AMX RF Receiver AXR-RF - Manual (Page 8)

Installation
4 AXR-RF RF Receiver
Wiring Guidelines
The AXR-RF requires regulated ±12 VDC power to operate properly. The Central Controller
supplies power via the AXlink cable. The maximum wiring distance between the Central Controller
and AXR-RF is determined by power consumption, supplied voltage, and the wire gauge used for
the cable. The table below lists wire sizes and maximum lengths allowable between the AXR-RF
and Central Controller. The maximum wiring lengths for using AXlink power are based on a
minimum of ±13.5 VDC (no load voltage), available at the Central Controller's power supply.
If you install the AXR-RF farther away from the Central Controller than recommended in the
Wiring Specifications table, an auxiliary ±12 VDC power supply is required for operation.
Wiring the AXR-RF
The AXR-RF uses a rear 4-pin AXlink connector for power and data. Power can be supplied by
Central Controller's AXlink cable, or with an optional auxiliary ±12 VDC power supply.
Using the AXlink 4-pin connector for data and power
Connect the Central Controller's AXlink connector to the AXlink connector (male) on the rear
panel of the AXR-RF for data and ±12 VDC power.
Using the AXlink 4-pin connector with an external ±12 VDC power supply
Use an auxiliary ±12 VDC power supply when the distance between the Central Controller and
AXR-RF exceeds the limits described in the Wiring Specifications table. To use an external power
supply, connect the Central Controller's AXlink connector to the AXlink connector on the rear of
the AXR-RF, as shown in FIG. 2.
Wiring Specifications
Wire size Maximum wiring length
18 AWG 1805.7 feet (550.37 m)
20 AWG 1142.4 feet (348.20 m)
22 AWG 712.2 feet (217.07 m)
24 AWG 448.9 feet (136.82 m)
FIG. 2 Auxiliary power supply connection
PWR (+)
GND (-)
+12 VDC power supply (from PSN6.5)
AXR-RF Central Controller
Do not connect the wire from the PWR (+) terminal on the Central Controller to the
PWR (+) terminal on the AXR-RF when you connect an external power supply.
Do not connect power to the AXR-RF until the wiring is complete.