Installation
Wiring Guidelines
The interface requires a 12 VDC power to operate properly. The interface uses a PSN2.8 power supply. The Central Controller supplies power via the AXlink cable or external 12 VDC power supply. The maximum wiring distance between the Central Controller and interface is determined by power consumption, supplied voltage, and the wire gauge used for the cable.
Cable Types and Maximum Distances
Compatible AXlink cable types include those manufactured by Liberty Wire & Cable Inc., and cables that comply with Category 5 or Belden 8102 standards. To determine the maximum distances, refer toPower Distribution section on page 12.
Pre-manufactured AXlink cable
The Liberty Wire & Cable Inc. manufactures AXlink cable that contains two pairs of conductors. The data pairs comprise 22 AWG stranded shielded twisted pair (STP) with a single drain wire, and a 12 VDC power pair of 18 AWG stranded wire. The nominal capacitance between the data conductors is 12.5 pF/ft.
Using the Liberty Wire & Cable Inc. AXlink cable, the maximum overall cable distance between the Central Controller and all external devices for data communication is 3,000 feet with no remote power.
You can contact Liberty Wire & Cable Inc. at 4630 Forge Road, Suite A, Colorado Springs, CO 80907 or by calling (800)
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.
Maximum AXlink current and cable lengths by wire AWG
Maximum Current | Cable length by wire AWG |
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Milliampere (mA) | 18 AWG | 20 AWG | 22 AWG | 24 AWG |
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50 | 2,347 | 1,485 | 926 | 584 |
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100 | 1,174 | 743 | 463 | 292 |
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250 | 469 | 297 | 185 | 117 |
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500 | 235 | 149 | 93 | 58 |
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1,000 | 117 | 74 | 46 | 29 |
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Calculating AXlink wiring distances
All AXlink devices require a minimum of 12 VDC power to operate properly. The power can be supplied by the Central Controller's AXlink cable (remote power configuration) or with an optional 12 VDC power supply (local power configuration). The maximum wiring distance between the power supply and AXlink device is determined by power consumption, supplied voltage, and the wire gauge used for the cable. Use the
Most power supplies are factory set to 13.5 VDC. Never use a power supply that exceeds 18 VDC for remote or local power configurations. Contact AMX for a complete list of products and their power consumption ratings.
12 | Anterus RFID Solution |