Axel Oxygen 3 Operations Instructions download pdf (Page 43)

Oxygen 7Oxygen 7 - TELCO MODULE

Pag. 43

9.3 INPUT / OUTPUT STAGE

The RECEIVE is via a standard female XLR-3 connector and it is set for

line sources. The input is electronically balanced.

The recessed GAIN trimmer allows you to adjust the gain in a large

range. In conjunction with the GAIN potentiometer (see) this allows you to

adjust the overall gain of Receive signal to any desired figure within the

available range. The trimmer is acting only with AMPLIFIER jumper closed

(see).

The SEND is via a standard male XLR-3 connector into which may be

plugged the input of an external telephone hybrid. It is a balanced output,

providing a mix-minus feed (i.e. the programme output signal minus the

phone signal).

The unbalanced INSERT socket is provided which is a break point in the

input (Receive) channel signal path. The insert point allows external piece

of equipment such as limiters, compressors and other signal processing

units to be added as required to particular input channels.

The Insert is a 3-pole ¼” ‘A’ gauge Jack Socket, which are normally by-

passed. When a jack plug is inserted, the signal path is broken at a point

just after the preamplifier stage. The signal from the channel appears on

the TIP of the plug and is returned on the RING to continue through to the

final output.

9.4 REMOTE CONNECTOR

The 9 pin D-Type plug remote connector provides the inputs and outputs

for the following functions:

• Remote control for line ‘hooking’ on the external telephone hybrid

• External control for RING LED (i.e. RING LED on the Telco

module can be driven by a suitable external command)

Ref to Section 9.1

9.5 REC OUT socket

The Rec Out is a 3-pole ¼” ‘A’ gauge Jack Socket, electronically balanced

(MONO). It provides Receive-only signal, Send-only signal or the Receive

mixed to the Send, depending on the module jumper configuration (see §

9.6).

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Axel Oxygen 3 Operations Instructions Page 43