PARADYNE CORPORATION COMSPHERE 3910 Modem Type Data (synchronous/asynchronous) Maximum Data Rate 19.2Kbps Data Bus External Data Modulation Protocol AT&T V.32terbo, Point to Point diagnostic, Trellis Multipoint Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V27bis, V.29, V.32, V.32bis Error Correction/Compression MNP5, V.42, V.42bis [Image] CONNECTIONS Purpose Location Purpose Location Switched line CN1 Power switch SW1 Leased line CN2 Scroll left CN6 RS-232/422 CN3 Scroll right CN7 DC power CN4 Go up one level CN8 Network Management CN5 Go to top level CN9 (proprietary) DIAGNOSTIC LED(S) LED Color Status Condition PWR Green On Power is on PWR Green Off Power is off ALRM Red Blinking Major alarm detected in a remote 391x series modem ALRM Red Off Normal operation DIAG Green On Modem is receiving diagnostic messages DIAG Green Off Modem is not receiving diagnostic messages DTR/108 Green On DTR signal is high DTR/108 Green Off DTR signal is low RTS/105 Green On RTS signal is high RTS/105 Green Off RTS signal is low CTS/106 Green On CTS signal is high CTS/106 Green Off CTS signal is low TXD/103 Green On Modem is receiving data from DTE TXD/103 Green Off Modem is not receiving data from DTE LSD/109 Green On Carrier signal detected LSD/109 Green Off Carrier signal not detected RXD/104 Green On Modem is transmitting data to DTE RXD/104 Green Off Modem is not transmitting data to DTE SQ Yellow Blinking Line signal is degraded or data path is being blocked SQ Yellow Off Normal operation TEST/142 Yellow On Test connection established TEST/142 Yellow Blinking Modem is upgrading firmware TEST/142 Yellow Off No test connection established RATE Yellow On Modem is connected at less than configured speed RATE Yellow Off Modem is connected at configured speed DIAL Yellow On Modem is establishing a switched line connection DIAL Yellow Blinking Switched line connection established DIAL Yellow Off No switched line connection Proprietary AT Command Set ANTISTREAMING Type: Register Format: AT [cmds] S72=n [cmds] Example: AT S72=0 &W Description: Selects antistreaming option Command Function S72=0 Disabled S72=1 10 seconds S72=2 30 seconds S72=3 1 minute S72=4 2 minutes S72=5 3 minutes S72=6 5 minutes AT COMMAND RESPONSE Type: Register Format: AT [cmds] S84=n [cmds] Example: AT S84=0 &W Description: Sets the response to AT commands. Command Function S84=0 Normal operation S84=1 Execute valid commands, suppress error codes. S84=2 Ignore configuration commands, always return OK error code. AUTO BAUD Type: Register Format: AT [cmds] S78=n [cmds] Example: AT S78=0 &W Description: Allows modem to connect at remote modem’s modulation. Command Function S78=0 Auto baud enabled. S78=1 Auto baud disabled. AUTO-RELIABLE FALLBACK CHARACTER Type: Configuration Format: AT [cmds] %An [cmds] Example: AT%A20 Default: 19 Range: 0-127 Unit: ASCII Description: Sets the character used as the auto-reliable fallback character. %A0 will disable this function. AUTO-RELIABLE TIME BUFFER CONFIGURATION Type: Configuration Format: AT [cmds] \Cn [cmds] Example: AT \C1 &W Description: Controls the handling of incoming data during auto-reliable time period. Command Function \CO Data is discarded. \C1 Data is buffered. \C2 Data is discarded, resets to \C1 on receipt of autoreliable fallback character. BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Example: AT \K5 &W Description: Selects