Dial-Up Phone Modem Connection - Voice/Data Transfer; Direct Connection To Pc Options - Data Transfer Only; Rs-232 Direct Connection - Data Transfer Only - DoorKing 1835 Owner's Manual

2.4.3b Dial-Up Phone Modem Connection - Voice/Data Transfer
Use your EXISTING phone modem to connect your PC to the entry system.
Note: Telephone companies will NOT support this phone line
connection to a telephone entry system after 2020.
SP SP ABC ABC DEF DEF
1 1 2 2 3 3
GHI GHI JKL JKL MNO MNO
4 4 5 5 6 6
PQRS PQRS TUV TUV WXYZ WXYZ
7 7 8 8 9 9
OPER OPER
0 0
A
Z
CALL
Note: In some cases, digital phone service (VoIP for example) may negatively affect modem service.

2.5 Direct Connection to PC Options - Data Transfer ONLY

2.5.1 RS-232 Direct Connection to PC - Data Transfer ONLY
Requires DoorKing RS-232 9-pin cable P/N 1818-040 and RS-232 to USB Adapter P/N 1815-037 to connect to a PC.
RS-232 to USB
Adapter
P/N 1815-037
1835-065-D-5-17
Note: You are
responsible for the
telephone line
charges connected
to the entry system.
Phone Line
Voice/Data
Phone Company
RS-232 Data ONLY
DB-9 Pin Plug
P/N 1818-040
100 ft Max.
DB-9 Pin #s
1 2 3 4
6 7 8 9
5 4 3 2 1
9 8 7 6
Your PC
Separate voice communication connection is needed.
DoorKing does NOT guarantee modem connections.
SLOW Data Transfer Rate
Your External
Phone Modem
Internal PC
Phone Modem
RS-232
Wire
Terminal
Color
Red
Red
Black
Black
White
White
Brown
Brown
Green/
Green
Shield
Shield
The 6-pin terminal can be
5
removed for easy wiring.
Male End
Female End
Your PC
or
RS-232 Terminal Description
Board Board
Pins Function
1 Transmit Data
2 Receive Data
3 Request to Send
4 Clear to Send
5 Signal Ground - Shell
6 Not Used
RS 232
CONTRAST
Telephone
MIC
VOL
3 2 1
Entry System
SPK
FEED VOL
BACK
3 2 1
Circuit Board
TONE OFF
PHONE CGND PSW
DB-9 DB-25
Pins Pins
3 2
2 3
7 4
8 5
5 7
TONE ON
ON
MASTER
CODE
OFF
KEYPAD
NO NC
RING
MIC COM SPKR IMD 5VDC IMC Z A 2C 2RY 1C 1NC 1NO BAT 16AC 16AC
25