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Installation
4
BNC Ports
BNC Connections, 10BASE2.
A thin Ethernet coaxial cable may be
plugged directly into the BNC port located on the back panel. See Figure 4.
Next to each of these ports is the 50
Ω
termination switch. If the coax is
plugged directly without a BNC-T or external terminator then the
terminator switch for the respective port must be enabled by selecting the
ON position. Each BNC is switched individually.
BNC-T Connections.
The AT-3004SL and AT-3008SL BNC ports have
their own switchable 50
Ω
termination located on the back panel next to each
BNC port. See Figure 5. If installing with BNC-T connectors in the center of
a segment then the ports internal termination must be disabled (OFF). The
segments termination should then be placed at each end of that cable
segment.
If there is no BNC connection on a BNC port then the internal 50
Ω
termination should be enabled (50
Ω
switch to ON position) even if the port is
unused or Off Line. This will ensure a Radio Frequency Interface (RFI) noise
tolerant configuration.
Ventilation
The CentreCOM Multiport Repeater has a ventilation fan and ventilation
holes on the sides of the chassis. Do not restrict the flow of air through these
openings. Doing so may cause over-heating and possible component damage.
Figure 4:
BNC Connector
Figure 5:
BNC-T Connector
Note