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
  

12 Pad 3x4 w/Black Bezel

The 12 Pad 3x4 is a virtually indestructible, piezoelectric Keypad designed to interface with Essex Keyless Entry Access Control Systems or other access control/electronic equipment control applications. Utilizing Essex Billion Cycle Switch Technology, the 12 Pad 3x4 has no moving parts to wear out. Solid state piezoelectric technology ensures superior performance in even the most demanding environment. 

Keypad Dimensions 
5 1/8"H x 3 3/8"W x 7/16"D (13 x 8.5 x 1.2 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use, Harsh 

Keypad Bezel 
Stainless Steel (316L) investment casting with durable black powdercoat finish 

Keypad Mounting 
Single Gang Switchbox 
Flush Mount 
Surface Mount

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

12 Pad 3x4 w/Brass Finished Bezel

The 12 Pad 3x4 is a virtually indestructible, piezoelectric Keypad designed to interface with Essex Keyless Entry Access Control Systems or other access control/electronic equipment control applications. Utilizing Essex Billion Cycle Switch Technology, the 12 Pad 3x4 has no moving parts to wear out. Solid state piezoelectric technology ensures superior performance in even the most demanding environment. 

Keypad Dimensions 
5 1/8"H x 3 3/8"W x 7/16"D (13 x 8.5 x 1.2 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use, Harsh 

Keypad Bezel 
Bezel is brass in appearance. Actual bezel is Stainless Steel (316L investment casting) with an advanced, PVD wear resistant coating. 

Keypad Mounting 
Single Gang Switchbox 
Flush Mount 
Surface Mount

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

Thinline 2x6 w/Stainless Steel Overlay

The Thinline 2x6 is a weatherproof, piezoelectric Keypad specifically designed for mullion mount applications. The Thinline 2x6 features a unique graphics overlay which can provide a Stainless Steel, Brass, Black Illuminated or Braille finish. 

Keypad Dimensions 
7 1/8"H x 1 3/4"W x 3/4"D (18.1 x 4.4 x 1.8 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

12 Pad 3x4 w/Stainless Steel Bezel

The 12 Pad 3x4 is a virtually indestructible, piezoelectric Keypad designed to interface with Essex Keyless Entry Access Control Systems or other access control/electronic equipment control applications. Utilizing Essex Billion Cycle Switch Technology, the 12 Pad 3x4 has no moving parts to wear out. Solid state piezoelectric technology ensures superior performance in even the most demanding environment. 

Keypad Dimensions 
5 1/8"H x 3 3/8"W x 7/16"D (13 x 8.5 x 1.2 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use, Harsh 

Keypad Bezel 
Stainless Steel (316L) investment casting 

Keypad Mounting 
Single Gang Switchbox 
Flush Mount 
Surface Mount

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

12 Pad 3x4 without Bezel

The 12 Pad 3x4 is a virtually indestructible, piezoelectric Keypad reader designed to interface with a variety of electronic equipment applications. Utilizing Essex Billion Cycle Switch Technology, the 12 Pad 3x4 has no moving parts to wear out. Solid state piezoelectric technology ensures superior performance in even the most demanding environment. 

Keypad Dimensions 
3" H x 2 1/2" W x 7/16" D (7.6 x 6.35 x 1.2 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use, Harsh

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

Thinline 2x6 w/Black Illuminated Overlay

The Thinline 2x6 is a weatherproof, piezoelectric Keypad specifically designed for mullion mount applications. The Thinline 2x6 features a unique graphics overlay which can provide a Stainless Steel, Brass, Black Illuminated or Braille finish. 

Keypad Dimensions 
7 1/8"H x 1 3/4"W x 3/4"D (18.1 x 4.4 x 1.8 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

Thinline 2x6 w/Braille Overlay

The Thinline 2x6 is a weatherproof, piezoelectric Keypad specifically designed for mullion mount applications. The Thinline 2x6 features a unique graphics overlay which can provide a Stainless Steel, Brass, Black Illuminated or Braille finish. 

Keypad Dimensions 
7 1/8"H x 1 3/4"W x 3/4"D (18.1 x 4.4 x 1.8 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

Thinline 2x6 w/Brass Overlay

The Thinline 2x6 is a weatherproof, piezoelectric Keypad specifically designed for mullion mount applications. The Thinline 2x6 features a unique graphics overlay which can provide a Stainless Steel, Brass, Black Illuminated or Braille finish. 

