Command Access DS1+ Delay/Sequ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$175.00
$138.42
Command Access Command Access DS1+ Delay/Sequencer Board, 12-24VDC CAT DS1+

Command Access DS1+ Delay/Sequencer Board 12-24VDC with Bi-Directional Control

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Model: DS1+

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

$175.00
$138.42
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Command Access DS1+ Delay/Sequencer Board 12-24VDC with Bi-Directional Control

Professional Electronic Access Control Timing Solution

The Command Access DS1+ Delay/Sequencer Board provides precise timing control for electronic door hardware integration with automatic operators, vestibules, phone entry systems, and access control applications. Operating on 12-24V AC/DC with 18mA standby current draw, this compact 3¼" x 2¼" x ¾" board features bi-directional sequencing capabilities and three adjustable delays up to 30 seconds maximum. The unit offers SPDT contacts rated at 3 amps @ 30VDC with 100,000 operations electrical life at rated capacity.

Professional Features & Benefits

  • Compact Design: 3¼" x 2¼" x ¾" dimensions allow installation in tight spaces with simple Velcro or double-sided tape mounting.
  • Flexible Power Options: 12-24V AC/DC operation with low 18mA standby current draw and 40mA maximum consumption for efficient system integration.
  • Bi-Directional Sequencing: Advanced sequencing mode enables door control in both directions for sophisticated access management applications.
  • Triple Timing Control: Three adjustable delays up to 30 seconds maximum with easy potentiometer adjustments for precise timing customization.
  • Heavy-Duty Relay Output: 2 x Form C (SPDT) contacts rated at 3 amps @ 20VDC with 100,000 operations electrical life at rated capacity for reliable switching performance.
  • Versatile Input Options: Accepts both wet and dry inputs (2 Wet + 2 Dry contacts) with 3-30V AC/DC optically isolated, non-polarity sensitive design.
  • Visual Operation Confirmation: Built-in LEDs provide immediate visual relay confirmation for troubleshooting and system verification.
  • Manufacturer Warranty: 3-Year Warranty for added confidence and protection in commercial applications.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Subgroup: Power Supplies
  • Product Type: Boards
  • Product Voltage: 12-24VDC
  • Series: DS1+ Series
  • Subcategory: Power Supply

Professional Applications

  • Automatic Door Operator Integration
  • Vestibule Access Control Systems
  • Telephone Entry System Applications
  • Electronic Door Hardware Sequencing
  • Access Control System Timing
  • Smoke Evacuation System Control
  • Multi-Door Coordination Systems

Why Choose Command Access Quality?

Command Access DS1+ Delay/Sequencer Boards deliver professional-grade reliability with SPDT contacts rated for 100,000 operations at full capacity and 500,000 operations at half-rated capacity. Backed by a comprehensive 3-Year Warranty, this timing control solution is engineered for demanding commercial applications where precise sequencing and dependable performance are essential.

Manufacturer Resources

Command Access Catalog

Product Specs

Product Group:
Electronic Access Controls
Series:
DS1+ Series
Subcategory:
Power Supply
Commercial/Residential:
Commercial
Product Type:
Boards
Product Subgroup:
Power Supplies
Product Voltage:
12-24VDC
Product Category:
Electronic Access Controls
Department:
Door Hardware

Command Access DS1+ – Frequently Asked Questions

1) What does the Command Access DS1+ delay/sequencer board actually do in an access control system?
The DS1+ is a timing board that sequences electronic door hardware, so one input can fire several things in order instead of all at once. Typical use: an access control release or push plate energizes an electric latch retraction or strike, the board holds the delay, then triggers the automatic operator once the lock has actually released. It carries three adjustable delays, each up to 30 seconds, set with potentiometers on the board. It is not a power supply, it does not power the lock; it switches other devices and needs its own 12-24V AC/DC feed.
2) Can the DS1+ board switch my electric strike or maglock directly, or do I need a separate relay?
Switching is on board. The DS1+ has two Form C (SPDT) relay outputs rated 3 amps, with 100,000 operations electrical life at rated capacity and 500,000 at half rated capacity. That handles most strikes, magnetic locks and operator trigger inputs directly. What it does not do is supply the current, the load still runs off your own power supply, and anything drawing more than 3 amps (a high inrush latch retraction device, for example) needs an interposing relay or a dedicated retraction supply between the board and the hardware.
3) Will the DS1+ sequencer work off 24VDC, and how much current does it draw from my supply?
It runs on 12-24V AC/DC, so either a 12V or 24V system feeds it, and AC output supplies work too. Draw is small: 18mA standby, 40mA maximum. That means you can hang it off an existing access control power supply without recalculating your whole load budget, since the board itself is a rounding error next to the lock hardware it is sequencing.
4) Does the DS1+ take a dry contact from a card reader, or does it need a voltage input?
Both. The DS1+ accepts 2 wet and 2 dry inputs. The wet inputs take 3-30V AC/DC, are optically isolated, and are not polarity sensitive, so you can wire from a reader relay, a phone entry system output, a push plate, or a controller's voltage output without worrying which leg is which. Dry contact from a REX, key switch or card reader form C output lands on the dry inputs.
5) What is bi-directional sequencing on the DS1+ and when do I need it?
Bi-directional means the board sequences the door in both directions, entry and exit, rather than only on a single trigger path. It matters on vestibules and on openings where someone approaches from either side: the same board can run the release-then-operate order coming in and going out, instead of doubling up boards or wiring one direction as a straight parallel trigger. For a single-direction opening, for example an exterior door with a reader outside and free egress, you are not using the feature but the board still works as a plain three-stage delay.
6) Can I use one DS1+ to coordinate a pair of automatic doors in an airlock vestibule?
That is one of the named uses. With two relay outputs and three independent delays, a single DS1+ can stagger an interior and exterior operator so the second leaf does not open until the first has cycled, which is the point of an airlock. What decides it is your relay count: two Form C outputs is two switched devices. If the sequence needs to drive two operators plus a lock release plus a shunt, you are past two contacts and need a second board.
7) How do I know the DS1+ relay actually fired when I am troubleshooting an operator that will not open?
Onboard LEDs give relay confirmation, so you can see whether the board received the input and dropped the contact without putting a meter on it. That splits the fault fast: LED lit and the operator dead points downstream at the operator or its trigger input; no LED means the trigger input never arrived and you are looking at the reader, the push plate, or the wet/dry input wiring.
8) Is the Command Access DS1+ meant for commercial buildings or will it work in a house?
Commercial is what it is built for, and the applications reflect that: automatic operator integration, vestibules, telephone entry, smoke evacuation control and multi-door coordination. There is nothing stopping it working on a residential opening electrically, at 12-24V AC/DC with a 40mA maximum draw, but the reason to buy it is a job with sequenced hardware, not a single residential door where the operator's own onboard timing already does the work.
9) Is there more than one version of the DS1+ board to specify when ordering?
One model, DS1+. There is no voltage variant to choose, no handing, and no output option, the single board covers 12-24V AC/DC and both wet and dry input types. What you do set is on the board after install: the three delay potentiometers and whether you wire it for bi-directional sequencing.
How fast can I get the Command Access DS1+ 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 Command Access DS1+ come with a warranty?
Absolutely. The Command Access DS1+ 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 Command Access DS1+?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Command Access DS1+ from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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