Federal Signal Corporation Personnel Alerting System, Installation And Operation Instructions Manual

Page: 73 / 84

PRE-OPERATION CHECK-OUT AND TEST
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e. Ensure tone is not clipped by
viewing waveform with an
oscilloscope.
2. TX adjustment
a. Simultaneously press buttons 5 & 7
on the 2005141 controller card. This
will cause the controller to transmit
for approximately 8 seconds.
b. Determine proper siren TX level
required (typically 1V
p-p
or
approximately 0dB.)
c. The TX levels for all of the siren
controllers must be the same.
d. Verify the RX audio received at the
Base Station is not clipped or
distorted by viewing waveform with
an oscilloscope.
6.5 600 Ohm Adjustment Procedure
for External Audio Source
Note: To use the 600 ohm input for
external audio, at JP8 a jumper must
be across pins 1-2. JP8 is located
internally on the main controller card.
1. Audio source adjustment for external
audio source.
a. Transmit a tone from the external
audio source.
b. Ensure tone is not clipped or
distorted by viewing waveform with
an oscilloscope.
c. The nominal external audio source
level is 1V
p-p
.
d. Adjust the external audio source to
the appropriate level.
2. Audio source adjustment for UVIC
controller.
a. Transmit a tone from the external
audio source. Note that a contact
closure at JP15 pins 10 and 11
(PTT: Push To Talk) is required to
activate audio mode.
b. Adjust the level using the external
audio gain adjustment R111 (R111
located internally on the 2005141
controller card circuit card).
c. Set for same level as the standard
siren sounds.
d. Ensure that the sound is not
distorted.
6.6 Control and Status Monitoring
1. Use The Commander Digital System
(SFCDWARE) to verify the UVIC has
been properly configured for the
application. Make any required
changes.
2. The control and status monitoring
features should be tested from each
control point. Test each control
function and all status indications
using SFCDWARE. Verify each
status point provides the proper
indication of both pass and fail
conditions.
6.7 Optional UVLOC
After all connections have been made
and power is applied to the UVIC, verify
the green power LED on the control
panel is on. Turn the rotary selection
switch fully counter clockwise to the
LIVE P.A. position. Press the ARM
button for 1 second and verify the red
ARM LED turns on. Press and hold the
ACTIVATE button while speaking into
within 12” of the microphone. Verify the
P.A. audio is clear and at the desired