Keypad Dimensions 
7 1/8"H x 1 3/4"W x 3/4"D (18.1 x 4.4 x 1.8 cm) 

Keypad Operating Environment 
100% Relative Humidity 
-40°C to +70°C (-40°F to +160°F) 
Indoor, Outdoor, High Use

• Field Selectable Keypad Configuration Configure in the field as any one of the following: 26 Bit Wiegand Reader 8 Bit Word Reader ABA Track II Reader BCD Reader Serial ASCII Reader Essex 36 Bit Reader 500 Code Self Contained Access Control System

• Vandal Resistant Design Fully encapsulated Keypad with no moving parts

• Mounting Methods Directly to a U.S. single gang switchbox or surface mount

• Programmable Site Code (26 Bit Wiegand Reader) Program a site code (000 to 255) during installation

• Selectable Baud Rate/Parity (Serial ASCII Reader) Baud: 300, 600, 1200, 2400, 4800, 9600, 19200 or 38400 Parity: None, Odd or Even

• 500 Codes 1 Master Code, 499 User Codes (3 to 8 digits in length)

• Easily Programmable at the Keypad Add, Modify or Delete Codes from the Keypad

• 3 Programmable Open Collector Outputs 1 Main Output – External Relay Unlock or Encoded Relay Unlock (requires Encoded Relay Module: Part No. ERM-3) 2 Auxiliary Outputs – CCTV, Internal Alarm, 2nd/3rd Door (External Relays may be required)

• Tamper Alarm Multiple incorrect entries trigger Tamper Alarm and lock out system for 30 seconds

• Remote Bypass (REX) Activates Relay for Programmed Output Time

• Anti-Tailgating Helps prevent unauthorized access

• Programmable Output Time 1 to 99 seconds

• Manual or Timed Latching Manually or automatically latch any output

• 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

• Power Requirements Field Selectable 5VDC or 12 to 24VDC

• Current Draw < 25mA

• Outputs 3 Open Collector, ¼A Max to ground

• Keypad Switch Life > 1 Billion Cycles

• Keypad Operating Environment - 40°C to + 70°C (- 40°F to + 160°F) 100% Relative Humidity

• Dimensions H: 5." x W: 3." x D: 7/16" (13 x 8.6 x 1.1 cm)

• Weight 16 oz. (454 gm)

• Material 316L Stainless Steel

Specification

Certification:

UL Listed for USA and Canada:

– Hazardous locations

Class I, Div 2, groups A, B, C & D. Class 1, Zone 1

Class II, Div 2, groups F & G, AExd IIC T4/T5.

UL listing No. E187894.

– Ordinary locations: Visual Signal Device.

UL listing No. S8128

CENELEC EN50014 & EN50018.

ATEX Cert. No. Baseefa 04ATEX0009X.

Material:

Body:

Glass reinforced polyester.

Lens:

Glass.

Backstrap:

stainless steel 316.

Wire Guard (optional):

Stainless steel wire.

Cast Guard (optional):

Aluminium LM25M.

Finish:

Natural black or epoxy painted to customer specification.

Voltage:

24, 48V d.c.

110, 120, 230, 240, 254V a.c.

Tube Energy:

15 Joules.

Tube Life:

>1 x 106 flashes.

Flash Rate:

60, 80, 120 fpm. Certified

Temperature:

-67°F to +104°F (T6) -55°C to +40°C (T6)

-67°F to +131°F (T5) -55°C to +55°C (T5)

Weight: Pipe mount:

5.75lb./2.6kg; Direct mount: 6.5lb./3.0kg.

Ingress Protection:

NEMA 4x &6, IP66 & IP67.

Entries:

Supplied as 2 x ¾" NPT (direct mount) or ¾" (pipe mount) as standard.

Other options available:

Up to 3 x ½" NPT or 3 x ¾" NPT (direct mount);

½" NPT (pipe mount)

Terminals:

Direct mount: 12 x 14AWG

Pipe mount:

8 x 14AWG

Relay Initiate:

Available on all units – suitable for 24V d.c. supplies only.

Labels:

Tag/Duty label option.