Multi-Tech MultiModem ISIHI-2S, Manual

Page: 71 / 186

MultiModemISI Hybrid Series, ISIHI-2S 71
Chapter 4—MODEM AT Commands, S-Registers, Result Codes
Modem
Configuration Storage and Recall Commands
The ISIHI-2S stores parameters in two places. It stores factory default parameters in
read-only memory (ROM), and customized parameters in nonvolatile random access
memory (NVRAM). You cannot change the default parameters in ROM, but you can
change parameters in temporary memory and then store them in NVRAM as custom
settings. You can then recall the custom settings as if they were factory default settings.
&W n Store Configuration
n = 0
Default: &W0
The &W command stores current AT commands and S-register values in nonvolatile
memory, so you won’t lose your custom settings when you turn off the modem or reset it.
&W0 (or &W) stores all current AT command and S-register values in nonvolatile random
access memory (NVRAM) and configures the modem so that it reads your custom
settings in NVRAM when the modem is turned on or when it is reset with the Z command.
The &F reset command will continue to read the factory default settings in ROM.
&F
n
Load Default Configuration
n = 0
Default: &F0
ISIHI-2S modems store factory default AT command settings and S-register values in
read-only memory (ROM); they store your custom AT command and S-register values in
nonvolatile random access memory (NVRAM).
The &F0 (or &F) command resets modem to the factory default values stored in ROM.
Z n Reset Modem
n = 0 or 1
Default: none
The Z command resets the modem to the configuration last saved by the &W command.
The default values come from the customized configuration in NVRAM.
Z1 is the same as Z0, and functions identically.
&Y
n
Select Stored Configuration for Hard Reset
n = 0
Default: 0
This command is included for compatibility with applications that issue the &Y0
command. Modem functions are not changed.
&Y0 selects the profile stored at location 0 on power-up.