Optical Bypass — Enabled (green):
If you are using a bypass switch, the Optical Bypass—Enabled LED
lights only when the switch is causing the FDDI ring to bypass the
router. (The router will be bypassed when it is booting and when the
FDDI circuit is disabled.) That is, the Optical Bypass LED is not lit
when the FDDI circuit is enabled.
If you are not using a bypass switch, the Optical Bypass—Enabled
LED is always lit, regardless of the state of communication between
the router and the FDDI ring.
Router Operation
Interpreting Back-Panel LEDs
2-12
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