1.8 Wiring for Multiple Units – Telephone Mode DOORKING
1875-010
GND
ENTRY BY-PASS
12345678
C.O. PH IN PH OUT HOME
DOORKING, INC., INGLEWOOD, CA 90301
Date: Dwg. No. Rev.
Title:
6/09 B
M1812P-002
1812 Plus –multiple systems.
Basic wire connections.
2
1
7
3
16.5 VAC
20 VA
Mag Lock
Power
Mag Lock
Power 16.5 VAC
20 VA
7
7
6
4
6
5
2
See drawing M1812P-001 for note references.
Up to five (5) 1812 units may be wired in series using this method: PHONE OUT to PHONE IN; PHONE
OUT to PHONE IN, etc.
Each 1812 must be programmed for MULTIPLE SYSTEMS, each must have a unique ATTENTION
NUMBER and each must have a unique MASTER CODE.
The 1812 that is connected directly to the house phones must have its “Number of Rings” programming
(see 2.2.8) set for 1 less than the other 1812 units in the system.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Mic
Vol
Master
Code
1234567891011
Speaker
Vol
Keypad
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Mic
Vol
Master
Code
1234567891011
Speaker
Vol
Keypad
Ring
Tip
Ring
Tip
Gnd
Gnd
By-Pass
Switch
A
7
3
B
C
Blue/White (-)
White/Blue (+)
House Phones
Phone
Jack Phone
Jack Phone
Jack
From Phone
Company Blue/White
Orange/White
White/Orange
White/Blue
Blue/White
White/Blue
Vehicular Gate
Operator
Pedestrian
Gate / Door
Vehicular Gate
Operator
Pedestrian
Gate / Door
2nd 1812
1st 1812
White/Blue (+)
Blue/White (-)
1812-161-E-1-10 Page 17