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XE0002B

Xecom
Part Number XE0002B
Manufacturer Xecom
Description DAA
Published Dec 30, 2006
Detailed Description www.DataSheet4U.com XECOM DAA with 2/4 Wire Hybrid Description The XE0002B Data Access Arrangement provides a 'direct c...
Datasheet PDF File XE0002B PDF File

XE0002B
XE0002B

Overview
www.
DataSheet4U.
com XECOM DAA with 2/4 Wire Hybrid Description The XE0002B Data Access Arrangement provides a 'direct connect' telephone line interface.
It complies with FCC Part 68 hazardous voltage, surge and leakage current specifications.
This component may be used as the direct connect telephone line interface for virtually any application in which voice or data is to be transmitted over the public switched telephone network.
The XE0002B provides high voltage isolation, independent on/off hook control, ring detection circuitry and a 2 to 4 wire converter hybrid for use in modem applications.
It operated from ±5 volt power supplies and occupies 1.
25 square inches of board space.
XE0002B PIN CONFIGURATION VDD Vcc RI RCVR XMIT XMFR T1 OH GND T2 1• 2 3 4 5 6 7 8 9 10 20 TIP 17 (Top View) 14 13 12 11 RING N/C N/C N/C N/C Features • • • • • • • Small Size - 1.
25" x 1.
0" x 0.
5" FCC Part 68 Compliant Ring Detection 2 to 4 Wire Converter 1500 Volt Isolation 800 Volt Surge Protection Hookswitch Control CAUTION PINS 17 & 20 HAVE 1500V ISOLATION FROM THE REST OF THE CIRCUITRY.
THIS ISOLATION SHOULD BE PRESERVED THROUGHOUT THE SYSTEM Block Diagram Pin Descriptions PIN NAME 1 2 3 4 5 6 VDD VCC \RI RCVR XMIT XMFR I/O ----O O I I DESCRIPTION -5 Volts.
+5 Volts Ring Indicator, output, active LO, TTL.
When low indicates the modem is receiving a ring signal.
Analog signal output from the 2-4 wire convertor.
Analog signal input to the 2-4 wire convertor.
Analog input/output from the Surge and Protective Network to the internal 2-4 wire convertor.
Must be tied to pin 7, T1, to use the internal 2-4 wire convertor.
Analog Signal input/output to the Surge and Protective network.
Off-Hook controls the hookswitch relay within the XE0002B.
A high on OH closes the internal relay and connects the equipment to the telephone line.
Ground.
Analog Signal input/output to the Surge and Protective network.
Ring connection to the phone line (RJ11 pin4) from the internal DAA.
Tip con...


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