Data Sheet
© 2010-2013 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 9
Product Specifications
FXS Loop Resistance Up to 600 Ohms (including the phone or terminal equipment)
FXS On-Hook Voltage -44V
FXS Ringing Tone The ringing tone is configurable for different country requirements
FXS Ringing Voltage 40 Vrms at 5 REN at 25 Hz (configurable frequency)
FXS Ringing Frequencies 25 Hz, 50 Hz
Tone Disconnect
Supervision
Call disconnect on progress tone of less than 600 Hz
Battery Polarity Reversal
Detection
Detection of disconnect supervision and far-end answer supervision via battery polarity reversal
Power Interrupt
Disconnect
Call disconnect on power interrupt of >600 ms
Homologation
The High-Density Analog and Digital Extension Module for Voice and Fax is approved for the countries listed in
Table 11 for off-premises (DID and FXO) and on-premises (FXS and BRI) connections. Approval for other countries
is in progress. Refer to the following Cisco Telecom Approvals Website for approval progress for other countries:
http://tools.cisco.com/cse/prdapp/jsp/externalsearch.do?action=externalsearch&page=EXTERNAL_SEARCH
Table 10. Telecom Approvals-(approvals in progress for other countries)
EVM-HD-8FXS/DID EM3-HDA-8FXS/DID EM-4BRI-NT/TE EM-HDA-6FXO EM-HDA-3FXS/4FXO
United States United States United States United States United States
Canada Canada Canada Canada Canada
CE countries CE countries CE countries CE countries CE countries
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Australia Australia Australia Australia Australia
Japan Japan Japan Japan Japan
New Zealand
Singapore
Bulgaria
Israel
South Korea
China
Ordering Information
To place an order, visit the Cisco Ordering Home Page. Table 12 gives ordering information for the Cisco High-
Density Extension Module.
Table 11. Ordering Information
Product Number Description
EVM-HD-8FXS/DID High density voice/fax extension module-8 FXS/DID
EM3-HDA-8FXS/DID 8-port voice/fax expansion module-FXS/DID
EM-4BRI-NT/TE 4-port voice/fax expansion module-BRI (NT and TE)
EM-HDA-6FXO 6-port voice/fax expansion module-FXO
EM-HDA-3FXS/4FXO 7-port voice/fax expansion module-3FXS/4FXO
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The CE mark is recognized in the following countries: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Gibraltar, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxemburg, Malta, Monaco,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and United Kingdom.
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