
Getting Started
26 RTU-310/310G
Connecting the Test Interface Ports
2. Carefully connect optical fiber cables to the SFP’s or XFP’s IN and OUT
ports.
To ensure good signal quality, make sure that the optical fibre
connector is fully inserted into the optical connector port.
Note: In order not to exceed the maximum receiver power level before damage,
an attenuator must be used. Refer to Maximum RX before damage (dBm)
on page 453 for more information.
Optical Port LEDs for RTU-310
LED Status Description
LASER On An optical signal is generated
Off No optical signal is generated
LINK/ACT On Ethernet link up
Off Ethernet link down
Flashing TX/RX activity
DUPLEX On Full Duplex mode
Off Half Duplex mode
Flashing Collisions are detected in half duplex mode
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