SRM-100Secure Rack ModemAT Command Reference Guide;Multi-Tech Format Modems5 Sterling · Irvine · California 92618-2517(949) 586-9950 · Toll Free: 1-80

Command Function/Options$Rn Retransmit.* $R0 Disconnect after 12 retransmits in Reliable Mode.$R1 Unlimited retransmits in Reliable Mode.&RFn Clea

Command Function/Options&Wn Save Modem Parameters.&W0 Instructs modem to save current parameters in nonvolatile RAM. Themodem will load these

4. S-RegistersThe S-Registers are used to store modem configuration parameters, display modem status, and initiatemodem test and diagnostic functions.

Register Range Default FunctionS11 1 - 255 70 Tone Dialing; Tone Spacing and Duration. Sets the duration and spacing (inmilliseconds) between DTMF (to

5. Modem Result CodesWhen AT commands are invoked, the modem will respond with either Terse (numeric) or Verbose (text)result codes. The result code f

Customer ServiceCustomer Service hours are from 8:00 AM to 5:00 PM, PST, Monday through Friday. When calling,please be prepared to give the name and m

Table of Contents1. Introduction...1-12. Communicating with the Internal Modem...

1. IntroductionThe SRM-100 Secure Rack Modem is designed for applications that require secure, dial-up access toconsole ports on rack mounted equipmen

2. Communicating with the Internal ModemIn order to invoke AT commands manually, you must communicate directly with the SRM's internalmodem. The

3. AT Command SetThis section describes the AT command set. Note the following:·Type commands in either upper or lower case. Do not use a combination

Command Function/OptionsBn CCITT Mode / Bell Mode* B0 V.21 for 300 bps operation (CCITT Mode).B1 300 bps operation (Bell Mode).$BAn Speed Conversion*

Command Function/Options$EBn Eleven Bit Mode.* $EB0 Disable 11 bit mode.$EB1 Enable 11 bit mode.&En Error Correction / Flow Control.&E0 No Err

Command Function/Options&Gn Guard Tone.* &G0 Disable CCITT guard tones.&G1 Enable CCITT 550 Hz guard tone (international).&G2 Enable C

Command Function/Options$MBn Modem (Telco Port) Baud Rate.$MB75 CCITT V.23 mode.$MB300 300 bps on-line.$MB1200 1200 bps on-line.$MB2400 2400 bps on-li