AMX NXB-KNX manual Installation, Wiring and Connections

Installation

Installation

Wiring and Connections

To avoid any damage to the electronic component, installation must be performed in an ESD safe environment.

Do not connect power to the NXB-KNX until the wiring is complete.

The NXB-KNX is installed between the NetLinx Master and the KNX control bus, and passes NetLinx control commands to the KNX control bus via 2-wire twisted pair cabling, as indicated in FIG. 1:

NetLinx Master NXB-KNX

PoE injector

KNX

Control

Bus

Ethernet 10/100 2-wire twisted pair

FIG. 1 NXB-KNX installation

After you have completed the installation, consult the Configuration section on page 5.

Ethernet 10/100 Base-T RJ-45 Wiring Configuration

The table below describes the pinouts, signals, and pairing for the Ethernet 10/100 Base-T connector and cable.

Ethernet Pinouts and Signals

Pin	Signals	Connections		Pairing		Color
1	TX +	1 ---------	1	1 ---------	2	White-Orange
2	TX -	2 ---------	2			Orange
3	RX +	3 ---------	3	3 ---------	6	White-Green
4	no connection	4 ---------	4			Blue
5	no connection	5 ---------	5			White-Blue
6	RX -	6 ---------	6			Green
7	no connection	7 ---------	7			White-Brown
8	no connection	8 ---------	8			Brown

FIG. 2 diagrams the RJ-45 pinouts and signals for the Ethernet RJ-45 connector and cable.

FIG. 2 Straight-Through Wiring
NXB-KNX NetLinx KNX Interface	3