Version: 1.5
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1.6.4 Optical Giga Ethernet Interface as Trunk Interface with SC Connector
The trunk interface is made with the SC connector, which is available in two types:
Gigabits Ethernet optical long haul LX single mode interface.
Gigabits Ethernet optical short haul SX multimode interface.
For each type of optical transceiver, they should connect with corresponding optical fiber with proper mode.
Incorrect fiber mode may affect link distance or even link fail. Fiber for long haul LX: Single-mode (SM),
9/125 micron.
Fiber for short haul SX: Multi-mode (MM), 50/125 or 62.5/125-micron.
The two types of interface are visually and functionally similar. Installation procedures are the same. This
dual port has both connectors on transmit (upstream) and a receiving (downstream) as shown in Figure 1-
18. There are warnings for the optical fiber connection.
Warning
The laser energy of the fiber optic communication channels in the single-mode will be harmful when
operate, especially to the eyes. During normal operation with cable connection, this energy is confined
to the cable with no danger present.
Because the laser radiation is invisible and may be emitted from the aperture of the port before
connect the cable or protective cap, please avoid exposure to laser radiation and also do not fix the
gaze to open apertures.
The following precautions are to avoid injury when connecting or disconnecting optical channel.
Always connecting optical cables before power on.
Always keep the protective cap on the optic connector.
Never stare into an optical cable or connector when the connector is not in use.
Connect the fiber channel using the following steps:
Step 1 Read and understand the previous warnings and alarm.
Step 2 Remove the protective caps from the fiber optic connector and from the external data cable.
Step 3 Attach the external cable to the recessed connector on the faceplate as shown on Figure 1-17.
Step 4 To avoid exposure to laser radiation by plug the protective cap. Store protective cap on the clear
place to use when no optical fiber connection or on stock.
