Datasheet

Data Sheet
© 2010-2013 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 5 of 9
Feature Benefit
ITU Standard Codecs such
as G.729, G.729A/B, and
G.711
These standards-based compression technologies allow transmission of voice across IP. G.711 is standard 64-kbps
PCM modulation using either mu-law or a-law. For a complete list of codecs supported, refer to Table 3.
Silence Suppression and
Voice Activity Detection
Bandwidth is used only when someone is speaking. During silent periods of a phone call (approximately 50 percent of
the time), bandwidth is available for other traffic.
Comfort Noise Generation To better simulate phone calls over voice networks, this feature reassures the phone user that the connection is being
maintained, even when no voice packets are being transmitted.
Dial-Plan Mapping Automatic mapping of dialed VoIP phone numbers to IP addresses simplifies configuration and management.
Dual Tone Multifrequency
(DTMF) Tone Processing
This feature helps enable access to voice mail and interactive-voice-response (IVR) systems.
Fax and Modem Pass-
Through
This feature allows fax and modem traffic to pass through a voice port.
Fax Relay Fax relay provides a more robust protocol for fax transmission over packet networks. It includes support for T.38 and
T.37 fax protocols.
Country-Specific Signaling This feature transparently delivers customary phone signals to users, facilitating acceptance of new technology.
Autocalling and Private-Line
Automatic Ring-Down
(PLAR)
With this feature, a destination phone can be configured to automatically ring when the caller lifts the handset.
Hunt groups Calls can be forwarded automatically to the first available line.
Battery Polarity Reversal
Detection and Initiation
Detection of disconnect supervision and far-end answer supervision through battery polarity reversal provides a robust
method of providing supervisory disconnect, especially for loop-start signaling on FXS and FXO interfaces.
Supervisory Disconnect Signaling protocols such as loop start do not provide means for quickly detecting when the call initiation is terminated
prior to call connection. Supervisory disconnect quickly makes this determination and frees valuable resources for
other calls.
Product Specifications
Table 5 gives specifications of the 8-port FXS and DID High-Density Extension Module baseboard.
Table 5. Specifications of 8-Port FXS and DID Voice and Fax Extension Module Baseboard
Product Specifications
Part number EVM-HD-8FXS/DID
Software Compatibility Cisco IOS Software Release 12.3(8)T4 or later
Memory Requirements Refer to the Cisco IOS Software release notes to determine minimum Flash and system memory requirements.
EMC Compliance FCC Class A device, CE Class A
Safety Conformance UL 60950, EN 60950, AS/NZS60950, IEC 60950
Network Equipment
Building System (NEBS)
Compliance
●
Designed for NEBS Level 3: GR-63 and GR-1089, Type 1/3.
●
Formal NEBS certification testing in progress; compliance results will be published upon completion
Physical Connector One RJ-21 connector
RJ-21 Distribution Panel
●
MENTION OF NON-CISCO PRODUCTS OR SERVICES IS FOR INFORMATION PURPOSES ONLY AND
CONSTITUTES NEITHER AN ENDORSEMENT NOR A RECOMMENDATION.
●
Distribution panels are generally available from multiple cable and network adaptor vendors. Customers may, at
their sole discretion, consider using a patch panel from Black Box Corporation. The Black Box patch panel
accommodates RJ-11 and RJ-45 combinations and offers flexibility for expansion module upgrades (analog or
digital). The Black Box patch panel is available direct from the manufacturer or from several national resellers and
distributors.
●
Black Box Corporation:
http://blackbox.com/
●
Technical support and ordering: 724 746-5500
●
Black Box part number: JPM2194A
●
Description: Distribution Panel for Cisco High Density Analog and Digital Extension Module for Voice and Fax (EVM-
HD)
Spare The spare part number is EVM-HD-8FXS/DID=.
Expansion Modules The Cisco High-Density Extension Module baseboard supports 0, 1 or 2 expansion modules in any combination
DSP Resources PVDM2s provide central DSP resources for the Cisco High-Density Extension Module baseboard and its expansion
modules. PVDM2s are purchased separately and installed in the DSP module slots located inside the Cisco 2821,
Cisco 2851, Cisco 3825, and Cisco 3845 integrated services routers.