e-mail:
voice:
360.854.9559
fax:
866.783.1742
6
Audio Sentinel
®
»Web Installation and Operation Manual
INSTALLATION
Audio Output Connections
Note:
The switching function of the Audio Sentinel® is not required for proper
operation. Connect the load to the terminals labeled “LT–/+ CM and RT–/+ CM.
For unbalanced loads, use the “+” and GND terminals only. Shields should be tied
to the “GND” terminals.
Manual Operation and Indicators
The Audio Sentinel® may be operated from most web browsers, front panel and/or
remote control connections. The front panel is equipped with two LED’s (Valid
Audio x) to indicate when valid stereo or dual-monaural audio is detected for each
channel.
Two additional LED’s (channel x) indicate what channel is active (x indicates either
channel one or two).
The “EXT/Select” push button is in parallel with the rear panel terminal. The front
panel LED indicates when activated.
This function is user configurable for either sustained or toggle mode operation.
Note: Sustained mode operates in either manual or automatic mode.
Sustained mode is normally used with STL systems with the input tied to the
receivers squelch relay. When the receiver fails, the squelch relay closes and forces
the Audio Sentinel to switch to channel two. When the relay opens, the unit returns
to channel one.
When the toggle mode is selected, each time this input is pulled to ground, the unit
toggles between channels one and two.
NOTE: The unit MUST be in MANUAL mode.
Factory defaults may be restored by depressing the recessed front panel “default”
push button for five seconds while powering up the unit. The PWR/HB led will rap-
idly blink two to three times when loaded.
The slow blinking “PWR/Heartbeat” LED indicates valid power and proper operation.
