E-ACK-V2: ENVIROMUX access control digital keypad 

Two relay outputs controlled by two groups of independent user codes:
• Output 1: 5 Amp relay for door strike
• Output 2: 1 Amp relay for other control applications

Features
• Operate with fail-safe or fail-secure locking device
• Open collector outputs for Duress, Key Active and Inter-lock functions
• LED indicators for operation status and system status
• Door open announcer
• Non-volatile memory in case of power failure
• Door automatically re-locks after valid access to prevent "tailgate entry"
• Compatible with and powered by ENVIROMUX 2D/5D/16D

User Codes
• Output 1: 100 user codes
• Output 2: 10 user codes