48 Chapter 5 LEDs: support and diagnostic functions
Recognizing single token ring speed
For a single token ring unit, LED 4 shows the ring speed for 30 seconds after the unit is turned on. Table 15 shows the single token ring speed for LED 4. For more information about token ring units, refer to “Getting to know your Instant Internet 400 unit” on page 31.
Table 15 Single token ring speed (first 30 seconds)
LED # | Color | Appearance | Meaning |
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4 | Green | Solid | 4 Mb/s (token ring speed) |
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4 | Amber | Solid | 16 Mb/s (token ring speed) |
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Recognizing dual token ring speed
For a dual token ring unit, LED 4 shows the ring speed of the Tok1 token ring, and LED 5 shows the ring speed of the Tok2 token ring, each for 30 seconds after the unit is turned on. For more information about dual token ring units, refer to “Getting to know your Instant Internet 400 unit” on page 31.
Table 16 shows the dual token ring speed for LED 4, and Table 17 shows the dual token ring speed for LED 5.
Table 16 Dual token ring (Tok1) speed (first 30 seconds)
LED # | Color | Appearance | Meaning |
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4 | Green | Solid | 4 Mb/s (Tok1 ring speed) |
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4 | Amber | Solid | 16 Mb/s (Tok1 ring speed) |
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Table 17 Dual token ring (Tok2) speed (first 30 seconds)
LED # | Color | Appearance | Meaning |
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5 | Green | Solid | 4 Mb/s (Tok2 ring speed) |
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5 | Amber | Solid | 16 Mb/s (Tok2 ring speed) |
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