EVEREX SYSTEMS, INC. EMAC-MD2400 (EV-945) Card Type Modem (asynchronous) Chipset Unidentified I/O Options Speakerphone Maximum Data Rate 2400bps Data Modulation Bell 103A/212A ITU-T V.21, V.22, V.22bis Error Correction/Compression MNP3 Data Bus Serial [Image] CONNECTIONS Function Label Function Label Speakerphone button BT1 DC power in CN4 Mute button BT2 Microphone MIC Telephone line out CN1 Volume control R1 Telephone line in CN2 Power switch SW2 RS-232/422 port CN3 USER CONFIGURABLE SETTINGS Setting Label Position Modem ignores DTR SW1/1 Off Modem disconnects and does not accept SW1/1 On commands on low DTR; auto-answer is disabled Verbose result code format enabled. SW1/2 Off Numeric result code format enabled. SW1/2 On Result codes enabled SW1/3 Off Result codes disabled SW1/3 On Command echo enabled SW1/4 Off Command echo disabled SW1/4 On USER CONFIGURABLE SETTINGS (CON’T) Setting Label Position Auto-answer disabled SW1/5 Off Auto-answer after first ring SW1/5 On CD signal forced high SW1/6 Off CD signal normal SW1/6 On Modem is connected to RJ-11 or RJ-14 jack SW1/7 Off Modem is connected to RJ-12 or RJ-13 jack SW1/7 On Command set enabled SW1/8 Off Command set disabled SW1/8 On Modem uses Bell 212A at 1200bps SW1/9 Off Modem uses ITU-T V.22 at 1200bps SW1/9 On DIAGNOSTIC LED(S) LED Color Status Condition SPL Red On Modem is in speakerphone mode SPL Red Off Modem is not in speakerphone mode ML Red On Speakerphone is muted ML Red Off Speakerphone is not muted RI Red On Phone is ringing RI Red Off Phone is not ringing HS Red On Modem is operating at 2400bps HS Red Off Modem is operating at slower than 2400bps AA Red On Auto-answer enabled AA Red Off Auto-answer disabled CD Red On Carrier signal detected CD Red Off Carrier signal not detected OH Red On Modem is off-hook OH Red Off Modem is on-hook RD Red Blinking Modem is receiving data RD Red Off Modem is not receiving data TD Red Blinking Modem is transmitting data TD Red Off Modem is not transmitting data TR Red On DTR signal is high TR Red Off DTR signal is low MR Red On Power is on MR Red Off Power is off SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, B, E, F, H, L, M, O, Q, V, X, Y, Z &C, &D, &G, &L, &P, &T Extended AT Commands \B, \C, \J, \K, \N, \O, \Q, \T, \U, \V, \X, \Y, \Z %A S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S18, S21, S22, S23, S27 Note: See MHI help file for complete information. Not all EMAC-MD2400 modems support MNP. Those that do not will not support the Extended AT Commands line. Proprietary AT Command Set DIAL Type: Immediate Format: AT [cmds] D<#>;[cmds] Description: Dials the telephone number indicated 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 DP Pulse dialing enabled. DR Answer mode enabled; originate mode disabled following handshake initiation. DT Tone dialing enabled. 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@ Wait for Quiet 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/ Dialing paused for 1/8 second. D; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. CALL SWITCHING Type: Immediate Format: AT [cmds] &En [cmds] Description: Selects whether the modem will automatically disconnect a data call if the phone is picked up. Command Function &E0 Call switching enabled. &E1 Call switching disabled. DISPLAY INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested about the modem. Command Function I0 Displays product identification code. I1 Displays ROM checksum. I2 Displays current connection speed, data bits, and parity. I3 Displays 000 if modem is on-hook and 001 if modem is off-hook. I4 Displays modem identification string (displayed in parentheses in model name header on MHI document). HELP Type: Immediate Format: AT [cmds] &Hn [cmds] Description: Displays help on the topic indicated. Command Function &H0 Displays help on AT commands. &H1 Displays help on S-registers. &H2 Displays help on modem result codes. SPEED CHANGE MESSAGES Type: Immediate Format: AT [cmds] &In [cmds] Description: Selects whether the modem will send a "SPEED MISMATCH/PLEASE SET TO xxxx" message if the serial port speed is different than the line speed. Command Function &I0 Speed change messages enabled. &I1 Speed change messages disabled.