response to DTE break command. Command Function \K0 Send break, clear buffer, enter command mode. \K1 Send break, clear buffer \K2 Send break, send data, enter command mode. \K3 Send break. send data, \K4 Send data, send break, enter command mode. \K5 Send data, send break. BUFFER REDUCED ASYNCRONOUS Type: Register Format: AT [cmds] S97=n [cmds] Example: AT S97=0 &W Description: Limits asynchronous buffer size to a 20 character maximum Command Function S97=0 Buffer size limit disabled. S97=1 Buffer size limit enabled BUSY OUT ON LOW DTR Type: Register Format: AT [cmds] S69=n [cmds] Example: AT S69=0 &W Description: Modem goes off hook on low DTR (use only in PBX mode). Command Function S69=0 Busy out disabled. S69=1 Busy out enabled. CALLBACK SECURITY Type: Register Format: AT [cmds] S67=n [cmds] Example: AT S67=0 &W Description: Enables callback security option Command Function S67=0 Disabled S67=1 Enabled CD SIGNAL Type: Configuration Format: AT [cmds] &Cn [cmds] Example: AT &C3 *RS1 *SR1 Description: Configures the behavior of the carrier detect signal. Command Function &C0 CD forced high. &C1 CD normal. &C2 CD forced high except during handshaking and disconnecting. &C3 CD momentary follows DTR. &C4 CD follows remote RTS signal. &C5 CD Follows DTR signal. Forced low on disconnect. CELLULAR ENHANCEMENTS Type: Register Format: AT [cmds] S91=n [cmds] Example: AT S91=0 &W Description: Configures modem to enhanced cellular mode Command Function S91=0 Disabled S91=1 Enabled COMPRESSION Type: Configuration Format: AT %Cn Example: AT I2 %C1 &B0 Description: Selects data compression. Command Function %C0 Data compression disabled. %C1 Data compression enabled. CTS SIGNAL Type: Configuration Format: AT [cmds] \Dn [cmds] Example: AT \D0 Description: Selects the function of the CTS signal. Command Function \D0 CTS forced high. \D1 CTS normal. \D2 CTS interrupted for 2 seconds on disconnect. \D3 CTS follows DTR. \D4 CTS follows RTS DISCONNECT BUFFER DELAY Type: Register Format: AT [cmds] S49=n [cmds] Example: AT S49=0 Default: 10 Range: 0-255 Unit: 1 second Description: Selects how long the modem will continue to transmit data in transmit buffer after receipt of disconnect signal DISCONNECT IMMEDIATELY Type: Register Format: AT [cmds] S85=n [cmds] Example: AT S85=0 &W Description: Disconnect immediately on receipt of disconnect signal from DTE or diagnostic control panel. Command Function S85=0 Disabled. S85=1 Enabled. DISCONNECT ON LOSS OF CURRENT Type: Register Format: AT [cmds] S65=n [cmds] Example: AT S65=0 Description: Causes the modem to disconnect if the telephone line’s current drops. Command Function S65=0 Disconnect after 8ms if current is lost. S65=1 Disconnect after 90ms if current is lost. S65=2 Disabled DTE RATE CONTROL Type: Register Format: AT [cmds] S61=n [cmds] Example: AT S61=0 &W Description: Sets result of DTE CT111 rate control signal. Command Function S61=0 Disabled. S61=1 Fallback 1. S61=2 Fallback 2. FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Example: AT \G1 &K3 Description: Selects modem port flow control. Command Function \G0 Flow control disabled. \G1 Flow control enabled. FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Example: AT \Q5 Description: Sets type of flow control used by modem. Command Function \Q0 Flow control disabled. \Q1 Bidirectional XON/XOFF flow control enabled. \Q2 CTS flow control by DCE enabled. \Q3 