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HM 18020-1, HM 18020-2
HARMONY MULTIMEDIA
HM 18020-1, HM 18020-2
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Card Type
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Modem (asynchronous)
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Chip Set
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Unidentified
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I/O Options
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Microphone, headphone, speaker out, line in, line out
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Maximum Modem Rate
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56.0Kbps
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Maximum Fax Rate
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14.4Kbps
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Data Modulation Protocol
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Bell 103/212A
ITU-T V.22, V.22bis, V.32, V.32bis, V.34, V.34+, K56FLEX
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Fax Modulation Protocol
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ITU-T V.17, V.27ter, V.29
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Error Correction/Compression
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MNP5, V.42, V.42bis
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Fax Class
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Class I
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Data Bus
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16-bit ISA
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Card Size
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Half-length, full-height card
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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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Headphone
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CN4
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Line out
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CN2
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Speaker out
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CN5
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Microphone
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CN3
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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í Plug & Play mode enabled
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JP4
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Pins 2 & 3 closed
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Plug & Play mode disabled
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JP4
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Pins 1 & 2 closed
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SERIAL PORT ADDRESS
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Setting
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JP2
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JP3
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COM1 (3F8h)
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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COM2 (2F8h)
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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COM3 (3E8h)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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COM4 (2E8h)
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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INTERRUPT
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IRQ
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JP1
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3
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Pins 10 & 11 closed
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4
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Pins 11 & 12 closed
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5
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Pins 7 & 8 closed
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7
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Pins 8 & 9 closed
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9
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Pins 4 & 5 closed
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10
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Pins 5 & 6 closed
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11
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Pins 1 & 2 closed
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12
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Pins 2 & 3 closed
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Plug & Play
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Pins 11 & 13 closed
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SUPPORTED COMMAND SET
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Basic AT Commands
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AT, A/
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A, B, E, H, L, M, Q, V, W, X, Y, Z
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&C, &G, &P, &T, &V, &W, &Y, &Z
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Extended AT Commands
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\G, \J
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%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, S14, S16, S18, S21, S22, S23, S24, S25,
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S26, S27, S29, S30, S31, S32, S33, S36, S37, S38, S39, S40, S41, S46, S48, S82, S86, S90,
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S91, S92, S95, S99
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Note: See MHI Help File for full command documentation.
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Proprietary AT Command Set
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DIAL
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Type:
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Immediate
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Format:
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AT [cmds] D<#> [cmds]
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Description:
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Dials telephone number according to any modifiers included in the string
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Note:
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Any combination of modifiers can be used to produce the desired dial functions in sequence.
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Command
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Function
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DP
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Pulse dialing enabled
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DS=n
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Dial stored telephone number n
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DT
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Tone dialing enabled/Pulse dialing disabled
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DW
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Dialing resumed following dial tone detection
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D,
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Dialing paused for amount of time specified in S8 register
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D!
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Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.
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D^
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Disable calling tone transmission for this call only
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D@
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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.
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D;
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Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.
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AUTO-MODE DETECTION
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Type:
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Configuration
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Format:
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AT [cmds] Nn [cmds]
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Description:
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Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.
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Command
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Function
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N0
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Auto-mode detection disabled
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í N1
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Auto-mode detection enabled
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DATA TERMINAL READY (DTR)
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Type:
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Configuration
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Format:
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AT [cmds] &Dn [cmds]
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Description:
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Selects modem response to DTR
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Note: The action each variant of &D causes depends on the setting of &Q
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Command
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Function
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í &D0
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Modem does not respond to DTR
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&D1
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Modem goes to escape mode after DTR goes is off
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&D2
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Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.
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FACTORY DEFAULT PROFILE
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Type:
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Configuration
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Format:
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AT [cmds] &F [cmds]
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Description:
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Sets values in active profile to values found in the default profile
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Command
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Function
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í &F0
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Restore factory profile 0
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&F1
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Restore factory profile 1
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FLOW CONTROL
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Type:
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Configuration
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Format:
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AT [cmds] &Kn [cmds]
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Description:
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Enables flow control options
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Command
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Function
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&K0
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Flow control disabled
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í &K3
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RTS/CTS flow control enabled
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&K4
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XON/XOFF flow control enabled
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&K5
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Transparent XON/XOFF flow control enabled
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DATA SET READY (DSR)
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Type:
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Configuration
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Format:
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AT [cmds] &Sn [cmds]
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Description:
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Selects DSR options
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Command
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Function
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&S0
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DSR forced high
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í &S1
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DSR high only while modem is handshaking or connected
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S(status) -REGISTERS
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SOFT SWITHCH FUNCTION
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Type:
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Register
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Format:
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AT [cmds] S80=n [cmds]
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Description:
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Controls the soft switch
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TRANSMISSION LEVEL - CELLULAR
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Type:
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Register
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Format:
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AT [cmds] S201=n [cmds]
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Default:
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10
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Range:
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0-15
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Unit:
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-1 dBm
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Description:
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Sets the signal level for transmission while in cellular mode
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REMOTE ACCESS ESCAPE CHARACTER
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Format:
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AT [cmds] S202=n [cmds]
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Default:
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Unidentified
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Range:
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0-62
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Description:
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Controls the remote access escape character.
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