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ECU G4

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The ECU G4 provides the centralized interface that ties the door, access control entry, and input sensors to the local access controller (any NetGuardian 832, 864, 420, 216F with an available RS485 port).

Key Features

  • Supports dual Proxy Readers or dual Keypads, or a combination of both (inside and outside of a building).

The Entry Control Unit (ECU) G4 reduces and distributes the control and interface logic of the NetGuardian.

Any access code that is entered on the keypad or card reader is accepted by the ECU and passed on to the NetGuardian for validation. If the access code is valid, the ECU accepts a command from the NetGuardian to energize the local relay to open the door. In the event of communication failure with the NetGuardian, the ECU will verify entered access codes against a backup access profile previously configured in and downloaded from the NetGuardian.

The ECU G4 supports dual Proxy Readers or Keypads both inside and outside of a building.

Some of the features supported by the ECU G4:

  • Dual Keypad Mode: In this mode, you can mount one Proxy Card Reader and One Keypad both inside your building and outside. This is used for additional versatility for clocking employees in and out for the day.
  • Dual Proxy Mode: Used in this mode, you will mount one Proxy Card Reader inside your building and one outside. This is used for clocking employees in and out for the day.
  • Magnetic Door Mode: This mode may be used with doors equipped with magnetic door locks. In this mode, the door will remain magnetically locked until unlocked via proxy card scan, Request-to-Exit button, or motion sensor.
  • Lock When Closed Mode: This mode causes the door to lock a few seconds after it has been detected closed, and can be usefully combined with "Magnetic Door Mode" to ensure building security before and after the door has been unlocked. In this mode, if the door does not open after it has been unlocked, It will lock again after 2-3 seconds.
  • Emergency Mode: This mode causes all doors to unlock in the event that a user-defined gas and fire alarm occurs. This mode defaults Off but can be activated through the NetGuardian G5 Web browser interface. Both alarms have to be active in order for NetGuardian to issue the unlock command, and the gas alarm must clear before the doors can be re-locked when in this mode.
  • Double Swipe Mode: Allows users to locally enable propped door mode by swiping their access card a second time during the door unlock period.

Form Factor

  • Height: 8.56"
  • Width: 7.5"
  • Depth: 1.72"
  • Mounting:
  • Weight: 0 lbs

Core Features

  • External Speaker
  • Fuse: 3/4 Amp GMT
  • LED status indicators
  • Mounting: Wall mount
  • Power Supply: -48Vdc

Operating Conditions

  • Humidity: 0-95% NC
  • Temperature: 32 to 140F (0 to 60C)

Hardware/Installation Manual

No additional software required.

Use the built-in web interface for configuration. Monitor via web interface, your SNMP manager, or a T/Mon master station.