Unmanaged Switch User Manual
Page 4 of 13
Last Revised: 11-Jul-06
Amphenol
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Section 2
LED Indicators
Overview
These switches have communication LEDs for each port and a power LED. Refer to the
pictures below for the typical location of these LEDs. The exact location of these LEDs may
vary between the different models.
RJS-5ES-1
(5 port – all RJ45)
RJS-5ES-2 or -3
( 5 ports including 1 fiber)
RJS-9ES-1
(9 ports – all RJ45)
Power LED
This LED will be on solid when proper power has been applied to the unit.
ACT / LNK
LEDs
The activity (ACT) and link (LNK) indication is combined into one LED (labeled
“ACT/LNK” or “A”) on these switches. There is one of these LEDs per port.
OFF
– This would indicate that there is not a proper Ethernet connection (Link) between the
port and another Ethernet device. Make sure the proper cable type is in use and that it has
been plugged securely into the ports at both ends. See section 5 for proper Ethernet cabling.
ON Solid (not flashing)
– This would indicate that there is a proper Ethernet connection
(Link) between the port and another Ethernet device, but no communications activity is
detected.
Flashing
– This would indicate that there is a proper Ethernet connection (Link) between
the port and another Ethernet device, and that there is communications activity.
10 / 100
LEDs
This LED indicates what speed of communications is detected on the port. There is one of
these LEDs per RJ45 port and it is labeled “S”. (The fiber optic port does not have one of
these LEDs because its speed is fixed at 100 Mbps.) (Mbps = Megabits per Second)
OFF
– A 10 Mbps (10BaseT) connection is detected.
ON
– A 100 Mbps (100BaseTx) connection is detected.
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