Orban OPTIMOD 8400 - EAS TEST

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INTRODUCTION ORBAN Model 8400
If the talent relies principally on headphones to determine whether the station is on the
air, simple loss-of-carrier and loss-of-audio alarms should be added to the system. The
8400 can be interfaced to such alarms through any of its eight its GPI remote control in-
puts, cutting off the low-delay audio to the talent’s phones when an audio or carrier fail-
ure occurs.
The front panel headphone jack provides output matching the Analog Output, except that
it’s always de-emphasized (even if the Analog Output is set with pre-emphasis).
EAS Test
For stations participating in the Emergency Alert System (EAS) in the United States,
broadcast of EAS tones and data can be accomplished in three different ways:
1. Run EAS tones and data through the 8400.
Note: Normal 8400 processing may not allow the full modulation level as re-
quired by EAS standards. It is therefore necessary to temporarily defeat the
8400’s processing during the broadcast of EAS tones and data. Placing the
8400 in its
Bypass Test Mode can defeat the processing. The Bypass Gain
control allows a fixed gain trim through the 8400. See “Test Modes,” on page
3-59 for more information.
2. Place the 8400 in Bypas
s mode locally.
A) Locate to System Setup on the pop-up Menu display, then press Enter button.
B) Select Test Modes: Locate to Test Modes icon and press Enter button.
C) Locate to Bypass, then press Enter button.
D) Begin EAS broadcast.
After the EAS broadcast, resume normal processing:
E) Locate to Operate in the Test Modes screen, then press Enter button.
This will restore the processing preset in use prior to the Test Mode.
3. Place the 8400 in Bypass mode by remote control. Then program any
two Remote Interface inputs for “Bypass” and “Exit Test,” respectively.
A) Connect two outputs from your station remote control system to the Remote Inter-
face
connector on the rear panel of the 8400, according to the wiring diagram in
Section 2.
B) Locate to System Setup on the pop-up Menu display, then press Enter button.
C) Select Network Remote: Locate to Network Remote Modes icon and press Enter
button.