Telos NX12 User Manual download pdf (Page 26)

16 | Section 2

AES Input XLR

PIN DESCRIPTION

1 Ground

2 Signal +

3 Signal -

So that all four hybrids are accessible in spite of the limited rear panel space for connectors, we

use one AES input for two hybrids. e relationship is as follows:

AES 1 Left is to Hybrid A

♦

AES 1 Right is to Hybrid B ♦

AES 2 Left is to Hybrid C ♦

AES 2 Right is to Hybrid D ♦

Most mixing consoles with AES outputs are able to deliver the required split. If not, you might

need an external AES router or combiner to provide this input. An alternative could be to use

an Nx12 conﬁguration requiring only a single mix-minus (see Mix Minus Modes in Section

5.4). e role of each hybrid depends upon the conﬁgured Show Mode, which is described in

Section 5.7.

POH (Program on Hold) Inputs

is analog input is for whatever audio you want callers to hear when put on hold, usually your

main program feed. is is an XLR female. is signal is processed by an AGC within the

Nx12.

Output (Caller)

Analog Outputs

e analog audio outputs have the following characteristics:

Active diﬀerential

♦

Output level: -10 to +8 dBu, nominal ♦

Clip point: +24dBu ♦

Impedance: < 60 Ohms x 2 ♦

Analog Output XLR

PIN DESCRIPTION

1 Ground

2 Audio +

3 Audio -

When feeding unbalanced devices, use pin 2 for the signal and pin 3 for the ground. Do not tie

pin 3 to pin 1. (Note that this is diﬀerent from most devices with active balanced outputs. e

Nx12 has a sophisticated output stage that emulates a transformer source.)

AES Digital Outputs

e AES outputs are only present if the AES option was ordered. Characteristics are:

AES3 compliant

♦

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Telos NX12 User Manual Page 26