Multi-Tech Systems ISIHP-4U, ISIHP-4SD manual Terminal Adapter S-Registers

Terminal Adapter AT Commands & S-Registers

Returns TA to online mode from the online command mode. When TA makes a data connection, it enters online data mode. The TA typically remains in this mode until it receives an escape sequence or until the call ends. When it detects an escape sequence, the TA enters online command mode, where it can accept AT commands while retaining the online connection. To return the TA to online mode from the online command mode, enter the command ATO and press ENTER.

@CONFIG Start ConfigMenu Values: none Default: none

Starts TA’s internal configuration utility, which allows you to customize the configuration for your application. Enter the command while in terminal mode.

Terminal Adapter S-Registers

S-registers are sections of memory in which values are stored that affect how the TA operates. S-registers are so-called because each has a name that begins with the character S. Use the S command to assign a value to or to read the current value of an S-register. To assign a value to an S-register, use the command Sr=n, in which r is the register number, and n is the value you want to assign to the register, e.g., S7=45. To read an S-register value, use the command Sr?, in which r is the register number, e.g., ATS7?.

S-Register Summary
S-Register	Function
S0	Rings until answer
S1	Ring count
S2	Escape character
S3	Carriage return character
S4	Line feed character
S5	Backspace character
S7	Wait for connection (abort timer)
S8	Pause Time for Comma
S10	DCD Drop Time
S25	DTR Drop Time

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