DormaKaba CA4500 4 Reader/Door...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,358.00
$2,036.04
DormaKaba CA4500 4 Reader/Door Control Unit

DormaKaba CA4500 4 Reader/Door Control Unit

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Model: CA4500

In Stock (leaves warehouse same day if ordered before 3pm ET)

$3,358.00
$2,036.04
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Control Unit Features & Capabilities

  • Network TCP/IP ready (with NETCOM2P/6P)
  • Easily configurable reader settings supporting many Wiegand protocols
  • Up to 6,000 transactions retained in file buffer
  • Auto transfer protocol uploads file buffer when communication is re-established after an interruption
  • Expanded flash memory allows for 45,000 credentials (expandable to 90,000 with special hardware order)
  • Robust lockdown and global communication among multiple ACUs (requires CIMs) and multiple communication buses (requires CIM-Links)
  • Removable terminal blocks
  • Accommodates 512 time schedules and 511 group levels
  • Multiple inputs and outputs for expansion
  • Supports assigning a single credential holder to 10 different groups
  • Dual processors ensure uninterrupted operation during uploads and downloads

CA4500 - 4 Reader Access Control Unit

Each CA4500 includes the following components.

  • 1 - CA4500B ACU control board
  • 1 - OCB8 relay board
  • 1 - DPS-15 dual linear power supply
  • 1 - Black metal enclosure

Manufacturer Resources

Product Specs

Product Group:
Electronic Access Controls
Product Subgroup:
Controllers, Power Supplies and Transformers
Number of Outputs:
(4) Auxiliary Output Relays; (8) Expansion Auxiliary Output Relays; (64) I/O Outputs; (4) Door Output Relays
Number of Credential Holders:
45000
Number of Reader Ports:
2
Product Type:
Power Supplies
Department:
Door Hardware

