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Número de pieza | XE0002D | |
Descripción | Modular DAA | |
Fabricantes | Xecom | |
Logotipo | ||
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XE0002D
August 2005
Modular DAA with 2/4 Wire Convertor
Description
The XE0002D is a compact DAA module designed
for applications requiring voice, data or fax
transfer. It complies with FCC Part 68 rules for
direct connection to the public switched telephone
network and also supports leased line applications.
The XE0002D provides a complete telephone
interface. It includes the 2/4 wire convertor to
separate transmit and receive signals, ring
detection, integral switch hook and telephone line
transformer. All of this circuitry is integrated into a
module requiring only 1.25 inches of board space.
Features:
• Small Size: just 1.25 inches by 1.0 inches by
0.32 inches high
• FCC Part 68 Compliant
• User selectable 2-4 wire convertor
• Active Low Ring Detection
• Integral Switch Hook
• Supports V.32 Data Transfer
• Supports both dial-up and leased line
applications
• Extended Operating Temperature Range (-40C
to +85C) available
XE0002D Block Diagram
/OH
XMIT
RCVR
2/4-Wire
Conve rter
XFMR
J1
T1
T2
J2
/RI
Hook-Switch
Telephone
Line
Transforme r
Loop
Curre nt
Holding
Circuit
Tip
Ring
Ring Detect
Jumpers J1 and J2 must be installed to connect the 2 to 4 wire convertor.
XECOM
(1) XE0002D
1 page XE0002D Typical Connection Diagram with Internal 2/4 Wire Converter
Modem Analog
Front End
/Ring
Receive
Transmit
OHRLY
+5 Volts
-5 Volts
XE0002D
VDD
VCC
/RI
RCVR
XMIT
XFMR
J1
T1
OH
Gnd
J2 T2
TIP
RING
10 ohms, 1/2 W
Teccor
P3100SC
10 ohms, 1/2 W
FerriteBead
FerriteBead
470 pFd
3000 Volts
RJ11
4
3
470 pFd
3000 Volts
XE0002D Typical Connection Diagram without Internal 2/4 Wire Converter
+5 Volts
TDK 73M1903
GPIO0
RXAN
TXAN
TXAP
RXAP
GPIO1
42K
R1
R2
42K
XE0002D
VDD
VCC
/RI
RCVR
XMIT
XFMR
T1
T2
Gnd
/OH
10 ohms, 1/2 W
TIP
Teccor
P3100SC
RING
10 ohms, 1/2 W
FerriteBead
FerriteBead
470 pFd
3000 Volts
RJ11
4
3
470 pFd
3000 Volts
Note:
R1 and R2 each equal one half of the ideal line matching impedance, 170 ohms.
XECOM
(5) XE0002D
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet XE0002D.PDF ] |
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