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Xecom - FCC Registered DAA Module

Numéro de référence XE0068DT
Description FCC Registered DAA Module
Fabricant Xecom 
Logo Xecom 





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XE0068DT
November 2004
FCC Registered DAA Module with DTMF Transmitter/Decoder
Description
The XE0068DT is an FCC registered telephone line
interface which includes a DTMF transmitter, DTMF
decoder and call progress monitor.
FCC rules limit the signal level that equipment can place
on the telephone line. The XE0068DT incorporates an
Automatic Gain Control (AGC) circuit to control the
output signal level. The AGC optomizes the output
levele over a wide variety of input levels without
introducing signal distortion.
FCC rules also dictate a 2-second delay at the start of
each call. This billing delay prevents information
transmission during the billing period. The XE0068DT
includes this billing delay.
The integrated DTMF transceiver, call progress monitor
and FCC registration make the XE0068DT ideal for
network signalling applications.
Features
* Small Size - 2.28" x 1.08" x 0.42"
* User Transferrable FCC Part 68 Registration
* Integrated Ring Detection Circuit.
* Solid-State Hookswitch Control
* Provides 1500 Volt Isolation between the tele-
phone line and all other circuits
* Includes supplemental surge protection to survive
both FCC Type A and Type B surges.
* Integral 2-Second Billing Delay (required for FCC
Part 68 registration)
* Automatic Gain Control optimizes transmit level
for most any input level.
* Integral DTMF transmitter and decoder
* Call Progress Monitoring
XE0068DT Block Diagram
XE0068DT Pin Configuration
D0
D1
D2
D3
ESt
/RD
/WR
/CS
RS0
CP
St/GT
DTMF
Transmitter
& Receiver
Line
Transformer
Hook Switch
Tip
Ring
OH
2-4 Wire
RCVR Convertor
XMIT
D/V
AGC
Ring
Detect
/RI
Billing Delay
Timer
VCC o 1
D3 o 2
D2 o 3
D1 o 4
D0 o 5
/WR o 6
/RD o 7
/CS o 8
RS0 o 9
N/C o 10
N/C o 11
N/C o 12
D/V o 13
26 o Tip
24 o Ring
22 o /RI
21 o OH
20 o N/C
19 o RCVR
18 o XMIT
17 o St/GT
16 o ESt
15 o CP
14 o GND
XECOM
(1) XE0068DT

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