Diablo Controls DSP-15, Руководство пользователя

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DSP-15 User Manual Page 16 of 23 DSP15_MAN_C
5. Installation
Detector Installation
Location: The detector should be installed in a weatherproof location that is near the loop. Ideally, a technician
should be able to see the loop and the detector at the same time.
Mounting: The detector will function when mounted in any orientation. It is best to mount the detector such
that the switches and indicators will be easily accessible for configuration and troubleshooting. If using a
detector harness, be sure to leave enough of the wiring harness to allow the technician to easily work with the
detector.
Wiring: The detector will come with a 10-pin terminal block or a 10-pin male Molex connector. Wire nuts can
be used for most connections to the wires in a detector wiring harness. However, wire nuts should never be
used at any point in the loop circuit itself. All loop connections should be crimped or screw terminals at a
minimum and soldered for best long-term reliability.
Wiring Diagram
Pin Description
1
Output A Relay Common
2
Output A (N.C.)
3
Output A (N.O.)
4
Output B Relay Common
5
Output B (N.O.)
6
No Connection
7
DC Power In
8
DC Power Common
9
Loop
10
Loop
Special attention should be paid to ensure that the loop wires remain tightly twisted together. An air gap
between the two wires for a loop may cause the detector to lock up if the wires are disturbed.
Loop Installation
The reliability and overall performance of the detector are greatly dependent on the loop itself. Several factors
go into a good loop installation: type of wire used, loop configuration, and installation practices.
Type of Wire Used: The wire used for wiring the loop should have a jacket of cross-linked polyethylene. This
would be a wire with an XLP jacket such as XHHW. THHN or similar wire types should never be used for loop
wire.
The gauge of the wire to use depends on two factors: Distance in cable feet from the loop to the detector and
stresses the wire may see. The gauge of the wire can be 20 AWG as long as the detector is within 50 feet of the
loop in cable distance. For 50 to 100 feet, use at least 18 AWG wire. At greater than 100 feet, use a 16 AWG