// Security Surveillance Connectors

Security Keypad RS-485

Digital security keypads connect to alarm panels via RS-485 4-wire or 2-wire buses for PIN code entry remote arming and disarming and status display using proprietary panel protocols from DSC Honeywell or Bosch.

// Specifications

Standard

Manufacturer proprietary RS-485

Wires

VCC GND RS485+ RS485-

Voltage

12V DC from panel

Protocol

DSC Honeywell or Bosch proprietary

Use Case

Burglar alarm arming disarming status display

Distance

Up to 300m from panel

// generating diagram...

// Pin Reference Table

Pin	Name	Function	Type
1	VCC	12V supply from panel	PWR
2	GND	Ground	GND
3	DATA+	RS-485 data positive	BUS
4	DATA-	RS-485 data negative	BUS