User guide
1812-162-S-11-12
25
EARTH
GND
SW1
ENTRY BY-PASS
1875-010
1
CENTRAL
OFFICE
PHONE
IN
PHONE
OUT
HOME
2345678
TIP
TIP
TIP
RING
RING
RING
TIP
RING
The 1812 Access Plus has a built-in modem that can be used to connect to a PC. Before programming can be attempted, you
need to install the 1812 programming software on the computer you want to use for this purpose. The computer must have an
internal phone modem installed in it OR an external phone modem connected to it. Follow the instructions in the 1812
programming software help guide for setup information.
1.12.3 Phone Modem Connections
Phone Cable
Phone Cable
Phone Modem
Phone Modem Connection: 1812 and PC connected on the SAME phone line.
Phone Modem Connection: 1812 and PC connected on DIFFERENT phone lines.
SOFTWARE
INSTALLED
RJ-11
External
phone modem
connection to
the PC shown.
Internal
phone modem
connection to
the PC shown.
To Phone Company Telephone Lines
To Phone Company Telephone Lines.
Homeowner’s Phones
7
7
8
8
9
9
4
4
5
5
6
6
1 2 3
0
0
1
1
1
1
2
2
2
2
3
3
3
3
3
3
RJ-11
Phone Jack
RJ-11
Phone Jack
RJ-11
Phone Jack
1812 must be wired for
Telephone Mode.
T
elephone
Company
RJ-11
To Phone Company
Telephone Lines.
SOFTW
ARE
IN
STAL
L
ED
Interna
l Modem
Installed in CP
U
Ground
12 AWG Min.
EARTH
GND
SW1
ENTRY BY-PASS
1875-010
1
CENTRAL
OFFICE
PHONE
IN
PHONE
OUT
HOME
2345678
TIP
TIP
TIP
RING
RING
RING
TIP
RING
Homeowner’s Phones
7
7
8
8
9
9
4
4
5
5
6
6
1 2 3
0
0
1
1
1
1
2
2
2
2
3
3
3
3
3
3
RJ-11
Phone Jack
RJ-11
Phone Jack
RJ-11
Phone Jack
1812 must be wired for
Telephone Mode.
Telephone
Company
Ground
12 AWG Min.