ARCHTEK CORPORATION
5634BTS
| 
 Card Type  | 
 Modem/Fax card  | 
| 
 Chip Set  | 
 Texas Instruments  | 
| 
 Maximum Modem Rate  | 
 56Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 Data Modulation Protocol  | 
 Bell 103/212Z ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34, V.34bis, V.90, X2  | 
| 
 Fax Modulation Protocol  | 
 ITU-T V.17, V.27ter, V.29, V.21 CH 2  | 
| 
 Error Correction/Compression  | 
 MNP5, V.42, V.42bis  | 
| 
 Fax Class  | 
 Class I & 2  | 
| 
 Data Bus  | 
 16-bit ISA  | 

| 
 CONNECTIONS  | ||||||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | |||
| 
 Line in (RJ-11)  | 
 CN1  | 
 Speaker jack  | 
 CN3  | |||
| 
 Line out (RJ-11)  | 
 CN2  | 
 Microphone jack  | 
 CN4  | |||
| 
 SERIAL PORT ADDRESS  | |||
| 
 Setting  | 
 JP1/A  | 
 JP1/B  | 
 JP1/C  | 
| 
 COM1 (3F8h)  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 COM2 (2F8h)  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 COM3 (3E8h)  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 COM4 (2E8h)  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 Plug & play  | 
 Open  | 
 Open  | 
 Open  | 
| 
 INTERRUPT  | ||||||
| 
 Setting  | 
 JP2/A  | 
 JP2/B  | 
 JP2/C  | 
 JP2/D  | 
 JP2/E  | 
 JP2/F  | 
| 
 IRQ3  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ4  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ5  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 IRQ9  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 IRQ10  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 IRQ15  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 Plug & play  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
 Open  | 
| 
 SUPPORTED COMMAND SET  | 
| 
 Basic AT Commands  | 
| 
 AT, ‘+++’, A/  | 
| 
 A, E, H, M, O, V  | 
| 
 &C, &G, &T, &W, &Z  | 
| 
 S Registers  | 
| 
 S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18  | 
| 
 Note: See MHI Help File for full command documentation. | 
PROPRIETARY AT COMMAND SET
| 
 BREAK OPTIONS  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format  | 
 AT [cmds] &Yn [cmds]  | |
| 
 Description:  | 
 Sets the method for break transmission during error-control and ASB connections.  | |
| 
 Command  | 
 Function  | |
| 
 í &Y0 | 
 Destructive signaling, buffers cleared, does not pass break to DCE  | |
| 
 &Y1  | 
 Expedited destructive signaling, buffers cleared, immediately send timed break  | |
| 
 &Y2  | 
 Expedited signaling, break sent out of sequence  | |
| 
 COMMUNICATION PROTOCOLS  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Bn [cmds]  | 
| 
 Description:  | 
 Selects the communication protocol for data calls  | 
| 
 Command  | 
 Protocol  | 
| 
 í B0 | 
 ITU-T V.25 answer sequence  | 
| 
 B1  | 
 Answer tone  | 
| 
 COMPRESSION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Kn [cmds]  | 
| 
 Description:  | 
 Selects data compression  | 
| 
 Command  | 
 Function  | 
| 
 &K0  | 
 Data compression disabled  | 
| 
 &K1  | 
 MNP5 and V.42bis enabled if DTE rate is higher than link rate and data compression supported by remote  | 
| 
 &K2  | 
 MNP5 and V.42bis enabled  | 
| 
 &K3  | 
 V.42bis enabled  | 
| 
 CONNECT MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Mn [cmds]  | 
| 
 Description:  | 
