Introduction
9
NI-2100, NI-3100, NI-4100 Hardware Reference Guide
NI-4100
The NI-4100 (FG2105-06) provides versatility with the ability to integrate the largest number of devices in the 
NI Series of Master Controllers, including projectors, lighting, VCR and DVD players, thermostats and other 
electronic equipment. In these technology-driven environments, this solution allows for the future addition of 
more devices and control capabilities. With a perfect mix of compatible formats, the NI-4100 offers flexibility 
and customization for businesses experiencing rapid growth and for homes that demand seamless integration 
of technology and design. 
The NI-4100 provides higher performance with a faster processor, up to 256 MB of onboard RAM and Duet-
compatibility. 
The NI-4100’s on-board Master also provides the ability to update installed control card firmware.
FIG. 3  NI-4100
LINK/ACT LED
STATUS LED
INPUT LED
OUTPUT LED RS-232/422/485 Status LEDs
RELAY Status LEDs
IR/SERIAL Status LEDs
I/O Status LEDs
front
rear
RS-232/422/485 (Ports 1-7)
ICSNet/ICSHub Ports (provided by optional
Relays (Port 8)
I/O (Port 17)
IR/Serial (Ports 9-16)
PROGRAM Port
CONFIGURATION DIP Switch
ID Pushbutton
ETHERNET
10/100 Port
AxLink Port
12 VDC PWR Connector
Slot 1-4 connectors
ICSNet daughter card)
Cardframe
DIP Switch
Slot 1-4 connectors
Verify you are using the latest NI firmware for the on-board Master. Verify you are 
using the latest version of NetLinx Studio (available for download from 
www.amx.com).