Code 3 V-Con Siren - Manual (Page 5)

5
Terminal Block Connections
8 Position Terminal Block- ( see wiring diagram page 16 )
S1 - +12VDC, connect to a positive +12 volt DC source. It is recommended that the user protect this wire with a 20 Amp
fuse or circuit breaker located at the source. Use #14 gauge wire.
S2 - GROUND, connect to the negative terminal of the battery. This supplies ground (earth) to the siren. Use #14 gauge
wire.
S3 - Speaker Common, connect to one of the wires from speaker.
S4 - 58W Speaker, connect to the remaining speaker lead for 58W speaker only.
S5 - 100/200W Speaker, connect to the remaining speaker lead for 100/200W operation (1-100W, 11 ohm speaker or
2-100W, 11 ohm speakers connected in parallel).
S6 – Remote input (Horn Ring or foot switch) is factory set as a Tri-State input (accepts a positive (+12V) signal
or a ground (earth) signal). It can be reconfigured to accept a positive only signal or a ground only signal. See
SET-UP AND ADJUSTMENT section for details.
S7 - RRB, connect to one side of the two-way radio speaker.
S8 - RRB, connect to the second side of the two-way radio speaker.
Larger wires and tight connections will provide longer service life for components. For high current wires it is highly
recommended that terminal blocks or soldered connections be used with shrink tubing to protect the connections.
Do not use insulation displacement connectors (e.g. 3M ® ) Scotchlock type connectors). Route wiring using grom-
mets and sealant when passing through compartment walls. Minimize the number of splices to reduce voltage
drop. High ambient temperatures (e.g. underhood) will significantly reduce the current carrying capacity of wires,
fuses, and circuit breakers. Use "SXL" type wire in engine compartment. All wiring should conform to the minimum
wire size and otherrecommendations of the manufacturer and be protected from moving parts and hot surfaces.
Looms, grommets, cable ties, and similiar installation hardware should be used to anchor and protect all wiring.
Fuses or circuit breakers should be located as close to the power takeoff points as possible and properly sized to
protect the wiring and devices. Particular attention should be paid to the location and method of making electrical
connections and splices to protect these points from corrosion and loss of conductivity. Ground (Earth)termina-
tions should only be made to substantial chassis components, preferably directly to the vehicle battery.
The user should install a circuit breaker sized to approximately 125% of the maximum Amp capacity in the supply
line to protect against short circuits. For example, a 30 Amp circuit breaker should carry a maximum of 24 Amps.
DO NOT USE 1/4" DIAMETER GLASS FUSES AS THEY ARE NOT SUITABLE FOR CONTINUOUS DUTY
IN SIZES ABOVE 15 AMPS. Circuit breakers are very sensitive to high temperatures and will "false trip" when
mounted in hot environments or operated close to their capacity.