Me R189, User Manual

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3.4. Audio Wiring
Audio wiring on the One-Net has some flexibility due to the option of adding a
second sound card and because of built-in software control. Here are a few rules:
•
EAS decoder input always uses the audio line inputs.
•
Every line input can be used for decoding audio provided from an external
receiver or EAS decoder.
•
Every line input supports two (2) EAS decoders. The left side of the input is
decoded separately from the right side. So two line inputs provide four (4) EAS
decoders.
•
EAS alerts are selectively played out of the analog line output ports. Software is
used to select which ports are used for alert origination and forwarding.
•
The main microphone input is used to record EAS audio messages.
For decoding, each side of the stereo input of any audio input can be selectively used
as a single decoder source. In other words, one stereo input supports two EAS
decoders. A dual RCA to 3.5 mm jack input adapter can be used to connect two
separate mono input signals to a One-Net line input jack.
For alert encoding an audio cable is run from a software selected 3.5 mm line output
jack into your systems alert audio wiring. Only analog audio output is supported.
NOTE: The SPDIF digital audio output port is not used.
3.5. Video Wiring
The video output provides an NTSC analog composite video signal through the
yellow RCA jack. This will provide a details page during alert forwarding and/or alert
origination.
3.6. GPIO Output relays
The One-Net provides two General Purpose Output relays and two General Purpose
inputs. During an alert origination or forwarding, the GPO relay 1 is closed for the
duration of the alert audio portion of the alert, and GPO relay 2 can be programmed
to close during the audio or video portion of the alert.