Applies to: NHP-P100 (1 Door Controller), NHP-P200 (2 Door Controller), OnCAFE-compatible configurations

Summary

This article describes the process for wiring peripherals to the NHP-P100 and NHP-P200 controllers. It includes detailed diagrams and clear descriptions for common access control devices including readers, locks, REX sensors, and door contacts.

Each NHP Controller supports the following components:

• Card Reader (Wiegand or OSDP)
• Electric Lock (Fail-Safe or Fail-Secure)
• REX Sensor (Request to Exit)
• Door Contact (DPS)
• Optional: Fire Alarm Interface (FAI), Auxiliary Input (AUX IN)

Wiring Diagrams

When wiring entities:

• Match cable type to the distance and voltage drop requirements.
   
• • Confirm wire colors or terminal block pinout against device manuals.
   

• Label cables and use strain reliefs to prevent troubleshooting issues later.

  

Configuring the Switch

Ensure the switch is set correctly to match your lock’s voltage requirements.

Wiring the Card Reader

The card reader identifies users via physical (Card/Fob), pin code, or mobile credentials (NFC/BLE) and transmits credentials data to the controller/panel.

1. Use shielded 22/6 cable for typical Wiegand wiring.
2. Wire the card reader (Wiegand or OSDP) as follows.

•  
  • Red > RD 12V+ (Power to Reader)
  • Black > RD GND (Power Ground)
  • Green > DO(A) (Wiegand D0 or RS-485 A)
  • White > D1(B) (Wiegand D1 or RS-485 B)
  • Brown > LED (Optional - Control Reader LED)
  • Orange > BUZ (Optional - Control Reader Buzzer)

Configuring Output Voltage

Each NHP controller features a 3-position switch located above the output terminal block. This switch configures the lock output voltage:

• Center: Dry Contact (Relay Only)
• Up: 24VDC Output
• Down: 12VDC Output

Wiring the Electric Lock (Fail-Safe or Fail-Secure)

The electric lock secures or releases the door. To wire the electric lock:

1. Determine the lock type: Fail-Safe (NC) or Fail-Secure (NO).
    
2. Determine which wire is the Positive Lock Conductor, and whether the lock to be connected is NC (for Fail-Safe) or NO (for Fail-Secure).
   
    
3. Determine the negative ground wire. 
   
    
4. Use 18/2 or 18/4 cable for power and control wiring.
    
5. Set the 3-position switch to match lock voltage: Center = Dry, Up = 24VDC, Down = 12VDC.

Wiring the REX Sensor (Request to Exit)

The REX Sensor detects motion or proximity to request exit.

1. Wire the REX sensor as follows:

•  
  • Red > 12V Out (REX Power +)
  • Black > GND (REX Power -)
  • Green > REX + (Dry Contact NO Output)
  • White > REX - (Dry Contact Return)

2. Use 22/4 cable.

3. Ensure the REX has a dry contact that closes on motion.

Wiring the Door Contact (DPS)

The door contact monitors the door status (open/closed). 

1. Wire the door contact as follows:
   
   • White > DPS + (Input +)
   • Black > DPS - (Input -)
    
2. Use a minimum of 22/2 or 22/4 cable.
    
3. Set up as follows: 
   
   Auxiliary Inputs
   
   
   
   AUX IN
   • +: Auxiliary Sensor Input
   • -: Ground
   
   FAI (Fire Alarm Interface)
   • +: Alarm Activation Input
   • COM: Common Terminal
   • -: Reset Input
    
4. Properly power the NHP P Series Controller.
   
   Power Input (DC IN)
   
   The NHP Controller can be powered by one of the following methods:
   • PoE++ (Power over Ethernet – IEEE 802.3bt)
   • PoE++ (IEEE 802.3bt) is recommended for optimal performance and sufficient current to support locks, readers, and onboard electronics.
   • Power is supplied through the network port (RJ-45).
   
   Direct 12VDC or 24VDC Input
   
   If not using PoE++, the controller can be powered using a dedicated DC power supply.
   
   Connect to DC IN terminals:
   + > 12VDC or 24VDC Input 
   – > Ground
    

5. Confirm that your power supply matches the controller’s rated voltage.

   NOTE: Always verify that your power source provides enough current for all 
   connected peripherals (locks, readers, sensors, etc.).
   The NHP Controller supports redundant power inputs—either PoE++ or DC IN 
   can act as a backup in case one power source fails.