1  Unpacking 
Open the carton and unpack the items. Your package 
should include: 
▪  One EX83304 switch 
▪  One console cable 
If any items are missing or damaged, notify your 
EtherWAN representative. If possible, save the carton 
and packing material in case you need to ship or store 
the switch in the future.  
2  Equipment Needed 
▪  Shielded twisted pair cables and corresponding 
shielded RJ45 connectors  
▪  Appropriate SFP modules for SFP ports 
▪  Personal computer with a DB9 straight cable (if 
switch is to be managed through console port) 
3  Select a Location 
▪  Installations: DIN-Rail mount, wall (in an enclosure 
or industrial panel) 
▪  Identify a power source within 6 feet (1.8 meters). 
▪  Choose a dry area with ambient temperature 
between -40 and 75ºC (-40 and 167ºF). 
▪  Be sure there is adequate airflow. 
4   Connect to the Data Ports 
Depending on the model, your switch can have the 
following ports: 
▪  12 or 8 10/100BASE-TX ports 
▪  2 or 4 Gigabit SFP slots  
 
 
10/100BASE-TX Ports 
These ports come in 10/100Base-TX interfaces. They 
can connect to devices such as an IP surveillance 
camera or a Voice Over Internet Protocol (VoIP) 
phone.   
1 Gbps SFP Ports 
Your switch model has four 1 Gbps SFP slots. SFP 
transceivers can be installed directly into ports 13 – 
16. Ensure that the same type of transceiver is used at 
both ends of the link and that the correct type of fiber 
cable is used. 
 
     
 
 
 
 
5  Apply Power 
The switch has two pairs of power inputs:  
A 12-48 VDC terminal block 
The power dissipation under full load is as follows: 
12V/1.44A    24V/0.67A    48V/0.33A 
Redundant power supply is supported. However, only 
one power input is required to operate the switch. 
Note: Use qualified power supply by SELV or double 
insulation of UL60950 or UL61010-1 or UL61010-2-201 
standards. 
Terminal Block 
The switch provides two power inputs on a 12-48VDC 
terminal block. Only one power input is required to 
operate the switch. The terminal block has 5 terminal 
posts.