Bidirectional CTS/RTS flow control enabled. \Q4 XON/XOFF flow control by DTE enabled. \Q5 XON/XOFF flow control by DCE enabled. \Q6 RTS flow control by DTE enabled. INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Example: AT\T20 Default: 0 Range: 0-255 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects. LAP-M FRAME SIZE Type: Configuration Format: AT [cmds] \An [cmds] Example: AT \A3 %C1 Description: Sets the maximum frame size for V.42 and MNP connections. Command Function \A0 Maximum frame size is 64 \A1 Maximum frame size is 128 \A2 Maximum frame size is 192 \A3 Maximum frame size is 256 \A4 Maximum frame size is 32 \A5 Maximum frame size is 16 LAP-M FRAME WINDOW Type: Register Format: AT [cmds] S89=n [cmds] Example: ATS89=6 Default: 0 Range: 1-9 Unit: 1 frame (beginning with 0=6 frames) Description: Sets the number of frames used in V.42 and V.42bis transmissions LEASED LINE AUTO-RETRAIN Type: Register Format: AT [cmds] S82=n [cmds] Example: AT S82=0 &W Description: Allows modem to retrain to compensate for bad line quality in V.32bis or V.32terbo Command Function S82=0 Retrain enabled. S82=1 Retrain disabled. LEASED LINE BACKUP SPECIAL STANDBY Type: Register Format: AT [cmds] S98=n [cmds] Example: AT S98=0 &W Description: Allows leased line dial backup using a third modem. Command Function S98=0 Disabled S98=1 Enabled LEASED LINE DIAL BACKUP Type: Register Format: AT [cmds] S46=n [cmds] Example: AT S46=0 &F1 Description: Automatically establishes switched line connection if leased line fails Command Function S46=0 Disabled. S46=1 Enabled. LEASED LINE BACKUP RECOVERY DELAY Type: Configuration Format: AT [cmds] S47=n &F1 [cmds] Example: AT S47=0 &F1 Description: After leased line failure, modem attempts to reconnect after specified delay. Command Function S46=0 Disabled. S46=1 15 minute delay. S46=2 60 minute delay. S46=3 4 hour delay S46=4 2 minute delay (test) S46=5 Adv 15 minutes S46=6 Adv 30 minutes S46=7 Adv 60 minutes S46=8 Adv 2 minutes (test) LEASED LINE DISCONNECT LEVEL Type: Register Format: AT [cmds] S48=n [cmds] Example: AT S48=0 &W Description: Sets level carrier signal drops to before disconnect. Command Function S48=0 Disconnect at -43dBm S48=1 Disconnect at -26dBm S48=2 Disconnect at -33dBm LEASED LINE SPEED Type: Register Format: AT [cmds] S44=n [cmds] Example: ATS44=18 Default: 18 Description: Sets maximum leased line speed Command Function S44=1 14.4Kbps V.32bis S44=2 12.0Kbps V.32bis S44=3 9600bps V.32bis S44=4 7200bps V.32bis S44=5 4800bps V.32bis S44=6 2400bps V.22bis S44=11 14.4Kbps V.33 S44=12 12.0Kbps V.33 S44=13 9600bps V.29 S44=14 7200bps V.29 S44=15 4800bps V.29 S44=16 4800bps V.27 S44=17 2400bps V.27bis S44=18 19.2Kbps V.32terbo S44=19 16.8Kbps V.32terbo S44=20 19.2Kbps TMp S44=21 14.4Kbps TMp S44=22 9600bps TMp S44=23 7200bps TMp S44=24 4800bps TMp S44=25 2400bps TMp LEASED LINE TRANSMISSION LEVEL Type: Register Format: AT [cmds] S45=n [cmds] Example: AT S45=15 Default: 0 Range: 0 - 15 Unit: 1 dBm Description: Sets the signal level for transmission when in leased line mode. LINE TYPE Type: Configuration Format: AT [cmds] &Ln [cmds] Example: AT &L0 H1 DT555-1212 Description: Selects line type. Command Function &L0 Switched line. &L1 2-wire originate mode leased line. &L2 4-wire originate mode leased line. &L3 2-wire answer mode leased line. &L4 4-wire answer mode leased line. LOCAL ANALOG LOOPBACK