 Controls the type of connection the modem will operate in  | 
| 
 Command  | 
 Function  | 
| 
 &M0  | 
 Normal mode enabled  | 
| 
 í &M4 | 
 Auto-reliable mode enabled  | 
| 
 &M5  | 
 MNP reliable mode enabled  | 
| 
 DATA SET READY (DSR)  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Sn [cmds]  | 
| 
 Description:  | 
 Selects DSR options  | 
| 
 Command  | 
 Function  | 
| 
 í &S0 | 
 DSR forced high  | 
| 
 &S1  | 
 DSR high only while modem is handshaking or connected  | 
| 
 DATA TERMINAL READY (DTR)  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Dn [cmds]  | 
| 
 Description:  | 
 Selects modem response to DTR  | 
| 
 Command  | 
 Function  | 
| 
 &D0  | 
 DTR override  | 
| 
 &D1  | 
 DTR toggle causes online command mode  | 
| 
 í &D2 | 
 DTR toggle causes modem to go on-hook  | 
| 
 DCE LINE SPEED (MAXIMUM)  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format  | 
 AT [cmds] &Nn [cmds]  | 
| 
 Description:  | 
 Sets the maximum allowable data exchange rate attempted during handshake process.  | 
| 
 Command  | 
 Function  | 
| 
 &N1  | 
 Speed of last connection  | 
| 
 &N2  | 
 300bps  | 
| 
 &N3  | 
 1200bps  | 
| 
 &N4  | 
 2400bps  | 
| 
 &N5  | 
 4800bps  | 
| 
 &N6  | 
 7200bps  | 
| 
 &N7  | 
 9600bps  | 
| 
 &N8  | 
 12.0Kbps  | 
| 
 &N9  | 
 14.4Kbps  | 
| 
 &N10  | 
 16.8Kbps  | 
| 
 &N22  | 
 19.2Kbps  | 
| 
 &N12  | 
 21.6Kbps  | 
| 
 &N13  | 
 24.0Kbps  | 
| 
 &N14  | 
 26.4Kbps  | 
| 
 &N15  | 
 28.8Kbps  | 
| 
 &N16  | 
 31.2Kbps  | 
| 
 &N17  | 
 33.6Kbps  | 
| 
 &N18  | 
 32.0Kbps (X2)  | 
| 
 &N19  | 
 36.0Kbps (X2)  | 
| 
 &N20  | 
 40.0Kbps (X2)  | 
| 
 &N21  | 
 44.0Kbps (X2)  | 
| 
 &N22  | 
 48.0Kbps (X2)  | 
| 
 &N23  | 
 49.3Kbps (X2)  | 
| 
 &N24  | 
 50.7Kbps (X2)  | 
| 
 &N25  | 
 52.0Kbps (X2)  | 
| 
 &N26  | 
 53.3Kbps (X2)  | 
| 
 &N27  | 
 54.7Kbps (X2)  | 
&N28  | 
 56.0Kbps (X2)  | 
| 
 &N29  | 
 57.3Kbps (X2)  | 
| 
 &N30  | 
 58.7Kbps (X2)  | 
&N31  | 
 60.0Kbps (X2)  | 
| 
 &N32  | 
 61.3Kbps (X2)  | 
| 
 DCE LINE SPEED (MINIMUM)  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format  | 
 AT [cmds] &Un [cmds]  | 
| 
 Description:  | 
 Sets the minimum allowable data exchange rate attempted during handshake process.  | 
| 
 Command  | 
 Function  | 
| 
 &U1  | 
 No minimum  | 
| 
 &U2  | 
 300bps  | 
| 
 &U3  | 
 1200bps  | 
| 
 &U4  | 
 2400bps  | 
| 
 &U5  | 
 4800bps  | 
| 
 &U6  | 
 7200bps  | 
| 
 &U7  | 
 9600bps  | 
| 
 &U8  | 
 12.0Kbps  | 
| 
 &U9  | 
 14.4Kbps  | 
| 
 &U10  | 
 16.8Kbps  | 
| 
 &U22  | 
 19.2Kbps  | 
| 
 &U12  | 
 21.6Kbps  | 
| 
 &U13  | 
 24.0Kbps  | 
| 
 &U14  | 
 26.4Kbps  | 
| 
 &U15  | 
 28.8Kbps  | 
| 
 &U16  | 
 31.2Kbps  | 
| 
 &U17  | 
 33.6Kbps  | 
| 
 &U18  | 
 32.0Kbps (X2)  | 
| 
 &U19  | 
 36.0Kbps (X2)  | 
| 
 &U20  | 
 40.0Kbps (X2)  | 
| 
 &U21  | 
 44.0Kbps (X2)  | 
| 
 &U22  | 
 48.0Kbps (X2)  | 
| 
 &U23  | 
 49.3Kbps (X2)  | 
| 
 &U24  | 
 50.7Kbps (X2)  | 
| 
 &U25  | 
 52.0Kbps (X2)  | 
| 
 &U26  | 
 53.3Kbps (X2)  | 
| 
 &U27  | 
 54.7Kbps (X2)  | 
&U28  | 
 56.0Kbps (X2)  | 
| 
 &U29  | 
 57.3Kbps (X2)  | 
| 
 &U30  | 
 58.7Kbps (X2)  | 
&U31  | 
 60.0Kbps (X2)  | 
| 
 &U32  | 
 61.3Kbps (X2)  | 
| 
 DIAL  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] D<#> [cmds]  | 
