12 User’s Manual
2.3.1 Rugged 10/100 Network Switch –
Provides a 4 port network switch for connecting multiple DAQlink III units. The switch
is designed to power through the “Rugged Network cable” or direct from a battery. One Switch
is required for every 100 meters of cable; Example a 48 channel system using two 24 channel
DAQlink III units with 10 meter geophone spacing is setup. There is 240 meters between the two
DAQlink III units. This setup requires 4 network switches and quantity =3 sections of 80
meter rugged network cable. One Network switch is at Each DAQlink III unit connected to
battery power. Two more network switch units are used to connect the 80 meter cables between
the boxes (These interconnection switches are powered through the cable and do not require an
additional battery connection)
Unit is powered by +12 volt through the POE connection on the Ethernet patch cable.
2.3.2 Rugged Network Cable –
Rugged Ethernet cable with water resistance mating connectors. This switch is
designed for use with the Rugged 10/100 network Switch. Standard length is 90 meters.
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