Type: Register Format: AT [cmds] S52=n [cmds] Example: AT S52=0 &W Description: Modem executes local analog loopback on receipt of CT141 signal from DTE Command Function S52=0 Loopback disabled. S52=1 Loopback enabled. LOCK SERIAL PORT Type: Register Format: AT [cmds] S90=n [cmds] Example: AT S90=0 Description: Sets operation of serial port speed. Command Function S90=0 Disabled. S90=1 Serial speed follows connect speed. NETWORK POSITION IDENTIFICATION Type: Register Format: AT [cmds] S74=n [cmds] Example: AT S74=0 &W Description: Identifies modem as either tributary or control Command Function S74=0 Identify as tributary S74=1 Identify as control PASSWORD REMOTE ACCESS Type: Register Format: AT [cmds] S56=n [cmds] Example: ATS56=06 Default: None Range: 00-99 Unit: Password digits Description: Allows entry of the first two digits of remote access password. PASSWORD REMOTE ACCESS Type: Register Format: AT [cmds] S57=n [cmds] Example: ATS57=06 Default: None Range: 00-99 Unit: Password digits Description: Allows entry of the second two digits of remote access password. PASSWORD REMOTE ACCESS Type: Register Format: AT [cmds] S58=n [cmds] Example: ATS58=06 Default: None Range: 00-99 Unit: Password digits Description: Allows entry of the third two digits of remote access password. PASSWORD REMOTE ACCESS Type: Register Format: AT [cmds] S59=n [cmds] Example: ATS59=06 Default: None Range: 00-99 Unit: Password digits Description: Allows entry of the fourth two digits of remote access password. REMOTE CONFIGURATION Type: Register Format: AT [cmds] S55=n [cmds] Example: AT S55=0 &W Description: Allows remote configuration by 3800 series modem. Command Function S55=0 Remote configuration enabled. S55=1 Remote configuration disabled. REMOTE DIGITAL LOOPBACK Type: Register Format: AT [cmds] S51=n [cmds] Example: AT S51=0 &W Description: Modem executes remote digital loopback on receipt of CT140 signal from DTE Command Function S51=0 Loopback disabled. S51=1 Loopback enabled. REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Example: AT I1 O Description: Displays modem properties. Command Function I0 Reports product code. I1 Reports firmware 3 digit version number. I2 Performs EPROM check STORED PROFILE Type: Register Format: AT [cmds] S88=n [cmds] Example: AT S88=0 &W Description: Loads stored profile on disconnect. Command Function S88=0 Disabled. S88=231 Disabled. S88=1 Enabled. S88=232 Enabled. SWITCHED LINE SPEED Type: Register Format: AT [cmds] S41=n [cmds] Example: ATS41=20 Default: 20 Description: Sets maximum line speed Command Function S41=1 14.4Kbps V.32bis S41=2 12.0Kbps V.32bis S41=3 9600bps V.32bis, V.32 S41=4 7200bps V.32bis S41=5 4800bps V.32bis, V.32 S41=6 2400bps V.22bis S41=11 14.4Kbps V.33 S41=12 12000bps V.33 S41=13 9600bps V.29 S41=14 7200bps V.29 S41=15 4800bps V.29 S41=16 4800bps V.27 S41=17 2400bpsV.27bis S41=18 19.2Kbps V.32terbo S41=19 16.8Kbps V.32terbo S41=20 19.2Kbps TMp S41=21 14.4Kbps TMp S41=22 9600bps TMp S41=23 7200bps TMp S41=24 4800bps TMp S41=25 2400bps TMp TRANSMISSION LEVEL Type: Configuration Format: AT [cmds] &In [cmds] Example: AT &I26 &W Default: Unidentified Range: 0-32, 99, 100 Unit: -1 dBm Description: Sets the signal level for transmission Note: 0-9 invalid in North America. TRELLIS MULTIPOINT TRANSMIT PREEMPHASIS Type: Register Format: AT [cmds] S96=n [cmds] Example: AT S96=0 &W Description: Compensates for high