| 
 Description:  | 
 Dials telephone number according to any modifiers included in the string  | 
| 
 Note:  | 
 Any combination of modifiers can be used to produce the desired dial functions in sequence.  | 
| 
 Command  | 
 Function  | 
| 
 DL  | 
 Re-dial last number  | 
| 
 DP  | 
 Pulse dialing enabled  | 
| 
 DT  | 
 Tone dialing enabled/Pulse dialing disabled  | 
| 
 DW  | 
 Dialing resumed following dial tone detection  | 
| 
 D,  | 
 Dialing paused for amount of time specified in S8 register  | 
| 
 D!  | 
 Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.  | 
| 
 D/  | 
 Delays for 125ms before dialing  | 
| 
 DR  | 
 Answer mode enabled; originate mode disabled following handshake initiation.  | 
| 
 DSn  | 
 Dial stored telephone number n  | 
| 
 D@  | 
 Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.  | 
| 
 D$  | 
 Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command.  | 
| 
 D;  | 
 Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.  | 
| 
 ERROR CORRECTION RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &An [cmds]  | 
| 
 Description:  | 
 Selects error correction responses  | 
| 
 Command  | 
 Function  | 
| 
 &A0  | 
 ARQ result codes disabled  | 
| 
 &A1  | 
 ARQ to word CONNECT result codes enabled when an error correction connection is made  | 
| 
 &A2  | 
 V.32 indicator added in result codes for calls at or above 4800bps  | 
| 
 &A3  | 
 Protocol response added: /LAPM, /MNP, or NONE and V.42bis/MNP5  | 
| 
 FACTORY DEFAULT PROFILE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Fn [cmds]  | 
| 
 Description:  | 
 Sets values in active profile to values found in the default profile  | 
| 
 Command  | 
 Function  | 
| 
 &F0  | 
 Load standard factory configuration  | 
| 
 &F1  | 
 Restore factory configuration 1. Hardware flow control  | 
| 
 &F2  | 
 Restore factory configuration 2. Software flow control  | 
FLOW CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Hn [cmds]  | 
| 
 Description:  | 
 Enables flow control options  | 
| 
 Command  | 
 Function  | 
| 
 &H0  | 
 Flow control disabled  | 
| 
 &H1  | 
 RTS to CTS flow control enabled  | 
| 
 &H2  | 
 XON/XOFF flow control enabled  | 
| 
 &H3  | 
 RTS/CTS & XON/XOFF flow control enabled  | 
| 
 LIST DISPLAY  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] &$ [cmds]  | 
| 
 Description:  | 
 Displays a list of ampersand commands  | 
| 
 LOCK SERIAL PORT  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Bn [cmds]  | 
| 
 Description:  | 
 Sets operation of serial port speed  | 
| 
 Command  | 
 Function  | 
| 
 &B0  | 
 Serial speed follows connect speed  | 
| 
 í &B1 | 
 Serial speed locked  | 
| 
 &B2  | 
 In answer mode; serial speed fixed for ARQ calls, variable for non-ARQ calls  | 
| 
 PULSE DIALING RATIO  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Pn [cmds]  | 
| 
 Description:  | 
 Selects pulse dial make/break ratio  | 
| 
 Command  | 
 Function  | 
| 
 í &P0 | 
 39/61ms at 10pps (North America)  | 
| 
 &P1  | 
 33/67ms at 10pps (Europe)  | 
| 
 REPORT INFORMATION  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] In [cmds]  | 
| 
 Description:  | 
 Displays information requested  | 
| 
 Command  | 
 Function  | 
