SEM2411
The power connector is a 2-pin DIN type connector. The provided AC adapter provides a 12 volt
power level to the SEM. The SEM can accept DC voltages ranging between 12VDC and 26VDC
if alternative power supplies are to be used.
Status Indicators
The PWR indicator on the front panel indicates that power is applied to the SEM. The SEM does
not have a power switch. Power is applied and removed to the SEM by connecting and
disconnecting the power connector.
The Ethernet LEDs include LINK, TXD and RXD. The LINK LED lights when a valid Ethernet
connection is made. The SEM is set up to use a straight through cable to connect to a PC. If a
straight through cable is used to connect the SEM to other devices through a hub, the SEM must
be connected to the uplink port on the hub. TXD and RXD are indicators of Ethernet data
activity. They indicate the transmission and reception of data over the Ethernet connection. Note
that these LEDs can be active even when the SEM is not communicating with another SEM.
The RF indicators include LINK and XCVR. On a slave SEM, the RF Link LED indicates the
SEM has established a connection with the master SEM. When a slave SEM is powered on, it
will take a few seconds for this LED to turn on. On a master SEM the RF Link LED is on as long
as any one Slave is linked. The XCVR LED on the SEM2411X when on indicates the remote
radio of the SEM2411X is operating properly.
2000- 2004 Cirronet
Inc
11
M-2411-0007 Rev B
Summary of Contents for SEM2411 /SEM2411 X
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