frequency attenuation with amplification Command Function S96=0 Enabled S96=1 Disabled TRELLIS MULTIPOINT TRAIN TIME Type: Register Format: AT [cmds] S95=n [cmds] Example: AT S95=0 &W Description: Selects train time from tributary to control modem. Command Function S95=0 10 milliseconds S95=1 20 milliseconds S95=2 50 milliseconds S95=3 100 milliseconds S95=4 200 milliseconds S95=5 300 milliseconds V.25bis CODE SET Type: Register Format: AT [cmds] S62=n [cmds] Example: AT S62=0 &W Description: Sets coding type used in V.25bis mode. Command Function S62=0 ASCII S62=1 EBCDIC V.25bis IDLE CHARACTER Type: Register Format: AT [cmds] S63=n [cmds] Example: AT S63=0 &W Description: Sets V.25 idle fill type Command Function S63=0 Fill character is mark. S63=1 Fill character is flag. V.25bis NEW LINE CHARACTER Type: Register Format: AT [cmds] S64=n [cmds] Example: AT S64=0 &W Description: Sets V.25 new line character. Command Function S64=0 Carriage return and line feed. S64=1 Carriage return. S64=2 Line feed. V.27 TRAIN Type: Register Format: AT [cmds] S72=n [cmds] Example: AT S72=0 &W Description: Sets train length. Command Function S43=0 Short S43=1 Long V.29 LINK TYPE Type: Register Format: AT [cmds] S94=n [cmds] Example: AT S94=0 &W Description: Selects point to point or multipoint operation Command Function S94=0 Point to point operation S94=1 Multipoint operation V.29 RETRAIN Type: Register Format: AT [cmds] S93=n [cmds] Example: AT S93=0 &W Description: Modem transmits training sequence on receipt of training sequence Command Function S93=0 Disabled S93=1 Enabled V.29 TRAIN Type: Register Format: AT [cmds] S92=n [cmds] Example: AT S92=0 &W Description: Allows retrain based on incoming data or training sequence. Required for tributary modem. Command Function S92=0 Disabled S92=1 Enabled V.32bis AUTO-RETRAIN Type: Register Format: AT [cmds] S76=n [cmds] Example: AT S76=0 &W Description: Selects action the modem will take during bad line quality on 32bis connection. Command Function S76=0 Auto retrain enabled. S76=1 Auto retrain disabled. V.32bis TRAIN Type: Register Format: AT [cmds] S43=n [cmds] Example: AT S43=0 &W Description: Sets train length for V.32bis and V32. Command Function S43=0 Long S43=1 Short V.42bis COMPRESSION CONTROL Type: Configuration Format: AT [cmds] "Hn [cmds] Example: AT "H3 &W Description: Controls V.42bis data compression Command Function "H0 V.42bis disabled. "H1 V.42bis when transmitting enabled. "H2 V.42bis when receiving enabled. "H3 V.42bis when transmitting/receiving enabled. V.54 DEVICE ADDRESS Type: Register Format: AT [cmds] S53=n [cmds] Example: ATS53=6 Default: 0 Range: 0-34 Unit: Device address 0= disabled Description: Identifies the address of the modem in loopback test. V.54 DEVICE TYPE Type: Register Format: AT [cmds] S54n [cmds] Example: AT S54=0 &W Description: Identifies modem’s network position. Command Function S54=0 Peripheral S54=1 Intermediate XON/XOFF PASS-THROUGH Type: Configuration Format: AT [cmds] \Xn [cmds] Example: AT \X7 O Description: Selects whether XON/XOFF signals are sent to remote modem. Command Function \X0 XON/XOFF signals trapped by local modem. \X1 XON/XOFF passed through local modem. Proprietary V.25bis Command Set DISPLAY STORED NUMBERS Type: Immediate Format: RLNn Example: RLN2 Description: Display number in memory location n. If no number is given, all stored numbers will be displayed.