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Essex K1-26S-ERM3 ALL-IN-ONE Reader/Access Controller w/ Encoded Relay ModuleEssex K1-26S-ERM3 ALL-IN-ONE Reader/Access Controller w/ Encoded Relay Module
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  • Essex K1-26S-ERM3 ALL-IN-ONE Reader/Access Controller w/ Encoded Relay Module
  • Essex K1 ALL IN ONE Reader/Access Controller

Essex K1-26S-ERM3 ALL-IN-ONE Reader/Access Controller w/ Encoded Relay Module

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The K1 Series is an extremely versatile, All in One Keypad capable of providing either stand-alone access control or one of several industry standard outputs. Easily configured in the field, the K1 Series offers a migration path from an entry-level single door access control system to an OEM compatible Keypad Reader. For stand alone access control operation, the K1 Series requires external relays or an optional Encoded Relay Module (ERM). Field selectable configuration options include:

• 26 Bit Wiegand Reader
• 8 Bit Word Reader
• BCD Reader
• ABA Track II Reader
• Serial ASCII Reader
• Stand Alone Access Controller

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Product Description


• K1–26: Mullion or surface mount
• 502 Codes: 1 Master Code, 500 User Codes, 1 Temporary Code
• Variable Length Codes: 3 to 8 digits in length
• 3 Programmable Open Collector Outputs: Stand Alone Access requires either external relays or Encoded Relay Module
• Easily Programmable: Program from the Keypad or via EZ Key PC Programming Software
• Tamper Alarm: Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds
• Remote Bypass (REX): Activates main output for programmed output time
• Anti-tailgating: Helps prevent unauthorized access
• Programmable Output Time: 1 to 99 seconds
• Manual or Timed Latching: Latch any of the 3 outputs
• Time Zone/Restricted Access Input: An external time clock or manual key switch can lock out selected user codes
• Non-Volatile Memory: Retains codes during power interruption
• Can be configured as an OEM Compatible Keypad Reader (26 Bit Wiegand, 8 Bit Word, Serial ASCII, BCD, ABA Track

Encoded Relay Module for PC Programming

The K1 Series provides 3 Open Collector outputs. In order for these outputs to trigger an electrified lock or other auxiliary device, they must be tied to either external relays or an optional Essex Encoded Relay Module (Part No. ERM-3). In addition to providing the features listed above, the Encoded Relay Module includes:

• 3 SPDT Relays (6 amp, 120VAC)
• 12 to 24 VAC or DC Input
• Ability to add optional Battery Backup System
• Free Essex EZ Key PC Programming Software

Essex EZ Key Software: PC Programming & Logging Software

• Serial Communications Interface: Ties the Encoded Relay Module to a PC for system programming/real time logging
• Use EZ Key to set the System configuration
• Add, modify or delete users through EZ Key User Maintenance
• Record real time logging (while running KeyLog on a PC connected to an ERM-3 Encoded Relay Module)

Additional Information

Additional Information

Manufacturer Essex Electronics
Model K1-26S-ERM3
Dimensions Thinline 2x6 (7 1/8” x 1 3/4” x 3/4”)
ERM-3 (5-1/2” x 7-1/2” x 2-1/2”)
Finish Stainless Steel
Operating Temperature - 40°F to + 160°F (- 40°C to + 70°C)
Programming Keypad and/or PC Programmable (Program from the Keypad or EZKey PC Programming Software included with optional Encoded Relay Module)
Output Mode K1: 3 Open Collector,1/4 A Max to ground
K1 w/ERM: 3 SPDT Relays rated at 6 amps (120VAC)
Number of Users Up to 500
Voltage Input 12 or 24 VAC/VDC
Warranty Limited Lifetime Warranty
Weight 4.0000


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