instruction manual AXlink Wiring Considerations A x c e s s C e n t ra l C o n t r o l l e r s
AMX Limited Warranty and Disclaimer AMX Corporation warrants its products to be free of defects in material and workmanship under normal use for three (3) years from the date of purchase from AMX Corporation, with the following exceptions: • Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch overlay components that are warranted for a period of one (1) year.
Table of Contents Table of Contents AXlink Wiring Considerations .................................................................................1 The AXlink Protocol........................................................................................................... 1 AXlink Electrical and Timing Characteristics ..................................................................... 2 Cable Types and Maximum Distances..............................................................................
Table of Contents ii AXlink Wiring Considerations
AXlink Wiring Considerations AXlink Wiring Considerations This document describes AXlink, wiring topologies, electrical timing and characteristics, compatible cable types, wiring distance calculations, and wiring diagram examples. AXlink is a proprietary communication protocol designed by AMX to control up to 255 devices with a Central Controller using common copper conductors.
AXlink Wiring Considerations AXlink Electrical and Timing Characteristics FIG. 2 shows the electrical and timing characteristics of AXlink. The table below describes each characteristic. FIG. 2 AXlink electrical and timing characteristics Electrical timing characteristics Parameter Description Min. Typical Max. Units Trise Rise time for AXM and AXP 0 20.0 µS Tfall Fall time for AXM and AXP 0 20.0 µS 5.1 V Vhigh AXM and AXP voltage with respect to AXlink ground 4.
AXlink Wiring Considerations Power Distribution The following table lists the maximum cable lengths by electrical current and wire gauges (AWG). These distances are based on a min. of 13.5 volts available at the Central Controller's power supply.
AXlink Wiring Considerations Liberty Cable & Wire Inc. cables FIG. 3 shows a wiring diagram for AXlink cables manufactured by Liberty Cable & Wire Inc. The PWR connection shown in the diagram is only used when supplying 12 VDC via the AXlink cable. The PWR connection should not be used when a local power supply is connected directly to the external AXlink device. FIG.
AXlink Wiring Considerations FIG. 5 Category 5 wiring diagram (with PWR connection) If a local power supply is used, the free GND wire of the GND pair should be connected as shown in FIG. 6. FIG. 6 Category 5 wiring diagram (without PWR connection) Using Ground Shielding Under normal circumstances ground shielding should not be necessary. Only use ground shielding when experiencing noise in the line. The shield connection should only be tied on one end - the Master side.
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