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XE0020C Datasheet

  • XE0020C

  • Telephone Line Interface with Active Line Monitoring

  • 30.22KB

  • 6頁(yè)

  • ETC

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XE0020 and XE0020C
8/97
Telephone Line Interface with Active Line Monitoring
Description
The XE0020 and XE0020C are complete compact
telephone interface modules. As with all Xecom
DAAs the XE0020 and XE0020C include Ring
Detection, Switch-Hook, and Loop Current
Holding Circuits. In addition both the XE0020 and
XE0020C include two line monitors to insure
unobtrusive customer premises operation. The
XE0020C also passes the Caller ID signal through
to the system host.
Xecom designed the XE0020 and XE0020C for
unobtrusive operation in residential applications.
Two integral line monitors prevent interference
with the residents calls.
Connect Detect
verifies line availability before the
equipment seizes the line. This will prevent the
equipment from interrupting a residents call.
Handset Interrupt
signals the system host to
drop the call in progress when the resident picks-
up an extension phone. This feature permits the
resident to interrupt the call in case of emergency.
Caller ID permits the host to
identify incoming calls and
answer only those from
designated call centers.
T1
Features
* Small Size: 2.0" by 0.5" by 0.4" thick;
* Supports data transfer at 33,600 bps;
* FCC Part 68 Compliant;
* Ring Detection;
* Continuous Connect Detect Monitor;
* Handset Interrupt Monitor
* Single +5 Volt Power Supply;
* Hookswitch Control
* Caller ID Signal Path (XE0020C)
Models
XE0020: includes ring detect , hookswitch,
Handset Interrupt, Connect Detect, telephone
line transformer, loop current holding circuit;
XE0020C: XE0020 features plus Caller ID signal
pass through;
Block Diagram
Caller ID
(optional)
TIP
Line
Transformer
Loop
Current
Holding
Circuit
Together these features give
residents priority use of the
telephone line without shutting
out the equipment.
T2
RING
OH
Hook-
Switch
Ring
Detect
Line
Voltage
Monitor
RI
HInt
CD
XECOM
XE0020

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