Outreach Plates

SigNET's Outreach Plate audio input extension system comprises a range of wall, ceiling and desk mountable single gang audio input plates specifically designed to increase the audio input capability of an induction loop system. Covering the most common variants of audio connector, they work by mixing the signals from various audio input sources into one balanced line level input which can be fed into the line input of a compatible amplifier.

Mountable on 25mm back boxes, each plate features a built-in mixer, pre-amp, input level control and balanced output. The fact they can be installed at the most convenient point on an installation overcomes the need for long and potentially hazardous microphone/audio leads.

Typically, up to 10 Outreach plates (any mix) can be daisy-chained to one balanced line level input with cable lengths of up to 100m easily achievable using standard two-pair audio cable with no recognisable degradation of audio signal quality.

Each outreach plate requires four wires, two balanced line (A +, A –), one ground (0V) and one power connection (12-32 V DC regulated). Click on the thumbnails below left for typical wiring schematics.

Category:

Outreach ‘Input’ Variants

APM OMNI-DIRECTIONAL PLATED MICROPHONE
A self-contained omni-directional electret microphone complete with onboard mic to line level converter. Typical coverage up to 25m2 (ambient) or 2.5m (direct speech) when located at a ceiling height of 2.5-3m.

 

APL DUAL PHONO LINE LEVEL PLATE

Accepts stereo phono line-level signals (usually from a stereo source such as a TV). Includes an on-board stereo phono to mono converter. (An APS SCART to dual phono lead is also available).

 

APJ 3.5mm MICROPHONE JACK PLATE

Accepts unbalanced electret microphones with 3.5mm mono jack plugs. Includes an onboard mic to line level converter, high gain pre-amplifier and 8V phantom power.

 

APQM 6.35mm (1/4″) MICROPHONE JACK PLATE

Accepts balanced or unbalanced electret microphones with 6.35mm (1/4″) jack plugs. Includes an on-board mic to line level converter, high gain pre-amplifier and 8V phantom power.

 

APQL 6.35mm (1/4″) LINE LEVEL PLATE

Accepts 6.35mm (1/4″) jack feeds from audio equipment such as stage or church mixing desks, etc.

 

APXM XLR 3 PIN MICROPHONE PLATE

Accepts balanced or unbalanced microphones with standard 3 pin XLR connectors. Includes an on-board mic to line level converter, high gain pre-amplifier and 8V phantom power.

 

APXL XLR 3 PIN LINE LEVEL PLATE

Accepts standard 3 pin XLR feeds from audio equipment such as stage or church mixing desks, etc.

 

APXM/M DUAL INPUT MICROPHONE & DUAL PHONO MIXER PLATE

Accepts balanced or unbalanced microphones with standard three-pin XLR connectors AND stereo phono line-level signals via its dual phono line level input.

Outreach ‘Output’ Variants

APXO XLR 3 PIN BALANCED LINE OUTPUT PLATE

Provides an adjustable balanced line output (+12B max.) on a standard 3 pin male XLR connector. Typically used to connect an Outreach chain to third-party audio equipment such as conventional amplifiers.

 

API 'AFILS ACTIVE' PLATE 

Includes two ultra-bright LEDs in a translucent diffuser overprinted with the AFILS 'ear' symbol. The LEDs illuminate when the Outreach network is powered to indicate that an AFILS system is installed.

Specs

POWER REQUIREMENTS
Supply volts: 12 to 37V regulated d.c.
Supply current: 6 to 11mA

COMMON CHARACTERISTICS BETWEEN BALANCED LINE IN & BALANCED LINE OUT
Input – balanced/unbalanced line: 0.775Vrms (0dBu)
Input impedance: >10KΩ
Output – balanced line: 0.775Vrms (0dBu) + 6dB (overload)
Output impedance: <100Ω
Frequency response: 90Hz to 20kHz
Insertion loss/gain: <±0.05dB Insertion signal to noise ratio: >79dB THD + noise: <0.07%

APJ / APQM / APXM – ADJUSTABLE INPUT SPECIFICATIONS
Input signal level: -40dBu to -30dBu
Input gain control: ∞to 0dB
Input impedance: 500Ω
Phantom volts: 11V/0V (link selectable)
Signal to noise ratio: >60dB
THD + noise: <0.07% APL / APXL / APQL – ADJUSTABLE INPUT SPECIFICATIONS Input signal level: -10dBu to +6dBu Input gain control: ∞to 10dB Input impedance: >1KΩ
Phantom volts: n/a
Signal to noise ratio: >71dB
THD + noise: <0.03% APM – ADJUSTABLE INPUT SPECIFICATIONS Input signal level: n/a Input gain control: ∞to 0dB Input impedance: n/a Phantom volts: n/a Signal to noise ratio: >60dB
THD + noise: <0.07% APXO OUTPUT PLATE SPECIFICATIONS Max. Output signal level XLR: +12dBu balanced Signal to noise ratio: >95dB
Output level control XLR: ∞to +12dB
THD + noise: <0.01%
Output signal level line: 0dBu balanced fixed

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