117
Level Setting Procedures
Level Setting Procedures
You may be able to install all of your units with the default settings they arrived with from
the factory, and the system may perform very satisfactorily. However, it is likely that at
least one or two stations will need to have their levels adjusted to provide optimum output.
This section of the manual deals with adjusting the audio levels in individual Station
Transponder Units and at the VoIP Server (if the VoIP option is used to distribute voice
traffic through the system).
If your system uses a radio-based infrastructure to distribute voice audio through the
system, there is a separate set of instructions to cover adjusting levels in the Station
Transponder Unit to match the radio to which it is interfaced.
It is recommended that you read through this section at least once prior to actually trying
to make adjustments. The procedures are not that difficult; however, the whole process
will go more smoothly if you know what to expect and have arranged to have everything
you need on hand before you start.
Equipment & Prerequisites
• A small, flat-bladed screwdriver suitable for adjusting the potentiometers on the
transponder board of the Station Transponder Unit
• An oscilloscope, actually you may want two of them, one at the server location and
one at the Station Transponder Unit location
• For setting levels in a radio-based system, a service monitor is required to check
channel deviation levels
• A land line, cell phone, or radio link so instructions can be passed between the
dispatch center equipment room and the station at which the Model 6203 is located
• The necessary hardware to create adapters that will enable you to make oscilloscope
readings at the
Mic In
(pink) and
Speaker Out
(green,
Line Out
on some cards)
jacks on the sound card of the VoIP server computer
Note
While the Station Transponder Unit will provide clear audio at its
location, it was never intended to provide a high level audio output.
It is assumed that the signal from the Station Transponder Unit will
be sent to a PA amplifier and that the PA amplifier will drive the
speakers in the fire station.
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Страница 1: ...Fire Station Alerting System Installation and Maintenance 025 9581M ...
Страница 6: ...6 025 9581M ...
Страница 40: ...Creating Console Positions 40 025 9581M ...
Страница 45: ...45 Installing the VoIP Gateway Server ...
Страница 78: ...Configuring Station Transponder Units 78 025 9581M ...
Страница 124: ...Installing the Station Transponder Units on Site 124 025 9581M ...
Страница 146: ...Using a Model 26 Fire Station Dispatcher for System Backup 146 025 9581M ...
Страница 188: ...Appendix C Using a Model 620x in a Model 26 based System 188 025 9581M ...
Страница 196: ...Fire Station Alerting System Installation and Maintenance 196 025 9581M ...