Axlink Port And Led (4-Pin Captive-Wire) - AMX NX-1200 Hardware Reference Manual

The IR/Serial connector wiring specifications are listed in the following table.
IR/SERIAL Connector Wiring
Specifications (per Port)
NX-3200/
4200 Port #
11
12
13
14
15
16
17
18

AxLink Port and LED (4-pin captive-wire)

The AxLink port allows the central controller to support AMX AxLink devices.
FIG. 20 displays the AXLINK ports for each NX-series controller.
NX-3200/4200
FIG. 20 AxLink Ports and LEDs
The (green) AxLink LED indicates AxLink data activity:



The AxLink port can be used to supply power to downstream AxLink-compatible devices as long as the maximum
current draw is less than 1.5 Amps on the NX-1200 and NX-2200, and 3 Amps on the NX-3200 and NX-4200. To isolate
the central controller from high in-rush current, AxLink devices, or potential power faults on the AxLink bus, it is
strongly recommended that you power external AxLink devices from an independent power supply.
Note: The AxLink port provides only limited power to connected AxLink devices. It is recommended to use an alternate
power source when connecting AxLink devices to the central controller.
Important: The NX-Series controllers CANNOT be powered via the AxLink port. The +12V pin on the AxLink
connectors are designed only for voltage output. Do NOT connect +12V from a power supply or the NXA-PDU to the
+12V pin on the AxLink connectors, or you may permanently damage the NX controller and/or the power supply.
The NX-3200 and NX-4200 both have two AxLink connections. These are two connection points for the same AxLink
bus. All AxLink devices connected to the controller must have unique AxLink device numbers even if they are attached
to different AxLink connection points on the controller.
While it is one AxLink bus, the power on these two AxLink connections is controlled independently.
Refer to the following table for the wiring length information used with the central controller:
Wiring Guidelines
Wire size
18 AWG
20 AWG
22 AWG
24 AWG
Hardware Reference Guide - NX-Series NetLinx Integrated Controllers
NX-2200 NX-1200
Port # Port #
11 11
12 12
13 N/A
14 N/A
N/A N/A
N/A N/A
N/A N/A
N/A N/A
Off - No power, or the controller is not functioning properly.
1 blink per second - Normal operation.
3 blinks per second - AxLink bus error. Check all AxLink bus connections.
Maximum wiring length
154.83 feet (47.19 meters)
98.30 feet (29.96 meters)
63.40 feet (19.32 meters)
38.68 feet (11.79 meters)
NX-2200
Wiring and Connections
NX-1200
28