1 main terminal description – DoorKing 1802 User Manual
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Do not run high voltage (115 V) power lines and communication lines in the same conduit. These
should be in separate conduits at least six (6) inches apart. Be sure that all phone line wiring is
twisted and completely isolated from ground.
Use only the supplied 16.5 VAC (or U.L. listed equivalent) to power the entry system. Do not power
any other devices (electric strikes, magnetic locks, lights, etc.) from this transformer. Do not
run 16 VAC entry system power lines over 200 feet. It is advisable to keep these wires as short as
possible. Use 18 AWG wire for wire runs up to 100 feet, and 16 AWG wire for wire runs up to
200 feet. Install a low voltage surge suppresser (DoorKing p/n 1878-010 or equivalent) to help
protect the entry system from power surges.
Relay 1 contacts are located on the main terminal strip (10, 11, 12). Relay 2 contacts are located on
an auxiliary terminal strip above terminals 9 and 10 and are labeled on the board left to right: NO, NC,
C.
A 12 volt .8 amp hour gel-cell battery (DoorKing p/n 1801-008) can be installed in the system to
provide stand-by power in the event of a power outage. Connect the positive (RED) lead to terminal
9; connect the negative (BLACK) lead to terminal 8.
2.1 MAIN TERMINAL DESCRIPTION
TERMINAL DESCRIPTION
1
Phone Line Connection – 800 ft. maximum with 24 AWG wire; 1600 ft. maximum with 22 AWG wire.
2
Phone Line Connection – 800 ft. maximum with 24 AWG wire; 1600 ft. maximum with 22 AWG wire.
3
Earth Ground Only – Not a Low Voltage Common!
4
Switch Input 1. A closure between terminals 4 and 8 will cause relay 1 to activate for the programmed
strike time. The Postal Switch is connected here.
5 Microphone
Input
– White Wire.
6 Microphone
Input
– Green Wire.
7 Speaker
Output.
8
Common for switch input 1, speaker and battery NEGATIVE (12 VDC).
9 Microphone
Input
– Red Wire and battery POSITIVE (12 VDC).
10
Relay 1 Common.
11
Relay 1 Normally Closed (N.C.).
12
Relay 1 Normally Open (N.O.).
13
16 VAC Input Power – 20 VA minimum.
100 ft. maximum with 18 AWG wire; 200 ft. maximum with 16 AWG wire.
14
16 VAC Input Power – 20 VA minimum.
100 ft. maximum with 18 AWG wire; 200 ft. maximum with 16 AWG wire.