Nexus 4 - Hardware Description
Nexus 4
The Nexus 4 is a rugged and flexible network appliance that is designed for use in many diverse applications. It can be mounted horizontally or vertically (wall-mount) and the orientation will not affect its function. For best performance, the Nexus 4 should be mounted so that ambient or flowing air can pass across the heatsink fins. As there are no fans, the Nexus 4 does not have an active cooling system and convection cooling is the primary means of removing heat from the device.
The Nexus 4 is expandable in function through the use of USB dongles and adapters. Please consult the applicable Help Guides or contact Clarus Networks for expansion options.
Detailed Port Descriptions

Nexus 4 Back Panel

Nexus 4 Front Panel
Port Specification
Port Label | Specification | Function |
---|---|---|
LAN | RJ45 : 1000/100/10 Mbps. | DHCP (default) LAN, assignable to WAN input |
WAN 3 / 2 / 1 | RJ45 : 1000/100/10 Mbps. | WAN input, assignable to LAN |
DC 12V | 5.5 x 2.5mm : +12 VDC | Power |
HDMI | HDMI | Terminal access / troubleshooting |
UWAN1 | USB Type A : USB 3.0 | User WAN port using cellular modem or USB to RJ45 ethernet adapter |
UWAN2 | USB Type A : USB 3.0 | User WAN port for USB to RJ45 ethernet adapter |
Power Specification
Power | +12VDC (20W Max); 100-240 VAC, 50-60 Hz (AC/DC Power Supply Included) |
Power Button and Power States
The Nexus 4 has 3 power states: On, Off and Sleep. The Sleep state is not widely used.
LED Indicators
The Nexus 4 has 2 LEDs to indicate the power state and function of the device.
LED | State | Meaning |
Power LED | Green | Powered on |
Off | Powered off | |
HDD/SSD LED | Red / illuminated | Disk Usage |
Off | Powered off |
Clarus Networks recommends always using a dedicated Uninterruptable Power Supply (UPS) Battery Backup system for any Nexus 4 installation that may see sudden, momentary power resets.
Mechanical
Mounting Features
Desktop, VESA Bracket, Optional 1RU Rack Mount
Weight
1.1 lbs, .50 Kg
Shipping Weight
2.8 lbs, 1.2 Kg
Environmental
Operating temperature range
-10°C to +50°C
Relative humidity
5% – 95% non-condensing