Cable Lenght Chart Self Amplified Paging Products Catalog 201 Systems' Length

Self-Amplified Systems%27 Cable Length Chart The Eye | File Listing

User Manual: Self-Amplified Systems' Cable Length Chart

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Speaker Selection
Cable Length
HIGH
NOISE
Speech Is
Difficult To Hear
75-85
dB
MEDIUM
NOISE
Must Raise Voice
To Be Heard
65-75
dB
LOW
NOISE
Speech Is Easy
To Hear
55-65
dB
TYPICAL
TYPICAL
AMBIENT
AMBIENT
NOISE
NOISE
LEVEL
LEVEL
TYPICAL
TYPICAL
ENVIRONMENTS
ENVIRONMENTS
• Assembly Line
• Crowded Transit
Waiting Area
• Machine/Print Shop
• Shipping Warehouse
• Supermarket (Peak)
• Very Noisy Bar
or Restaurant
• Bank/Public Area
• Transit Waiting Area
• Department Store
• Noisy Office Setting
• Supermarket (Normal)
• Bar or Restaurant
• Conversational Speech
• Doctor's Office
• Hospital
• Hotel Lobby
• Quiet Office
•
Quiet Bar or Restaurant
SPEAKER MODELS
ACD2X2
ASWB1
ASWG1DK
ASWG1
AH5A
SAH5
AH15A
SAH15
This chart indicates the
typical Ambient Noise
Level and environments
appropriate for various
speaker types.
•Find the row which is equal
to or greater than the total
number of Current Units
needed for the equipment
on the cable run.
•Find where this row crosses
the column for the wire
gauge that will be used for
the run.
• The number in the cell where
these cross is the maximum
cable length for that run.
Example: When 37 Current Units
are to be used on a 24-Gauge Wire,
the maximum usable cable length
will be 88 feet.
Note: It may be necessary to
increase the wire size (smaller
gauge numbers) or split the
speaker runs to shorten the
wire run lengths if they exceed
the chart maximums.
Connecting wire pairs together, in
parallel in a cable, effectively reduces
the gauge and lowers resistance.
The
chart below shows how the
gauge
decreases with paralleled pairs.
Charts
Indicates maximum cable length (in feet)

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