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2.2 Wiring Detail – Large Main Cabinet
1820 Telephone Intercom System
Wiring Detail - Large Control Cabinet
13
12
Lobby Panel
1 2
3
4
5
1820-065-B-2-06
12
13
7
11 12
13
6
Doorman Telephone
4
6
16 Volt, 50 VA UL Listed Transformer.
1
Earth Ground.
2
Optional Central Office phone line - touch tone, loop start.
3
Doorman / Concierge Telephone (Optional).
4
Lobby panel. Connect additional lobby panels in parallel. Refer to lobby panel installation manual for
5
additional wiring requirements.
Use twisted pair wires for phone connections. 24 AWG up to 800 feet; 22 AWG up to 1600 feet.
6
Decoder board terminals. Used with 1816 systems only.
7
INCOMING
C.O. PHN
9
8
11
RJ71C phone block. See drawing M1816-065-6 for detail.
8
Incoming phone lines from Central Office.
9
Outgoing phone lines to individual apartments.
10
DoorKing connecting cable.
11
RS-485 connecting cable.
12
To additional Line Interface Boards
13
14
15
16
17
18
19
20
21
22
23 24
2
16 VAC
C.O.
PWR
INPUT
PHN
1
3
Title:
Date:
Resident
LINES
Telephone
10
DOORKING, INC., INGLEWOOD, CA 90301
1820 Telephone Intercom System
Wiring Detail
4/05
Dwg. No.
M1820-065-6
Rev.
Page 21
A
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