• Economical Control of up to 8 doors
  • Hands Free operation (up to 3.0 metre with external aerial)
  • 8 x External Aerials from 1 controller
  • Tag Battery Low Indication
  • Secure Data Exchange
  • Reverse Polarity Protection
  • Encrypted Data Communications
  • 1:100 Million Error Rate
  • Wiegand or Clock & Data & Serial output
  • CE, DTI & FCC Approved.


The CR1-MPX Multiplexer has many uses. It can be used where a number of doors are in close proximity to one another each to be scanned sequentially. The reader interrogates each aerial loop in turn for tags within range. The simplest scan pattern is to look at all 8 aerial loops, but other search patterns are possible, for instance giving more time to one aerial loop. Consult Identec Ltd. for further details.

As the aerial loops are time multiplexed, with each loop only active for a short period of the time available, the effect is to reduce the reading speed. A multiplexed reader is always slower than a CR1. Only the loop being addressed by the multiplexer is effectively connected to the reader, the others are off or isolated. The MPX8 can also be configured for use as a directional sensing unit (of all types), where two output channels (Wiegand or Clock/Data, and RS232) are provided. Where more outputs are needed a BBmux solution must be used.

All CR1 readers provide Wiegand or Clock & Data, as well as RS232 output. Advanced features include local alarm outputs, print option and an optional counter display (See IDN1, EDN1 for further information.).


Specification Details
Power requirements 12-18 Volts DC @ 1A(Max)
Dimensions 500 x 500 x 50mm
Weight 8.5kg
Temperature range -20 to +60°C (non condensing)
Colour/Housing Charcoal Grey Metal Case
LED function RED internally/externally controlled
AMBER internally/externally controlled
GREEN internally/externally controlled
Noise indication, Data Sent Indication
Output Formats Wiegand or Clock & Data & RS232
Terminations 2.5mm removable connectors


The product is suitable for numerous applications, they include but are not limited to:

  • Hands Free Access Control
  • Wide Entrance Monitoring
  • Close Proximity Doors (vertically and horizontally)
  • Personnel Identification.

Ordering Information

Ordered as CR1-MPX (CR1A-MPX - USA system).

Technical Details

Download the 1st manual for CR1-MPX.

Download the datasheet for CR1-MPX.