Powering Up Access Control Systems

If an access control system involves more than a single door, a single power supply won't suffice.


Power supplies are an important part of any electrical access or security system. The power requirements for an access control system are therefore typically divided into two categories: power for the controls/readers and power for the locks. In reality, the power is used for several purposes...


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StrikeIt™ will operate up to two 24VDC panic hardware devices simultaneously. It is designed to handle the high current surge that panic hardware locking devices demand. A programmable timed lock release feature ranging from one to 30 seconds, supervised lock outputs and two programmable fire alarm disconnect options are all included, along with simultaneous 12VDC and 24VDC constant power outputs for access control accessories. Two form “C” follower relays and two form “C” delayed momentary relays which follow the lock outputs are provided for activation of automatic door operators. On-board circuitry facilitates stand-by battery charging.

For more information, call 1-888-258-7669, e-mail info@altronix.com or visit www.altronix.com

AL600ULX Power Supply/ Charger

The Altronix Model AL600ULX power supply converts an 115VAC 60Hz input, to a 6 amp of continuous supply current @ 12VDC or 24VDC non-power limited output.

It meets the following agency listing requirements:

  • UL Listed for Access Control Systems (UL294), Power Supplies for Fire Protective Signaling Systems (UL1481).
  • CUL Listed - CSA Standard C22.2 No.205-M1983, Signal Equipment
  • CSFM - California State Fire Marshal Approved
  • MEA - NYC Department of Buildings Approved
  • FM Approved
  • NFPA 72 Compliant

    AL600ULX Features/Specifications:
  • 12VDC or 24VDC selectable output.
  • 6 amp of continuous supply current.
  • 115VAC 60Hz, 1.9 amp input
  • Filtered and electronically regulated outputs
  • Short circuit and thermal overload protection
  • Built-in charger for sealed lead acid or gel type battery backup
  • Maximum charge current .7 amp.
  • Zero voltage drop upon transfer to battery backup
  • AC input and DC output LED indicators.
  • AC fail supervision (form “C” contact rated @ 1 amp 28VDC).
  • Low battery and battery presence supervision (form “C” contact rated @ 1 amp 28VDC)
  • Lifetime warranty

The enclosure accommodates up to two 12VDC/7AH batteries. Dimensions are 5”H x 13”W x 3.25”D, with half and three-quarter combination knockouts.

Honeywell Power Products

HPP’s Access Control Power Supplies offer significantly expanded capabilities. The core supplies, HP300ULX, HP400ULX and HP600ULX, are available in three power output levels: 2.5A, 4A and 6A. By adding the HPMOM5 fire door controller to the supply family, the HP300ULM, HP400ULM and HP600ULM Series complete the power supply package.

Adding the HPACM8 access control card to the base supplies makes the HP600ULACM8 capable of powering the most demanding applications. This power supply family has a wide range of applications for access control systems that require door control with additional power.

HPP Access Control Power Supplies carry both UL and ULC ratings for fire, access control and intrusion systems and have a large enclosure to ease wiring. They feature circuit-breaker battery protection, AC input and DC output LED diagnostic indicators, AC fail and battery monitoring contacts to aid in supervision, and a built-in charger for sealed lead-acid or gel-type batteries. In addition, the Power Supplies offer a filtered and electronically regulated output, and an automatic switchover to standby battery when AC fails. All of the power supplies are 12vdc or 24vdc field- selectable.

The HPP HPS312CX is a switching power supply/charger that converts low-voltage AC input into 6, 12 or 24VDC at 3.0A of continuous supply current. The HPS312CX also comes kitted with an HPP HPT2450 plug-in transformer, a 5 AH battery, a steel enclosure, and connecting hardware. This general-purpose power supply has a wide range of applications for access control systems that require additional power, and will operate with a non-linear power source.

For more information, call 800-345-6770 or visit www.honeywellpower.com.

Locknetics 505 Power Supply

The 500 Series power supplies are available in three models each are UL Listed as a General Purpose Power Supply. The 505, 510 and 515 Series all feature low voltage DC, regulated, filtered power supplies with a built in battery charging circuit and are designed to provide easy system interface with Locknetics locking devices, station controls and consoles.

A NEMA Grade 1 approved enclosure is universal throughout the line, measuring 12”x12”x4”. The 500 Series provides a built-in battery charging regulated, with a built in battery charging circuit.

Standby battery kits (SBP1 or SBP2) can be added to the 505 Series power supply at the factory or in the field.

A key lock cover, power line cord and emergency interface relay module (EIR-5) are available as factory installed options.

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