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Chapter 1: Overview
13
The SC adapter is shown in Figure 2.
Figure 2. SC Fiber Optic Adapter
LED The AT-2874SX ExpressCard has one LED as shown in Figure 3.
Figure 3. AT-2874SX LED
Table 1 describes the link states that the LED indicates.
Stabilizer The stabilizer as shown in Figure 4 is a plastic bracket to help the
ExpressCard fit into the 54mm PCI ExpressCard slot. Allied Telesis
recommends utilizing the stabilizer when installing the ExpressCard in the
54mm interface slot.
Figure 4. Stabilizer
Table 1. Fiber Optic Port LED Status
State Description
Green The port is operating at 1000 Mbps and has a valid
link.
Flashing The port is receiving or transmitting network packets
at 1000 Mbps.