iR1200 Modem
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S-REGISTERS
In this chapter, you are will learn about S-registers and how to configure registers for your iR1200 modem. This chapter includes:
S-Register Page 41
Programming S-Register Page 41
Reading S-Register Page 41
Supported S-Register Page 42
S-Registers
S-registers are memory locations in the modem that you can program to meet your communication needs. S-register
parameters are numbered from 0 (zero) to 255. Since many of the registers are reserved for internal operation purposes, you
are allowed to customize only a subset of the modem’s register.
Programming the S-Register
The following table describes the steps to program an S-Register.
1. From the command mode of your communication software, type ATSn=x where n is the number of the S-register you wish
to customize and x is the value that you wish to assign to that register.
2. Press ENTER to execute the command.
!
You may experience undesirable consequences if you modify the S7 or S10
registers from their set default values. For optimal performance, it is
recommended that you use the default values set for these two registers. If you
write to an S-register that is not programmable or if the value you assigned is
invalid, the modem will still return an OK message to the computer screen. The
attempted changes will not affect the S-register values.
Reading an S-Register Value
The following table describes how to read a value for an S-Register.
1. From the command mode, type ATSn (n= the number of the S-register that you want to read) and press ENTER.
2. The value of the requested S-register displays.
NOTE: If you attempt to read the value of an S-register that is not supported, the modem will display an ERROR
message.