| 
 I0  | 
 Reports product code  | 
| 
 I1  | 
 Reports ROM checksum  | 
| 
 I2  | 
 Reports results of RAM self-test  | 
| 
 I3  | 
 Reports product type  | 
| 
 I4  | 
 Reports current modem settings  | 
| 
 I5  | 
 Reports NVRAM settings  | 
| 
 I6  | 
 Reports link diagnostics  | 
| 
 I7  | 
 Reports product confirmation  | 
| 
 I8  | 
 Reserved  | 
| 
 I9  | 
 Reports plug & play information  | 
| 
 I10  | 
 Reserved  | 
| 
 I11  | 
 Reports call statistics  | 
| 
 RESTORE PROFILE ON POWER-UP  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Yn [cmds]  | 
| 
 Description:  | 
 Restores a selected profile into the active profile on power-up (hard reset)  | 
| 
 Command  | 
 Function  | 
| 
 í Y0 | 
 Restore profile 0 on power-up  | 
| 
 Y1  | 
 Restore profile 1 on power-up  | 
| 
 Y2  | 
 Restore generic factory template (&F0)  | 
| 
 Y3  | 
 Hardware flow control (&F1)  | 
| 
 Y4  | 
 Software flow control (&F2)  | 
| 
 RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Qn [cmds]  | 
| 
 Description:  | 
 Enables modem to send result codes to the DTE  | 
| 
 Command  | 
 Function  | 
| 
 í Q0 | 
 Result code sending enabled  | 
| 
 Q1  | 
 Result code sending disabled  | 
| 
 Q2  | 
 Result code sending only in originate mode  | 
| 
 Q3  | 
 Result code sending only in ring mode  | 
| 
 RTS  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Rn [cmds]  | 
| 
 Description:  | 
 Selects RTS  | 
| 
 Command  | 
 Function  | 
| 
 &R0  | 
 RTS signal is ignored  | 
| 
 í &R1 | 
 Data is sent to DTE only is RTS in forced high  | 
| 
 SELECT CALL PROGRESS RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Xn [cmds]  | 
| 
 Description:  | 
 Enables selection of tone detection and associated result code format options  | 
| 
 Command  | 
 Function  | 
| 
 X0  | 
 Busy and dial tone detection disabled; result codes 0 - 4 enabled.  | 
| 
 X1  | 
 Busy and dial tone detection disabled; result codes 0 - 5 & 10 - 25 enabled.  | 
| 
 X2  | 
 Busy tone detection disabled, dial tone detection enabled; result codes 0 - 6 & 10 - 236 enabled.  | 
| 
 X3  | 
 Busy and dial tone detection disabled; 8 - 236 enabled.  | 
| 
 X4 - X6  | 
 Busy and dial tone detection enabled; extended result codes enabled  | 
| 
 SOFT RESET  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] Zn [cmds]  | 
| 
 Description:  | 
 Restores modem profiles previously saved in non-volatile RAM using the &W command.  | 
| 
 Command  | 
 Function  | 
| 
 Z0  | 
 Restore NVRAM profile selected by ATY command  | 
| 
 Z1  | 
 Restore NVRAM profile 0  | 
| 
 Z2  | 
 Restore NVRAM profile 1  | 
| 
 Z3  | 
 Restore factory default profile 0 (&F0)  | 
| 
 Z4  | 
 Restore factory default profile 1 (&F1)  | 
| 
 Z5  | 
 Restore factory default profile 2 (&F2)  | 
| 
 SPEAKER VOLUME  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] Ln [cmds]  | 
| 
 Description:  | 
 Controls speaker volume  | 
| 
 Command  | 
 Function  | 
| 
 L0  | 
 Low volume setting  | 
| 
 L1  | 
 Low volume setting  | 
| 
 í L2 | 
 Medium volume setting  | 
| 
 L3  | 
 Highest volume setting  | 
| 
 XON/XOFF PASS-THROUGH  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &In [cmds]  | 
| 
 Description:  | 
 Selects whether XON/XOFF signals are sent to remote modem  | 
