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SM-5743
SOUTH MOUNTAIN TELECOMMUNICATIONS
SM-5743
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Card Type
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Fax, Modem (asynchronous)
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Chip Set
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Unidentified
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Maximum Modem Rate
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14.4Kbps
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Maximum Fax Rate
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14.4Kbps
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Data Bus
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External
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Fax Class
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Class I & II
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Data Modulation Protocol
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Bell 103A/212A
ITU-T V.21,V.22, V.22bis, V.32, V.32bis
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Fax Modulation Protocol
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ITU-T V.17, V.21 ch2, V.27ter, V.29
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Error Correction/Compression
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MNP2-5, V.42, V.42bis
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Boot ROM
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Not available
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CONNECTIONS
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Function
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Label
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Function
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Label
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Line in
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CN1
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DC power
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CN4
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Line out
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CN2
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Power switch
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SW1
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RS-232/422
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CN3
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DIAGNOSTIC LED(S)
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LED
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Color
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Status
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Condition
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MR
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Red
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On
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Power is on
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MR
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Red
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Off
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Power is off
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TR
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Red
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On
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DTR signal is high
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TR
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Red
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Off
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DTR signal is low
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TD
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Red
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Blinking
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Modem is transmitting data
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TD
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Red
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Off
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Modem is not transmitting data
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RD
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Amber
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Blinking
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Modem is receiving data
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RD
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Amber
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Off
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Modem is not receiving data
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OH
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Red
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On
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Modem is off-hook
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OH
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Red
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Off
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Modem is on-hook
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CD
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Red
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On
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Carrier signal detected
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CD
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Red
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Off
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Carrier signal not detected
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AA
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Red
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On
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Auto-answer enabled
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AA
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Red
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Off
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Auto-answer disabled
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AA
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Red
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Blinking
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Phone is ringing
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Proprietary AT Command Set
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SUPPORTED STANDARD COMMANDS
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Basic AT Commands
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+++, ‘comma’, A/
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A, B, D, H, L, M, N, O, Q, V, W, X, Z
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&D, &F, &G, &J, &K, &V, &W, &Y, &Z
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Extended AT Commands
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\A, \B, \G, \K, \V, \X, %A, %C, %E, %L, %Q
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S-Registers
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S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S26, S46, S48
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Note: See MHI documentation for complete information.
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UNIDENTIFIED COMMANDS
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Command
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Default
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S27
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Unidentified
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S36
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0
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S40
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57
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S42
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0
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CONNECT MODE
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Type:
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Immediate
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Format:
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AT [cmds] \Nn [cmds]
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Description:
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Controls the type of connection the modem will operate in
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Command
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Function
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\N0
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Normal mode enabled
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\N1
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Direct mode enabled
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\N2
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MNP reliable mode enabled
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í\N4
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Auto-reliable mode enabled
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DISPLAY INFORMATION
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Type:
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Immediate
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Format:
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AT [cmds] In [cmds]
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Description:
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Displays information requested about the modem.
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Command
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Function
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I0
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Displays product identification code.
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I1
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Displays ROM checksum.
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I3
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Displays firmware revision.
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I4
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Displays product features.
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INACTIVITY TIMER
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Type:
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Register
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Format
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AT [cmds] S30=n [cmds]
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Default:
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0
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Range:
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0-90
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Unit:
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1 minute
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Description:
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Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process.
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Note:
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S30=0 disables the timer and allows indefinite inactivity.
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V.32 - AUTO-RETRAIN
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Type:
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Configuration
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Format:
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AT [cmds] &Bn [cmds]
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Description:
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Controls auto-retrain function if poor line quality is detected
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Command
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Function
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&B0
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Auto-retrain disabled modem hangs-up
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í &B1
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Auto-retrain enabled if line quality is poor
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&B2
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No hang-up, no auto-retrain
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