Chamberlain EL2000 - Manual (Page 21)

Page 19
Wiring a Postal Lock Switch / Internal Camera (CCTV)
Wiring a Postal Lock Switch - EL25 Models Only
The Post Office requires installation of a postal lock if postal carriers do not have access to a controlled area.
Contact the local post office and arrange for them to install the postal lock while you are on site. The postal lock
requires a switch to activate one of the four relays (Configurable with programming number
69 , in the Keypad
Programming Manual).
Wiring an Internal Camera [CCTV]
An Optional CCTV (Close Circuit Television) camera can be installed inside the unit. Refer to instructions supplied
with the camera kit for more information.
IO Input Board
J2
J3
J5
J7
J6
J4
POSTAL
AUTO
J1
POWER
12VAC/DC
Use
18-24 AWG
Common
In
N.C.
Switch
Input Board
(See page 6)
DO NOT overload the removable terminal
block connectors. One wire per hole.
RG-59u Coaxial Cable 1000 Feet Maximum
(Monitor with a .25 volt p-p composite signal sensitivity)
A Closed Circuit Monitor
Home Entertainment
System
Contact your dealer/ installer
for more information
EL2000 EL25
OR
NOTE: In the EL2000 models, the postal lock switch is pre-wired.