Maker : ETC
Part No. : XE2486

  Datasheet PDF : XE2486.pdf
  Cross Reference : XE2486 Cross Reference
  Buy Component : XE2486 Find Stock and Price

Shortcut : XE2486 

Product Information

xecom Miniature 2400 bps Modem Module Description Xecom's XE2486 is a miniature, low cost 2400 bit per second modem. It provides a complete modem, including necessary memory and the DAA in a package just 1.0 inch by 1.25 inches. User transferable FCC Part 68 registration is included. The XE2486 was specifically designed to provide OEM system designers with a quick, easy and low-cost way to integrate a 2400 bits per second modem. Industry standard "AT" commands provide modem control and configuration. The XE2486 interfaces with the system host through a TTL level, serial interface. XE2486 8-97 Features • Supported Protocols: V.22bis, V.22, V.21, Bell 212A and 103 • "AT" commands for modem control and configuration. • Small Size: 1.25 inches long, 1.0 inches wide, 0.50 inches high. • NVRAM stores commonly dialed numbers and custom modem configurations • Single +5V supply • Low power CMOS: Operating: 200 mW (Typ.) Sleep mode: 50 mW (Typ.) Block Diagram VCC Serial I/O TXD RXD DTR DSR RI CTS DCD ROM NVRAM Modem Controller Auxilliary I/O TXA RXA V-D HS RST SLEEP Tip Analog Front End DAA Ring SPK Gnd XECOM XE2486 XE2486 Mechanical Specifications INCHES PIN MIN MAX A B C D E F G H 1.240 0.990 0.490 0.120 0.090 0.060 0.090 0.790 1.260 1.010 0.510 0.140 0.110 0.080 0.110 0.810 METRIC(MM) MIN MAX 31.50 25.15 12.45 3.05 2.29 1.52 2.29 20.07 32.00 25.65 12.95 3.56 2.79 2.03 2.79 20.57 A B Denotes Pin 1 Pins = 0.010 by 0.020 inches C D G H G F E F Pin Configuration and Descriptions PIN 1 NAME Ring DESCRIPTION Ring provides half the two-wire connection to the telephone network, RJ-11 Pin 4. A 1500 volt barrier isolates Ring from all other circuits. This isolation must be preserved throughout the system. The battery voltage on Ring may be positive or negative with respect to Tip. XE2486 RING TIP RXA TXA SPK N/C N/C /SLP N/C TXD RXD 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 N/C RST GND VCC /HS /DCD /CTS /RI /DSR /DTR /V-D 2 Tip Tip provides half the two-wire connection to the telephone network, RJ-11 Pin 3. A 1500 volt barrier isolates Tip from all other circuits. This isolation must be preserved throughout the system. The battery voltage on Tip may be positive or negative with respect to Ring. Not used; Do not connect any circuitry to these Pins. 3,4 N/A XECOM (2) XE2486 Pin Descriptions continued PIN 5 NAME SPK DESCRIPTION SPK provides the audio output to a speaker. Speaker output is controlled by the ATL and ATM commands. The input impedance to the speaker driver must be greater than 300 ohms. No Connection This active low output indicates when the modem is in the sleep mode. No Connection TXD provides serial data input from the host. A logic high represents a "Mark" and a low represents a "Space". RXD provides serial data output to the host. A logic high represents a "Mark" and a low represents a "Space". The Voice-Data ouptut can be used to drive an external relay for switching between the modem and handset connected to the same telephone line. Data Terminal Ready is an active low input to the modem. The AT&D command sets the function of DTR. Data Set Ready is an active low output from the modem. Its operation is determined by the AT&S command. Ring Indicator is an active low output which marks the presence of a ring on the line. Clear to Send is not used on the XE2486; it will remain low at all times. Data Carrier Detect goes low to indicate receipt of a valid incoming carrier. The AT&C1 command enables the carrier detect function. This active low output indicates when the XE2486 has made a 2400 bps connection. VCC provides the +5 volt power required by the modem. Ground provides the common reference for the XE2486. This active high input cause a hardware reset in the XE2486. The reset pulse must be held high for at least 10 milliseconds to correctly reset the modem. No Connection 6, 7 8 9 10 N/C /SLP N/C TXD 11 RXD 12 /V-D 13 /DTR 14 /DSR 15 /RI 16 17 /CTS /DC...

Link URL