Terminal Adapter AT Commands & S-Registers

#Xn Send Single/Multiple Xoff Characters Values: n = 0 or 1

Default: #X0

Allows the 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 TA‘s buffer reaches the Xon level. The #X1 command causes an Xoff to be sent for every character received after the TA reaches its buffer full level.

#X0 One Xoff character sent until the buffer reaches the Xon level (default)

#X1 Multiple Xoff characters sent for every character received after buffer reaches the full level.

&Fn Load Quick Setup Profile

Values: n = 0-4

Default: &F0

For quick setup, the TA includes Quick Setup Profiles. Each contains configuration parameters for a specific type of port operation. To load a Quick Setup Profile into active memory use the command &Fn, where n is the number of the profile you want to load. You then can customize the profile and store it with the &W command, so it loads automatically on power-up or reset. These profiles are stored in permanent memory and are not user-configurable.

&F0 Profile 0 — Modem-like async operation (default)

&F1 Profile 1 — V.110 async operation &F2 Profile 2 — V.120 async operation &F3 Profile 3 — X.75 async operation &F4 Profile 4 — PPP async operation

&Rn CTS Control Values: n = 0, 1, or 2

Default: &R1 (CTS forced high)

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MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD

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Multi-Tech Systems ISIHP-4U manual #Xn Send Single/Multiple Xoff Characters Values n = 0 or, Fn Load Quick Setup Profile