SA-400 Installation and Operating Instructions Page 5
CP4825A 9/6/01
MOUNTING
The mounting bracket supplied can be installed above or below the unit. Choose a
mounting location convenient to the operator and away from any air bag deployment
areas. Inspect behind mounting area for clearance. Assure adequate ventilation to
prevent overheating. Consider wire routing and access to connections, as well as
microphone bracket placement. Install mounting bracket to vehicle using 1/4" hard-
ware (not supplied).
If mounting in a rack or console, make sure that mounting bolts do not enter case
more than 1/4".
ELECTRICAL CONNECTIONS
Electrical connections to the unit are made
using the wiring harness supplied. If the
unit needs service the connector can be
easily removed without unwiring the har-
ness.
The power supply of the unit must be capa-
ble of delivering peak currents up to 50
amps for adequate short circuit protection
and reliable operation. The preferred
source is directly at the vehicle battery. A
fuse on the rear of the unit protects from
overload.
Disconnect vehicle battery before mak-
ing any electrical connections.
Extend leads using adequately sized wiring
and terminals or splices.
Wire Size and Termination - The diagram
shows the minimum wire size used for each
connection, along with recommended lead color. If the wire is longer than 10 ft. use
the next larger wire size. Use only high quality crimp connectors for installation on
the vehicle.
Negative Connection (Black) - Both leads must be used. Connect to the negative
battery connector or to chassis ground.
Positive Connection (Red) - Both leads must be used. Connect to the positive bat-
tery connector or to a high current power buss. A power relay may be used.
Speaker Connection (Brown) - Both leads must be used. Connect 1 lead to each
terminal or lead of the speaker. When used with 2 speakers connect each brown
lead to both speaker terminals or leads (parallel circuit). Observe polarity (phasing)
when connecting 2 speakers.
Radio Input Connection (Blue) - Connect 1 lead to each ter-
minal of the radio speaker or output connector. The input is
isolated and polarity is not important.
Auxiliary Input Connection (White) - The Auxiliary Input al-
lows activation by an external source of the Siren push button
function. The adjacent diagram shows a horn ring connection
example.
NOTE: Permanent disconnection of the vehicle horn is NOT
recommended.
HORN RING
CONNECTION
HORN
RING
SWITCH
AUX
Added
SPDT
Switch
HORN
WIRING HARNESS CONNECTIONS
(2) #18 AWG BRN
(#16 - 2 SPKR)
2 - SPKR - Connect for
same phase (+ to +)
#18 AWG WHT (See below)
(2) #18 AWG BLU
Connect to output
jack, terminals or
speaker of radio
#14 AWG RED
Use both leads
Extend with #12
#14 AWG BLK
Use both leads
Extend with #12
RADIO
+
BAT
-
AUX
CP2560
CABLE
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