Controlled Products Systems Group 1503-080 - Manual (Page 10)

Page 10
1.2 Wiring
The wiring of this device is an extremely important and integral part of the access control system. It is
very important that proper wire is used for power and control lines, and that the system is properly
grounded.
• The digital keypad can operate on 12-24 volt AC or DC power. If using DC power,
POLARITY MUST BE OBSERVED! Connect the NEGATIVE DC input power to terminal 1.
Connect the POSITIVE DC input power to terminal 2.
• The light (1503-081, 1503-082, 1504-081) is set to operate at 24 VAC power. Operating the
lighted versions of the keypad at less than 24 VAC will cause the light to be dim or to not light
at all. If the keypad is to be powered from a solar system (12 VDC), use the non-lighted
version (1503-080) or remove the light bulb.
• Do not run power wiring greater than 500 feet.
• Do not power electric strikes or magnetic locks from the power supply. Strikes, locks and
other devices must be powered from their own power source.
• It is preferable to keep power wiring as short as possible. A low voltage surge suppresser
(P/N 1878-010) is recommended.
• Be sure to properly ground the digital keypad. Attach a separate 12 AWG wire to terminal 3
(earth ground). Attach the other end of this wire to a good earth ground. This can be a
properly grounded metal conduit, a cold water pipe, or a grounding rod driven at least 10 feet
into the soil. A gooseneck post anchored or mounted on concrete does not make a good
ground.
• Avoid any splices in wiring. If a splice is made, it must be soldered and sealed in a watertight
junction box.
• Relay contacts are rated for 30 Volt, 1 Amp.
• A switch closure across terminals 4 and 5 will activate the relay for the programmed strike
time.
• Use U.L. listed wire with an insulation rating of 600 volts.
POWER WIRING
Wire Size Maximum Distance
22 AWG 100 Ft.
20 AWG 200 Ft.
18 AWG 250 Ft.
16 AWG 500 Ft.