Dormakaba CA4500 – Frequently Asked Questions

1) What comes in the box with the DormaKaba CA4500 access control unit?
The CA4500 ships as a complete panel: the CA4500B ACU control board, an OCB8 relay board, a DPS-15 dual linear power supply, and a black metal enclosure. You are not buying a bare board, so there is no separate enclosure or power supply to source. Readers, credentials, door hardware, and network communication modules are ordered separately.
2) How many doors and readers will the CA4500 actually control?
It is built as a 4 reader/door control unit and provides four door output relays. The board itself carries two reader ports, so a four-door in/out configuration depends on how you expand the reader side. Output capacity is generous: four auxiliary output relays, eight expansion auxiliary output relays, four door output relays, and 64 I/O outputs for tying in alarms, aux devices, and monitored points.
3) How many cardholders can a DormaKaba CA4500 panel hold?
Expanded flash memory on the CA4500 stores 45,000 credentials, and that can be taken to 90,000 with a special hardware order. It also holds 512 time schedules and 511 group levels, and a single credential holder can belong to up to 10 different groups. For a mid-size campus or a multi-tenant commercial building, that is enough headroom to avoid splitting the population across panels.
4) Will the CA4500 work with my existing card readers?
Reader settings are configurable and support many Wiegand protocols, so most standard Wiegand output readers can be terminated to it. Match the reader's Wiegand bit format and voltage to the panel configuration before you wire it. Terminal blocks are removable, which makes bench-wiring and swapping readers on a live panel far less painful.
5) Can I put the CA4500 on our building network instead of running serial?
Network TCP/IP operation is supported with a NETCOM2P or NETCOM6P module, ordered separately. That is the part integrators most often forget on the purchase order, so add it up front if the panel is going on a LAN rather than a direct or serial connection.
6) What happens to access records if the network connection to the panel drops?
The CA4500 keeps running standalone. Its file buffer retains up to 6,000 transactions, and an auto transfer protocol pushes that buffer up to the host as soon as communication is restored, so you do not lose the audit trail during an outage. Dual processors also keep the panel operating normally while uploads and downloads are in progress, meaning a large cardholder download does not lock people out of the doors.
7) Can the CA4500 do a building-wide lockdown across multiple panels?
Yes, and it needs extra hardware to do it. Lockdown and global communication among multiple ACUs requires CIMs, and spanning multiple communication buses requires CIM-Links. If a facility-wide lockdown is part of your scope (schools, healthcare, government), those modules belong on the same order as the panels.
8) What is the difference between the DormaKaba CA4500 and a power supply like the Altronix AL1024ULACMCB?
They do different jobs. The CA4500 is an access control unit: it ships as a CA4500B ACU control board, an OCB8 relay board, a DPS-15 dual linear power supply and a black metal enclosure, and it holds credentials, time schedules and group levels to make the access decision at the door. The Altronix AL1024ULACMCB is a power supply and access power controller with 8 PTC outputs delivering 24VDC at 10A from a 115VAC 60Hz input in a grey enclosure - it distributes and switches power to locks, but it does not store credentials or read cards. On a job with electrified locks and a separate head-end controller, the Altronix is the power side; the CA4500 brings its own DPS-15 supply along with the control logic.
9) I only need to power and control one electrified opening - is there something simpler than the CA4500?
Yes. The CA4500 is built for multi-door work, with 4 door output relays, 4 auxiliary output relays and 64 I/O outputs, plus lockdown and global communication across multiple ACUs. For a single opening, the RCI DKPS-2A is a power supply with 8 outputs at 12/24VDC, 2A for access control systems, and the Von Duprin PS902 is a 2A 12/24VDC field selectable base power supply for access control. Both power the hardware without the credential database and scheduling engine the CA4500 carries.
10) Our opening is a delayed egress exit device, not a card reader door. Should we use the CA4500?
Not on its own. The CA4500 is a reader-based control unit configurable for many Wiegand protocols, so it suits card and credential openings. For delayed egress exit devices the BEST PS161-6 is the purpose-built power supply, with 120V input, 12/24V output and 6A capacity. For motorized latch retraction exit devices the BEST RPSMLR2 series power supply is the matching part. Those supplies drive the device; the CA4500 would only be added if the same opening also needs credential-based access control.
11) Is the CA4500 the same thing as an access control power supply like a Securitron AQL or Von Duprin PS902?
No, and it is an easy mix-up. Units like the Securitron AQL4 switching supply or the Von Duprin PS902 base power supply just make regulated low voltage DC to run locks and strikes. The CA4500 is a decision-making access control unit, holding cardholders, schedules, and group levels and switching door relays on a valid read. It happens to include its own DPS-15 dual linear power supply in the enclosure. If all you need is power for mag locks or electric strikes, an AQL or PS902 is the correct part; if you need to control who opens which door when, you need the CA4500.
12) I only need to control one or two doors with simple logic. Is the CA4500 overkill?
