SPX-1300 · Reader Extender
RS-485 Extender
Single DoorConnects 1 reader and its door I/O over RS-485 (2-wire), up to 2 miles.
- Maximum distance
- 2 miles
- Single-door system
- 1 reader
- RS-485 connection
- 2-wire
- Wiegand & MagStripe compatible
- Central and remote units included
Extend access. Keep control.
Connect remote doors, gates, elevators, and parking access to your existing control panel.
- Control panel
- Central unitRS-485 · Up to 2 miles
- Remote unit
- Reader + door
How It Works

Connection
The Suprex Reader Extenders allow access control readers to be installed much farther from the controller, addressing common distance and wiring limitations without costly trenching or rewiring.

Suprex Installation
A "Suprex" is a pair of units.
1 unit connects to the reader,
1 unit connects to the panel.
Specifications
For single door applications. Not compatible with EXP-2000 Expansion Pairs. For applications connecting multiple doors over a Suprex twisted-pair RS-485 connection, use the SPX-7500.
- Applications
- Doors, Elevators, Parking
- Reader interfaces
- MagStripe, Wiegand
- Suprex communication
- RS-485 (Twisted Pair)
- Mounting
- Panel Mount, Surface Mount
- Power type
- 8–16 VDC
- Technology
- Long Range, Multi-Door, Supervised, Wired


EXP-2000
RPT-5651
SPX-7500
SPX-7420
SPX-5631