
MultiModemISDN User Guide
| &E3 | Disable flow control by the TA |
| &E4 | Hardware flow control. &E4 causes the TA to use the CTS signal on |
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| pin 5 of the RS232E/V.24 interface to regulate flow control. When |
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| CTS goes low, data flow from the computer is suspended until CTS |
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| goes high again. This method works with pacing, which uses the |
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| RTS signal on pin 4. Hardware flow control cannot be enabled |
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| unless an error correction protocol is selected. |
| &E5 | XON/XOFF flow control. This is an |
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| XON and XOFF characters (^Q and ^S, respectively) are inserted |
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| into the data stream, rather than using separate control lines. When |
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| an XOFF character is detected, the data stream is suspended until |
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| an XON character is detected. The drawback to this method is that |
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| some files may contain these characters, causing the file transfer to |
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| be suspended indefinitely. |
| &E6 | When XON/XOFF pacing is active, TA responds to and discards the |
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| XON/XOFF characters from the computer. |
| &E7 | When XON/XOFF pacing is active, the TA responds to the XON/ |
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| XOFF characters and passes them through the communications link |
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| to the remote device, thereby pacing the remote terminal adapter as |
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| well. |
| &E12 | Disables pacing |
| &E13 | Enables pacing |
Command: #Xn |
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Function: | Send Single/Multiple Xoff Characters | |
Values: | n = 0 or 1 | |
Default: | #X0 |
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Description: Allows TA to send either a single or multiple Xoff characters to exert flow | ||
| control to the terminal. | |
| The #X0 command (factory default setting) causes one Xoff to be sent until | |
| the | |
| an Xoff to be sent for every character received after TA reaches its buffer full | |
| level. |
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| #X0 | One Xoff character sent until buffer reaches the Xon level (default) |
| #X1 | Multiple Xoff characters sent for every character received after buffer |
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| reaches the full level |
Command: &Fn |
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Function: | Load Quick Setup Profile | |
Values: | n = |
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Default: | &F0 |
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Description: For quick setup, the TA includes six Quick Setup Profiles, each contains | ||
| configuration parameters for a specific type of port operation. To load a | |
| Quick Setup Profile into active memory, use &Fn, where n is the profile | |
| number to load.You then can customize the profile and store it using the &W | |
| command, so it loads automatically on | |
| stored in permanent memory and are not user configurable. (Appendix B.) | |
| &F0 | Profile 0 — |
| &F1 | Profile 1 — V.110 async operation* |
| &F2 | Profile 2 — V.120 async operation |
| &F3 | Profile 3 — X.75 async operation |
| &F4 | Profile 4 — MLPPP async operation |
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