Nitek ER8400U - Manual (Page 3)

Parts of the ER8400U (Front Panel)
Installation Considerations
Wire and Cable Recommendations: The ER8400U is designed for use with up to 8 UTP CAT5e/CAT6 24AWG
(American Wire Gauge) cables. The quality and condition of which must be considered serviceable Category type
cable. It must be free from damage such as cuts, breaks or cracks to the outer covering and insulated shielding
which may compromise the signal conductivity of the cables.
For more specific information regarding wire types, gauges, and proper installation techniques please call Tech
Support at (800) 528-4343.
Ethernet & PoE: The ER8400U is designed to communicate at up to 100Mbps per network port for Ethernet data
and transmit up to 1 Gigabit of aggregate LAN traffic. Additionally, the ER8400U provides per port power sourcing
PoE+ voltage to operate the transmitters (ET1500U), and up to 8 attached network devices. As a power sourcing
Layer 2 switch the ER8400 will supporting 15.4W (802.3af) to 25.5W (802.3at) powering schemes at a maximum
distance of 2000ft or 600m. Refer the PoE distance chart for specific power capabilities. Before installing this solu-
tion be sure that the cable involved does not exceed the recommended maximum lengths. If the cable length is in-
determinist at the time of installation, we recommend the use of a time domain reflectometer (TDR) which can
measure impedance characteristics, splices, and determine the cable length. The TDR does this through the use of
short rise time pulses.
LAN Port
Green = 1Gb
Yellow Yellow Yellow = 100Mb
Orange = 10Mb
RJ45 Network Ports
PoE OUT
Network Connection
Green = 100Mb
Orange = 10Mb
LED Display Panel
The LED Display Panel shows the same
information as the individual jacks does but
in a easier to read location. It also shows
Power indicator and a Trouble LED.
Trouble LED
Solid if there is a temperature problem
Flashing Slow is a network loop problem