Maker : ETC
Part No. : XE2401L

  Datasheet PDF : XE2401L.pdf
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Product Information

xecom 2400bps Serial Input Component Modem Description Xecom's XE2401L component modem is a complete 2400 bps data modem. Its compact size and TTL level, serial interface allows for quick integration into virtually any new or existing design. The XE2401L contains all of the circuitry required for complete modem operation, including a user transferable FCC Part 68 registration, allowing direct connection to the Telephone Network. The XE2401L was specifically designed to provide industrial systems manufacturers with a complete, highly integrated, compact solution for adding data communication to their products. Block Diagram XE2401L 02-13-96 Features • Small Size 1.08” x 2.28” x 0.42”, • FCC Part 68 Registered, user transferable • Data Transfer at 2400, 1200 and 300 bps • Supported Protocols: - CCITT V.22bis, V.22, V.21 - Bell 212A, 103 • TTL serial interface interfaces with industry standard UART’s • Single +5v supply • Modem control with Industry standard “AT” command set • Standard package allows easy upgrades to Fax (XE9624F) and 9600 bps (XE9601) operation PIN CONFIGURATION Reset AR RXD 1 2 3 40 39 38 +5V DSR DCD (Top View) DTR AA CTS OH TXD RTS HS RI TIP RING 9 10 11 12 13 14 15 16 18 20 22 21 AMP GND Mechanical Specifications - Package type 'C2' PIN A B C D E F G H J K INCHES MIN MAX 2.270 2.290 1.070 1.090 0.420 0.430 0.890 0.910 1.890 1.910 0.125 0.200 0.080 0.100 0.180 0.200 0.090 0.110 0.020 0.025 METRIC(MM) MIN MAX 57.66 58.17 27.18 27.69 10.67 10.92 22.61 23.11 48.01 48.51 03.18 05.08 02.03 02.54 04.57 05.08 02.29 02.79 00.51 00.64 C K F G H J D E METRIC WEIGHT 31.75 grams A ENGLISH 1.12 oz. B • PIN 1 DOT Pins: 0.025" x 0.025" All pins tin-plated Recommended hole size: 0.056" Pin Descriptions PIN NAME 1 RESET I/O I DESCRIPTION External reset pin active HI, TTL. An internal circuit resets the modem when power is applied, no external reset is required. Any external reset applied to the modem must be applied for a minimum of 100 milliseconds. Auxiliary Data/Voice Relay output, active HI, TTL/CMOS. When high the external, auxiliary telephone set relay is closed and the modem is in the voice mode. Serial data output to the DTE (i.e. external UART). A logic "high" represents a "mark" and a logic "low" represents a "space", TTL. Data Terminal Ready, input, active LO, TTL. The function of this pin is set by the &D command and the value in register S21. 2 AR O 3 RXD O 9 DTR I 2/XECOM XE2401L PIN NAME 10 11 AA CTS I/O O O DESCRIPTION Auto Answer enable indicator, output, active LO, TTL/CMOS. Clear to Send, output, active LO, TTL/CMOS. A low indicates the modem is ready to accept data signals for transmission. Off-Hook, output, active HI, TTL/CMOS. A high indicates the modem's hookswitch relay is closed connecting the modem to the telephone line. Serial data input from the DTE (i.e. external UART). A logic "high" represents a "mark" and a low represents a"space", TTL. Request to Send, input, active LO, TTL. High Speed indicator, output, active LO, TTL/CMOS. Low when operating at 2400bps rate, high otherwise. Ring Indicator, output, active LO, TTL. When low indicates the modem is receiving a ring signal. Tip connection to the phone line (RJ11 pin3) from the internal DAA. Ring connection to the phone line (RJ11 pin4) from the internal DAA. Caution: Observe design rules for Tip & Ring trace layout. Ground. Audio output to speaker. Function is determined by L & M commands and the value in register S22. The imput impdedence to the speaker driver must be greater tha 300 ohms. Data Carrier Detect, output, active LO, TTL/CMOS. Function is set by the &C command and the value in register S21. Data Set Ready, output, active LO, TTL/CMOS. Function is set by the &S command and the value in register S21. +5 Volts. 12 OH O 13 TXD I 14 15 RTS HS I O 16 RI O 18 20 21 22 TIP RING GND AMP --------- 38 DCD O 39 DSR O 40 Vcc --- Note: No other pin positions are present...

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