Comtrol RM-4 - Manual (Page 11)

Hardware Installation and Specifications RocketModem IV: 2000468 Rev. A - 11
AT S Registers
AT S Registers This section lists the basic AT Command Set S registers. The S registers use the
following format: ATSr=n where “r” is the S register number and “n” is the
value or parameter to set it to. To read the current contents of an S Register, issue
ATSr? where “r” is the register in question. The modem will then display the
value of the S Register.
Note: Sleep Mode Operation – S24 sets the length of time, in seconds, that the
modem will operate in normal mode with no detected telephone line or DTE
line activity before entering low power sleep mode. The timer is reset upon
any DTE or telephone line activity. If S24 is set to zero, the modem will
never enter the low power sleep mode.
Using the Diagnostics
The diagnostic file and an application that runs on Microsoft operating systems is
used to create a bootable diskette. Both files are available on the CD shipped with
the RocketModem IV. The diagnostic can be built using the CD menu system or
you can execute RModem/Diag/Rawrite.exe directly from the Comtrol CD.
Note: The application requires you to enter the disk image source file name. The
source file name is 1800055X.i; where X represents the revision letter of the
diagnostic.
Running the
Diagnostics After creating a bootable diskette, use the following procedure to run the
hardware diagnostics:
1. If the machine is on, power down the machine.
2. Insert the diagnostic diskette you created in the diskette drive and power up
the machine.
3. If necessary, configure your PC to boot from a diskette.
4. When the title screen displays, press any key to start the diagnostic.
5. Press any key to continue at the Please Note screen.
6. At the RocketModem ISA TYPE SELECTION screen, select C if there are no
RocketModem/ISA boards installed, and Enter. If there are any RocketModem/
ISA boards installed, select the appropriate letter for that model.
7. If the list of installed boards is correct, press Y and Enter.
Register Range Units Default Description
S0 0-255 Rings 0
Ring to answer on - ATS0=1
means answer call on 1
st
ring
detected
S1 0-255 Rings 0 Number of rings counted
S2 0-127 ASCII 43 Escape Code Character
S3 0-127 ASCII 13
Command terminator (Carriage
Return Character or the Enter
Key)
S4 0-127 ASCII 10 Line feed character
S5 0-127 ASCII 8 Back space character
S6 2-255 Seconds 2 Wait time for dial tone detection
S7 1-255 Seconds 50 Wait time for carrier
S8 0-255 Seconds 2 Pause time for coma in dial string
S10 1-255 .1sec 14 Loss of carrier to hang up delay
S11 50-255 .01sec. 95 DTMF tone duration
S12 0-127 1/50sec. 50 Escape Code Guard Time
S24* 0-255 1sec 0 Sleep Mode Inactivity Timer
S29 0-255 10mS 70 Hook flash dial modifier time (!)
S30 0-255 10sec. 0 Inactivity disconnect timer
S95 0 Result code control