| 
 Command  | 
 Function  | 
| 
 í &I0 | 
 XON/XOFF signals trapped by local modem  | 
| 
 &I1  | 
 XON/XOFF passed through local modem and remote  | 
| 
 &I2  | 
 XON/XOFF passed through local modem only  | 
S(status) -REGISTERS
| 
 ANSWER TONES, DEFAULT TIMES, AND CONNECTION LIMITING  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S28=n [cmds]  | |
| 
 Description:  | 
 Controls answer tones, connections, and time specified  | |
| 
 Command  | 
 Function  | |
| 
 S28=0  | 
 Eliminates V.32 answer tones for a faster connection  | |
| 
 S28=8  | 
 All default times are in 1sec units  | |
| 
 S28=255  | 
 Connections disabled except V.32 9600bps  | |
| 
 BIT-MAPPED REGISTER S27  | |||
| 
 Format:  | 
 AT [cmds] S27=n [cmds]  | ||
| 
 Range:  | 
 0-255  | ||
| 
 Description:  | 
 Select modulations and error correction flags  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0  | 
 0 1  | 
 V.21/Bell 103 mode disabled V.21/Bell 103 mode enabled  | |
| 
 1  | 
 0 1  | 
 Unencoded modulation in V.32 mode disabled Unencoded modulation in V.32 mode enabled  | |
| 
 2  | 
 0 1  | 
 V.32 modulation enabled V.32 modulation disabled  | |
| 
 3  | 
 0 1  | 
 2100Hz answer tone enabled 2100Hz answer tone enabled  | |
| 
 4  | 
 0 1  | 
 V.23 fallback mode disabled V.23 fallback mode enabled  | |
| 
 5  | 
 0 1  | 
 V.32bis mode enabled V.32bis mode disabled  | |
| 
 6  | 
 0  | 
 Reserved  | |
| 
 7  | 
 0 1  | 
 Software compatibility mode disabled Software compatibility mode enabled  | |
| 
 BIT-MAPPED REGISTER S32  | |||
| 
 Format:  | 
 AT [cmds] S32=n [cmds]  | ||
| 
 Range:  | 
 0-255  | ||
| 
 Description:  | 
 Select modulations and call control flags  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0  | 
 0 1  | 
 V.8 call indicate disabled V.8 call indicate enabled  | |
| 
 1  | 
 0 1  | 
 V.8 mode disabled V.8 mode enabled  | |
| 
 2  | 
 0 1  | 
 V.FC modulation enabled V.FC modulation disabled  | |
| 
 3  | 
 0 1  | 
 V.34 modulation enabled V.34 modulation disabled  | |
| 
 4  | 
 0 1  | 
 V.34+ modulation enabled V.34+ modulation disabled  | |
| 
 5  | 
 0 1  | 
 X2 modulation enabled X2 modulation disabled  | |
| 
 6  | 
 0 1  | 
 V.90 modulation enabled V.90 modulation disabled  | |
| 
 7  | 
 0  | 
 Reserved  | |
| 
 BIT-MAPPED REGISTER S33  | |||
| 
 Format:  | 
 AT [cmds] S33=n [cmds]  | ||
| 
 Range:  | 
 0-255  | ||
| 
 Description:  | 
 Enables/disables symbol rates  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0  | 
 0 1  | 
 2400 symbol rate enabled 2400 symbol rate disabled  | |
| 
 1  | 
 0 1  | 
 2743 symbol rate enabled 2743 symbol rate disabled  | |
| 
 2  | 
 0 1  | 
 2800 symbol rate enabled 2800 symbol rate disabled  | |
| 
 3  | 
 0 1  | 
 3000 symbol rate enabled 3000 symbol rate disabled  | |
| 
 4  | 
 0 1  | 
 3200 symbol rate enabled 3200 symbol rate disabled  | |
| 
 5  | 
 0 1  | 
 3429 symbol rate enabled 3429 symbol rate disabled  | |
| 
 6  | 
 0  | 
 Reserved  | |
| 
 7  | 
 0 1  | 
 2400 symbol rate enabled 2400 symbol rate disabled  | |
| 
 BIT-MAPPED REGISTER S34  | |||
| 
 Format:  | 
 AT [cmds] S34=n [cmds]  | ||
| 
 Range:  | 
 0-255  | ||
| 
 Description:  | 
