Cisco ASR1004-20G-SEC/K9 - ASR 1004 VPN+FW Bundle Router Manual de usuario Pagina 85

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Analog and ISDN Basic Rate Voice Network Modules continued
Product
Description
Supported Platforms
and Minimum Cisco
IOS Versions
Comments
EM-HDA-3FXS/4FXO
Three-port FXS and
Four-port FXO Voice and
Fax Expansion Modules
Provides on-premises
FXS signaling to connect
directly to a standard
telephone, fax machine, or
similar device and supplies
ring, voltage, and dial tone
In addition, the FXO ports
provide off-premises
connection to the central
ofce Use with the Cisco
High-Density Extension
Module (EVM-HD-8FXS/
DID) baseboard
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
28 51–12 3 (8)T4
28 21–12 3 (8)T4
Requires a Cisco
high-density analog and
digital extension module
(EVM-HD-8FXS/DID)
Requires voice feature set
EM-HDA-6FXO
Six-port FXO Voice and Fax
Expansion Module
Provides off-premises
connection to the central
ofce This module
supports FXO power
failover If power to the
router fails, this feature
helps enable a direct
metallic path between an
FXO port and a special
“red” telephone to provide
a direct line to the PSTN
Use with the Cisco
High-Density Extension
Module (EVM-HD-8FXS/
DID) baseboard
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
28 51–12 3 (8)T4
28 21–12 3 (8)T4
Requires a Cisco
high-density analog and
digital extension module
(EVM-HD-8FXS/DID)
Requires voice feature set
Cisco Voice Network Modules
T1/E1 Digital Voice Network Modules
Product
Description
Supported Platforms
and Minimum Cisco
IOS Versions
Comments
EM-HDA-4FXO
Four-port Voice/Fax
Expansion Module – FXO
Provides four off-premise
analog connections to
the central ofce Country
settings are congurable
Includes support for
battery polarity reversal
detection and Caller ID
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and
28 51–12 3 (8)T4
Requires Cisco IP voice
feature set and higher
Requires a high-density
analog voice/fax network
module (NM-HDA-4FXS)
EM-HDA-8FXS
Eight-port Voice/Fax
Expansion Module – FXS
Provides an additional eight
FXS ports for connections
directly to analog phones,
fax machines, and key
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and
28 51–12 3 (8)T4
123 Mainline and forward
supported in IP Voice
feature set
Requires a high-density
analog voice/fax network
module (NM-HDA-4FXS)
or a Cisco high-density
analog and digital
extension module
(EVM-HD-8FXS/DID)
DSP-HDA-16
16-channel DSP Module for
NM-HDA
Enables an additional eight
high-complexity or 16
medium-complexity voice
calls on NM-HDA
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and
28 51–12 3 (8)T4
123 Mainline and forward
supported in IP Voice
feature set
Requires a high-density
analog voice/fax network
module (NM-HDA-4FXS)
EM2-HDA-4FXO
Four-port Voice/Fax
Expansion Module – FXO
Provides four off-premise
analog connections to
the central ofce Country
settings are congurable
Includes support for
battery polarity reversal
detection and Caller
ID Compared to the
EM-HDA-4FXO, this module
delivers longer loop length
support and improved
performance against poor
line conditions when used
in GroundStart signaling
mode
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(14)T
2811, 2821, and
28 51–12 3 (14)T
Requires Cisco IP voice
feature set and higher
Requires a high-density
analog voice/fax network
module (NM-HDA-4FXS)
Cisco Voice Network Modules
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