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Appendix AModem Register
The registers of the modem determine its operation characteristics.
This chapter describes the modem registers, except for those
reserved registers that can not be modified by the user.
S-Register Summary___________________________________
Register Range Units Default Function
S0 0-255 Rings 0 Rings to Auto-Answer
S1 0-255 Rings 0 Rings Counter
S2 0-255 ASCII 43 Escape character
S3 0-127 ASCII 13 Carriage return character
S4 0-127 ASCII 10 Line Feed Character
S5 0-255 ASCII 8 Backspace character
S6 2-255 s 2 Wait Time for Dial Tone
S6 5-6 s 6 Wait Time f or Dial Tone (for CTR21)
S7 1-255 s 50 Wait Time for Carrier
S8 0-255 s 2 Pause Time for Dial Delay Modifier
S9 1-255 0.1s 6 Carrier Detect Response Time
S10 1-255 0.1s 14 Carrier Loss Disconnect Time
S11 50-255 0.001s 95 DTMF Tone Duration
S12 0-255 0.02s 50 Escape Prompt Delay
S13 - - - Reserved
S14 - - 138(8Ah) General Bit Mapped Options Status
S15 - - - Reserved
S16 - - 0 Test Mode Bit Mapped Options
Status(&T)
S17 - - 192(C0n) Redial options status (&I)
S17 - - 64(40n) Redial options status (&I) (for CTR21)
S18 0.255 s 0 Test Timer
S19 - - 0 AutoSync Options
S20 0-255 - 0 AutoSync HDLC Address or BSC
Sync Character
S21 - - 52(34h) V.24/General Bit Mapped Options
Status
S22 - - 117(75h) Speaker/Results bit Mapped Options
Status
S23 - - 62(3Dh) General Bit Mapped Options Status
S24 0-255 s 0 Sleep Inact ivity Timer