CAMDEN CX-33, Installation Instructions Manual

Page 1 of 28

Section 1

General Description

The CX-33 is the latest generation multi-purpose logic control. 
It is designed to be versatile yet user friendly with easy to 
understand terminology and adjustments. The 15 different 
operating modes ensure it will be useful in nearly every 
automatic door or security application.

A total of 5 inputs (4 dry, and one wet or powered) allow for 
more flexibility in wiring to different types of activating devices. 
The wet or powered input is useful when connecting to 
3-terminal radio receivers, telephone entry systems panels, or 
for connecting to motors when used as a Lock-out Relay.

The 3 buttons for mode selection, including separate UP and

DOWN buttons, offer fast and easy programming. The large 
3-segment display is the easiest to view and understand in 
the industry.

A total of 3 heavy-duty 3 amp relays allow for varied 
sequencing applications. For example, in restroom use, the 
third relay is ideal for “Occupied” or “In Use” signage.  
(Note: ouputs are dry, not powered.)

Section 2

Installation

IMPORTANT: Do not apply power to the unit until you 

have read the instructions fully and made the required 

adjustments.

Mounting

The CX-33 should be mounted in a clean dry location out  
of direct contact with the elements. Suitable locations 
include inside a metal enclosure, operator header, or above 
a false ceiling.

The Display & LED’s are visible through the clear plastic 
case, which also has cutouts for the programming buttons 
and terminal strips. Once the unit has been wired and 
adjusted, it may be tucked up into the operator header or 
affixed using the supplied Velcro or 2 sheet metal screws.

Wiring

Wiring of this unit is dependent on the mode desired, 
however the following commonalities apply:

The unit will operate on 12 or 24 volts, AC or DC. Connect to 
Terminals 1 & 2, which are non-polarity sensitive.

NOTE: We 

highly

 recommend the use of a regulated power 

supply when powering equipment in certain modes such as 
the barrier-free washroom application where the strike power 
may be maintained from a few minutes to many hours. We 
offer a low-cost board-only regulated power supply - CX-PS13, 
which will supply clean, filtered & regulated 12 or 24VDC 
power for the strike and CX-33. 

CX-33 Advanced Logic Relay

Installation Instructions

Firmware Ver. 3.2

1- #6 x 3/4” Self Tapping  Screws
1- 1 1/2” x 1 1/2” Velcro
1- 50

Ω

, 1W Resistor

This Package Includes: