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Camden CX-12 Plus Door Interface Relay
CX-12 PLUS Door interface relay is an economical solution for interconnecting automatic doors with access control, fire alarm and time systems. This versatile relay is also designed to control two automatic doors in vestibule applications as well as control of automatic doors in basic restroom control applications. CX-12 PLUS has eight built-in operating modes with delay-on-release and delay-on operate time adjustment, and (2) heavy duty form C relays. The CX-12 PLUS Interface Relay is ideal for control and integration of automatic doors utilizing electro-mechanical locks (including electric strikes and magnetic locks) in any commercial, institutional and multi-unit residential application. Operating modes support bi-directional sequencing of two vestibule doors, basic restroom control, both secured and unsecured, a maintained output for fire alarm integration, and a telephone entry panel input that simplifies wiring, and eliminates the need for an isolating relay.
Camden has combined the industry leading features of our CX-12 Switch Network, including easy system interconnection, and our CX-22 Dual Function Relay, providing bi-directional door sequencing and basic restroom control.
CX-12 Plus Door Interface Relay has 8 programming modes with (3) adjustable time delays, each up to 30 seconds. There are (2) Dry and (2) Wet inputs, with (2) SPDT Form 'C' outputs.
Features
- Designed for easy interconnection of automatic doors with access control, time control, telephone entry and fire alarm systems
- Bi-directional sequencing of two door operators in vestibule applications
- New ‘PLUS’ feature supports basic restroom control (locked & unlocked)
- 8 Programming modes with (3) adjustable time delays, each up to 30 seconds
- (2) Dry, (2) Wet inputs, and (2) SPDT Form ‘C’ outputs
- Momentary, maintained and latching (ratchet or alternative action) relay operation
- Compact design fits anywhere
Specifications
| Voltage: | 12/24V AC/DC |
| Current Draw: | 20 mA Idle, 60 mA Operating |
| Response Time: | 0.3 Seconds |
| Inputs: | 2 Wet, & 2 Dry, N.0. |
| Outputs: | 2 x Form C (SPDT) |
| Contact Rating: | 3 Amps @ 30V DC |
| Electrical Life: | 100,000 @ Rated Capacity |
| Modes: | 8 |
| Time Delay D.O.R #1: | 1-30 Seconds |
| Time Delay D.O.O #2: | 1-30 Seconds |
| Time Delay D.O.R #3: | 1-30 Seconds |
| Dimensions:: | 3-1/4"W x 2-5/16"H x 11/16"D (83mm x 58mm x 18mm) |
Manufacturer Resources
Relay Selection Chart_R1
Product Specs
- Product Group:
- Electronic Access Control
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Interface Relay
- Subcategory:
- Parts and Accessories
- Commercial/Residential:
- Commercial
- Product Attribute:
- Parts and Accessories
- Product Category:
- Electronic Access Control
- Department:
- Door Hardware
Camden Door Controls CX-12PLUS – Frequently Asked Questions
1) Can the Camden CX-12 Plus relay sequence two automatic door operators in a vestibule?
Bi-directional sequencing of two vestibule doors is one of the CX-12 Plus relay's eight built-in operating modes. It holds the inner door until the outer one has cycled, and the timing is set with three adjustable delays of 1 to 30 seconds each, so you can tune how long each leaf waits before the next one is released. That is the main reason people pick this over a plain single-door interface relay.
2) Will the Camden CX-12 Plus run on 12V or 24V, and how much current does it draw?
It takes 12 or 24V, AC or DC, so it drops onto whatever supply is already feeding the operator or the access control panel. Draw is 20 mA idle and 60 mA operating, which is small enough that you can usually add it to an existing power supply without recalculating the whole loop.
3) Do I need an isolating relay between a telephone entry panel and my door operator if I use the CX-12 Plus?
No. The CX-12 Plus has a dedicated telephone entry panel input, which is exactly what removes the isolating relay from that wiring run. That is one of the stated reasons for the two wet inputs alongside the two dry N.O. inputs: the wet inputs accept a voltage signal from the entry panel directly, rather than needing a contact closure.
4) Can the CX-12 Plus hold automatic doors open on a fire alarm signal?
Yes, there is a maintained output mode for fire alarm integration. Maintained means the output stays in its changed state as long as the alarm condition is present, rather than pulsing for the delay time and dropping back. The relay also supports momentary and latching (ratchet or alternate action) operation, so the same unit covers a push plate, a timed release, and the alarm interface depending on which of the eight modes you set.
5) How do I control a single-occupancy restroom door with a Camden relay, locked and unlocked?
The PLUS in CX-12 Plus is the basic restroom control feature, and it handles both the secured and the unsecured version of that application. Unsecured is the common case: press to open, the door cycles, and an occupied indication runs off the second relay. Secured adds the lock so the door stays locked while the room is in use. Both are among the eight programming modes, and the three 1 to 30 second delays set the dwell and the release timing.
6) What is the difference between wet and dry inputs on the Camden CX-12 Plus, and which one do I wire my card reader to?
There are four inputs total: two dry, normally open, and two wet. A dry input wants a bare contact closure, which is what a card reader relay output, a push plate, or a request-to-exit device gives you. A wet input wants an applied voltage, which is what you get from a telephone entry panel or a device with a powered output. Wiring a powered output into a dry input, or a dry contact into a wet input, is the usual reason one of these does not trigger on the first test.
7) What are D.O.R. and D.O.O. on the Camden CX-12 Plus timing adjustments?
D.O.R. is delay-on-release and D.O.O. is delay-on-operate. Delay-on-operate is how long the relay waits before it acts once it sees the input, which is what lets a lock release finish before the operator pushes the door. Delay-on-release is how long the output stays active after the input goes away, which sets your door hold time. The CX-12 Plus gives you two delay-on-release adjustments and one delay-on-operate, each adjustable 1 to 30 seconds.
8) Is the Camden CX-12 Plus a replacement for the CX-12 switch network or the CX-22 dual function relay?
The CX-12 Plus combines features from both: the system interconnection of the CX-12 Switch Network and the bi-directional door sequencing and basic restroom control of the CX-22 Dual Function Relay. If you were specifying a CX-12 for interconnection and a CX-22 for sequencing on the same job, the CX-12 Plus covers both functions in one board.
9) How fast does the CX-12 Plus relay respond, and how long will the contacts last?
Response time is 0.3 seconds and electrical life is 100,000 operations at rated capacity. On a vestibule or a restroom door running a few hundred cycles a day, that contact life is the number to weigh against the traffic the opening actually sees.
10) Is the Camden CX-12 Plus meant for commercial buildings or houses?
This is a commercial-duty device, listed for commercial use, and the applications it is built for are commercial, institutional and multi-unit residential: office entries, school and healthcare vestibules, apartment and condo lobbies with a telephone entry panel. It is not a residential doorbell-grade part.
How fast can I get the Camden Door Controls CX-12PLUS delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Camden Door Controls CX-12PLUS come with a warranty?
Absolutely. The Camden Door Controls CX-12PLUS is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Camden Door Controls CX-12PLUS?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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