio ground and

reference for GP-In

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 120 121

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D&R AXUM Manuel d'utilisateur Page 68

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