DoorKing 1812 Manuel du propriétaire télécharger pdf (Page 17)

1.5 TELEPHONE LINE WIRING – SINGLE UNIT

If any alarm systems are installed on the phone line, be sure that the alarm interface precedes the

1812 by-pass switch interface.

DOORKING

1875-010

GND

C.O.

1 2

PH IN

3 4

PH OUT

5 6

HOME

7 8

ENTRY BY-PASS

Ground

C.O.

Demarcation

Home

Telephones

Phone In - 1

Phone In - 2

Case Ground - 3

Phone Out - 4

Phone Out - 5

1812 #1

Main

Terminal

Use only twisted pair telephone wire that is

rated for direct underground burial. Do not use

wire designed for indoor applications.

Phone In - 1

Phone In - 2

Case Ground - 3

Phone Out - 4

Phone Out - 5

.022pf

DSL Filters

1. Connect PHONE IN wires from the BY-PASS switch to 1812 main terminals 1 and 2.

2. Connect PHONE OUT wires from the BY-PASS switch to 1812 main terminals 4 and 5.

3. Connect a ground wire to terminal 3.

4. Check for polarity on the phone "IN" wires, terminals 1 and 2. Terminal 2 must be positive

with respect to terminal 1. Set a VOM meter to measure DC volts. Place the positive lead

on terminal 2 and the negative lead on terminal 1. If the meter shows a positive voltage -

OK. If the meter shows a negative voltage (needle moves off scale to the left), reverse

the wires on terminals 1 and 2.

5. Surge protection is recommended on both the phone in and phone out lines. Use

DoorKing phone line surge suppressers (p/n 1877-010) or equivalent.

DSL Filters: The 1812 has been tested with several different types of DSL services. In most of these

applications, the DSL service did not interfere with the performance or operation of the 1812 system.

However, there may be an affect with some DSL services. With reference to this, the following

modification should correct any problems. Capacitors are DoorKing Part Number 3501-037.

1. Install a .022 uf capacitor across terminals 1 and 5.

2. Install a .022 uf capacitor across terminals 2 and 4.

3. Be sure that the capacitor leads do not short to each other or to the case. We

recommend that these leads be insulated.

1812-065-M-3-07 Page 17

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DoorKing 1812 Manuel du propriétaire Page 17

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