CAMDEN CX-33, Installation Instructions Manual

Page 6 of 28

CX-33 Advanced Logic Relay Installation Instructions

provided on the relay outputs – they are dry contacts).

Once input and output connections are made, program the 
unit according to the General Programming Instructions on 
page 1, and walk-test the installation. Timing adjustments 
may need to be made.

It is NOT recommended to add the “Delay-on-activate”  
(or nuisance delay) feature in this mode!

Once the desired operation is achieved, proceed to Section 4, 
Pg 9 for 

System Inspection Instructions

.

Section 3H

Normally Locked Restroom  
(Mode 8)

In this mode, control of a normally locked single occupant 
barrier-free washroom is obtained. It allows the user to secure 
the door from the inside by depressing a Push-to-Lock button. 
The exterior means of ingress is removed electronically from 
the circuit.

To exit the washroom, simply exit manually via the store-room 
function lever-handle set (the Door Contact Switch resets the 
relay), or, press the interior wall switch to unlock and signal 
the door operator. Exiting the washroom resets the relay, and 
the door is re-locked upon closure. 

The CX-33 also provides a relay dedicated for “Occupied & 
“Door Locked” signage (recommended).

Refer to 

Diagram 8

, (Page 19) for the following connections.

The outside means of ingress – Keypad, Key switch, or  
Prox-reader, plus the inside wall switch, and Push-to-Lock 
switch are all N.O. momentary devices. Connect as shown. 
The Door Contact circuit must be closed when the door is 
closed and open when the door opens.

A fail-secure electric strike is typically used, although a 
fail-safe strike can also be used. Connect to Relay 1. The 
automatic door operator connects to Relay 2, and the signage 
connects to Relay 3. (As a reminder, no power is provided on 
the relay outputs – they are dry contacts).

As a safety feature, the door cannot be “secured” via the 
“Push-to-Lock” button until the door is completely closed (to 
prevent kids from pressing the lock button and running away).

Once input and output connections are made, program the 
unit according to the General Programming Instructions on 
page 1, and walk-test the installation. Timing adjustments 
may need to be made.

It is NOT recommended to add the “Delay-on-activate”  
(or nuisance delay) feature in this mode!

Once the desired operation is achieved, proceed to Section 4, 
Pg 9 for 

System Inspection Instructions

.

Section 3J

Lock-out Relay Plus  
(Mode 9)

This mode combines, for the first time, a lintel mount safety 
sensor lock-out relay (LOR) with a switching network (aka 
make/break relay). The voltage sensing circuit can be utilized 
with motors/controls up to 120 volts AC/DC. The adjustable 
hold timer (lock-out) is then matched to the door closing 
time. “Cancellation” inputs are provided for connection to 
rail-mounted door beams.

In addition, three inputs and two relays are provided for the 
switching network function.

Refer to

 Diagram 9

, (Page 20) for the following connections.

LOR Circuit:

A parallel connection is made to the two motor wires running 
from the Operator (motor) to its control. If the motor is AC, 
then polarity is not an issue. The CX-33 is triggered by the  
AC voltage going from high to low.

If the motor is DC, then the wires are polarity sensitive. If 
Relay 3 LED doesn’t illuminate when the door is closing, then 
just reverse the two terminal connections at the CX-33.

Input 1 is for the N.O. relay contacts of the photo beam.  
The beams are typically mounted at the end of guide rails 
and designed to reset the LOR in the event anyone should 
walk into the swing path when the door is in the closing cycle.

Relay 3 output is to be connected in SERIES with the safety 
device and the Safety Circuit of the operator.

Optional Switching Network:

Wire the activating device(s) to DRY 1, DRY 2 or DRY 3 
terminals. Wire the outputs as shown to Relays 1 & 2.

Once input and output connections are made, program the 
unit according to the General Programming Instructions on 
page 1, and walk-test the installation. Timing adjustments 
may need to be made.

It is NOT recommended to add the “Delay-on-activate”  
(or nuisance delay) feature in this mode!

Once the desired operation is achieved, proceed to Section 
4, Pg 9 for

 System Inspection Instructions

.