WSW39 (Function setting 17)
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| No. | 1 | 2 | 3 | 4 |
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| No. | 5 | 6 | 7 | 8 |
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1 | First transmission speed choice |
| 0 | 0 | 0 | 0 | : | 2400 bps |
| 0 | 0 | 0 | 1 | : | 4800 bps | ||
for fallback |
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| 0 | 0 | 1 | 0 | : | 7200 bps | ||
4 |
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| 0 | 0 | 1 | 1 | : | 9600 bps | |
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| 0 | 1 | 0 | 0 | : | 12000 bps |
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| 0 | 1 | 0 | 1 | : | 14400 bps |
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| 0 | 1 | 1 | 0 | : | 16800 bps |
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| 0 | 1 | 1 | 1 | : | 19200 bps |
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| 1 | 0 | 0 | 0 | : | 21600 bps |
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| 1 | 0 | 0 | 1 | : | 24000 bps |
5 | Last transmission speed choice |
| 1 | 0 | 1 | 0 | : | 26400 bps |
| 1 | 0 | 1 | 1 | : | 28800 bps | ||
for fallback |
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8 |
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| 1 | 1 | 0 | 0 | : | 31200 bps |
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| 1 | 1 | 0 | 1 | : | 33600 bps |
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| 1 | 1 | 1 | 0 | : | 33600 bps |
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| 1 | 1 | 1 | 1 | : | 33600 bps |
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NOTE: WSW39 takes effect only in the V. 34 mode.
•Selectors 1 through 8: First and last choices of transmission speed for fallback
These selectors are used to set the modem speed range. With the first transmission speed choice specified by selectors 1 through 4, the equipment attempts to establish the transmission link via the modem. If the establishment fails, the equipment automatically steps down to the next highest speed and attempts to establish the transmission link again. The equipment repeats this sequence while stepping down the transmission speed to the last choice specified by selectors 5 through 8.
If the modem always falls back to a low transmission speed (e.g., 24,000 bps), set the first transmission speed choice to the lower one (e.g., modify it from 31,200 bps to 26,400 bps) in order to deactivate the
WSW39 will be limited by selectors 3 through 8 of WSW40.
V - 49