For a small standalone application it likely is. A 45,000-credential, four-door panel with 512 schedules is scaled for a managed system with head-end software behind it. For a single opening with timing and simple logic, a Detex 10-800 Series universal logic controller with its 120VAC/24VDC supply and battery backup, or an RCI DKPS-2A power supply with eight 12/24VDC outputs, covers far simpler jobs. Step up to the CA4500 when you need credential-based control and an audit trail.
13) Does the CA4500 supply enough power to run my electric strikes and mag locks too?
The panel includes a DPS-15 dual linear power supply for its own operation. On a job with several mag locks or motorized latch retraction devices, plan a separate locking power supply sized to the load rather than leaning on the panel supply. Altronix AL1024ULACMCB gives 24VDC at 10A across eight PTC outputs for a bank of locks, and BEST RPSMLR2 is built specifically for motorized latch retraction exit devices, which draw a heavy inrush most general supplies will not handle.
14) Can I expand the CA4500 later without replacing the panel?
There is real room to grow. Multiple inputs and outputs are provided for expansion, including eight expansion auxiliary output relays and 64 I/O outputs on top of the four door relays and four auxiliary relays. Credential capacity can go from 45,000 to 90,000 with a special hardware order, and multi-panel linking is added with CIMs and CIM-Links. Specify the 90,000 build at order time if you expect the population to grow, since that is a hardware-level change.
15) We need battery backup at the access control panel. Does the CA4500 cover that or do we need a different unit?
The CA4500 ships with a DPS-15 dual linear power supply in its enclosure, and its file buffer retains up to 6,000 transactions with an auto transfer protocol that uploads the buffer when communication is restored after an interruption. If standby battery power for the locking hardware is the requirement, comparables that state it include the Adams Rite PS-1 regulated power supply, 1 amp at 12/24 volts DC with battery backup, the Command Access PS204/204B linear power supply at 2A 24VDC with battery backup, and the Detex 10-800 universal logic controller with a 120VAC/24VDC power supply and battery backup.
16) Is the Aiphone AC-PS1250 a substitute for the DormaKaba CA4500?
No. The Aiphone AC-PS1250 is a UL listed 12V DC 5A power supply for AC Series access control kits - it energizes that kit's hardware. The CA4500 is a four reader/door control unit that stores 45,000 credentials, expandable to 90,000 with a special hardware order, and handles 512 time schedules and 511 group levels, with dual processors so operation continues during uploads and downloads. The Aiphone unit is a power source tied to its own kit, not a multi-door credential controller.
17) What would we use instead of the CA4500 for a standalone electric strike or maglock circuit with no card readers?
A regulated low voltage supply sized to the lock. The SDC 620 series is a 1 amp regulated and filtered supply with dual voltage selection, the SDC 632 is the 2 amp version and the SDC 634 the 4 amp version, all with dual voltage selection. Securitron switching supplies cover the same ground: the AQD1 at 12/24 VDC 1 amp, the AQL4 at 12/24VDC 4/3 amp, and the AQS1210 at 12 VDC 10 amp. None of these carry credentials or reader ports, which is what the CA4500 adds when readers go on the opening.
18) We need a timed unlock on one door. Is the CA4500 overkill?
For a single timed release it likely is. The CA4500 accommodates 512 time schedules and 511 group levels and lets a single credential holder sit in 10 different groups, which is scheduling depth for a facility rather than a door. The ROFU 9126T is a plug in mini power supply, 12 VDC at 1.5A with time delay, for a single circuit. The BEST ELR150 series is a power supply control module for electronic access control if the release needs to tie into a larger system.
19) Does the Detex 10-800 controller do the same thing as the CA4500?
They overlap but are not equivalents. The Detex 10-800 is a universal logic controller with a 120VAC/24VDC power supply and battery backup - logic and power in one box. The CA4500 is a four reader/door control unit with 4 door output relays, 4 auxiliary output relays, 8 expansion auxiliary output relays and 64 I/O outputs, network TCP/IP ready with a NETCOM2P or 6P, and configurable for a range of Wiegand reader protocols. Choose by whether the opening runs on credentials and network reporting or on local logic sequencing.
20) Which comparable parts are not alternatives to the CA4500 at all?
A few in the same family solve unrelated problems. The ROFU 10305-LA/10306-LA is a tamper resistant power transfer hinge rated 1.5A at 42V in a plastic white finish - it carries current through the door, it does not control anything. The Command Access CAT Field Tester is a portable 12-24VDC power supply that runs on DeWalt, Makita and Milwaukee batteries, a bench and jobsite tool. The Securitron BPSS is a boxed solar power supply for sites without line power. None of them replace the reader and credential functions of the CA4500.
21) For a small linear 24VDC circuit feeding a lock near the CA4500 panel, what supplies pair with it?
The CA4500 already contains a DPS-15 dual linear power supply for the control unit itself, so added locking loads are usually fed from a separate supply. Comparable linear options include the Command Access PS1 series, a 24VDC linear power supply with 1 amp output, and the Command Access PS210, a UL 6E/CSA linear power supply with 1.5A at 24VDC and boost circuitry. The SDC 631 is a 1.5 amp regulated and filtered DC power controller with dual voltage selection. Size the supply to the lock's inrush and holding current.
How fast can I get the Dormakaba CA4500 delivered?
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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 Dormakaba CA4500 come with a warranty?
Absolutely. The Dormakaba CA4500 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 Dormakaba CA4500?
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