 Controls trellis coding options  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0  | 
 0 1  | 
 8S-2D trellis encoding enabled 8S-2D trellis encoding disabled  | |
| 
 1  | 
 0 1  | 
 16S-4D trellis encoding enabled 16S-4D trellis encoding disabled  | |
| 
 2  | 
 0 1  | 
 32S-2D trellis encoding enabled 32S-2D trellis encoding disabled  | |
| 
 3  | 
 0 1  | 
 64S-4D trellis encoding enabled 64S-4D trellis encoding disabled  | |
| 
 4  | 
 0 1  | 
 Non-linear coding enabled Non-linear coding disabled  | |
| 
 5  | 
 0 1  | 
 TX level deviation enabled TX level deviation disabled  | |
| 
 6  | 
 0 1  | 
 Pre-emphasis enabled Pre-emphasis disabled  | |
| 
 7  | 
 0 1  | 
 Pre-coding enabled Pre-coding disabled  | |
| 
 BIT-MAPPED REGISTER S41  | |||
| 
 Format:  | 
 AT [cmds] S41=n [cmds]  | ||
| 
 Range:  | 
 0-255  | ||
| 
 Description:  | 
 Controls trellis coding options  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 0, 1  | 
 0000 0001 1000  | 
 Full-duplex speaker mode Half-duplex speaker mode Message waiting  | |
| 
 7-2  | 
 0  | 
 Reserved  | |
| 
 BREAK CHARACTER LENGTH  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S21=n [cmds]  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 10ms  | 
| 
 Description:  | 
 Sets the length of break characters sent from modem to DTE in MNP or V.42 mode  | 
| 
 DCE LINE SPEED (PARTIALLY BIT-MAPPED)  | |||
| 
 Type:  | 
 Register  | ||
| 
 Format  | 
 AT [cmds] S35=n [cmds]  | ||
| 
 Description:  | 
 Sets the maximum allowable data exchange rate attempted during handshake process and limits x2 back channel operation  | ||
| 
 Command  | 
 Function  | ||
| 
 S35=0  | 
 No back channel rate  | ||
| 
 S35=1  | 
 28.8Kbps  | ||
| 
 S35=2  | 
 26.4Kbps  | ||
| 
 S35=3  | 
 24.0Kbps  | ||
| 
 S35=4  | 
 21.6Kbps  | ||
| 
 S35=5  | 
 19.2Kbps  | ||
| 
 S35=6  | 
 16.8Kbps  | ||
| 
 S35=7  | 
 14.4Kbps  | ||
| 
 Bit  | 
 Value  | 
 Function  | |
| 
 3  | 
 í 01  | 
 X2 server operation disabled X2 server operation enabled  | |
| 
 4  | 
 í 01  | 
 A /m law operation disabled A /m law operation enabled  | |
| 
 5  | 
 í 01  | 
 A /m law detection enabled A /m law detection disabled  | |
| 
 6  | 
 í 01  | 
 Reduced power enabled Reduced power disabled  | |
| 
 7  | 
 0  | 
 Reserved  | |
| 
 DTR IGNORE TIME ON CONNECT  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S25=n [cmds]  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 .01 second  | 
| 
 Description:  | 
 Sets time modem waits to hang-up when DTR signal shuts off  | 
Note: This is the function of this register when &D2 is set.  | |
| 
 FLOW CONTROL CHARACTER - XOFF  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S23=n [cmds]  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used to represent XOFF  | 
| 
 FLOW CONTROL CHARACTER - XON  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S22=n [cmds]  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used to represent XON  | 
| 
 INACTIVITY TIMER  | |
| 
 Type:  | 
 Register  | 
| 
 Format  | 
 AT [cmds] S19=n [cmds]  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 1min  | 
| 
 Description:  | 
 Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process.  | 
Note: S19=0 disables the timer and allows indefinite inactivity.  | |