Cisco Systems 850, 870 manual T1/E1 Digital Voice Network Modules

Cisco Network Modules

Analog and ISDN Basic Rate Voice Network Modules continued

		Supported Platforms
		and Minimum Cisco	Comments
Product	Description	IOS Versions

Cisco Network Modules

T1/E1 Digital Voice Network Modules

		Supported Platforms
		and Minimum Cisco	Comments
Product	Description	IOS Versions

EM-HDA-6FXO	Provides off-premises	3800 Series–12..3(11)T	Requires a Cisco high-
Six-port FXO Voice and Fax	connection to the central	2851–12..3(8)T4	density analog and digital
	office.. This module	2821–12..3(8)T4	extension module
Expansion Module
	supports FXO power		(EVM-HD-8FXS/DID)..
	failover.. If power to the		Requires voice feature set..
	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..

EM-HDA-4FXO

Four-port Voice/Fax Expansion Module – FXO

Provides four off-premise analog connections to the central office.. Country settings are configurable.. 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 2851– 12..3(8)T4

Requires Cisco IP voice feature set and higher..

Requires a high-density analog voice/fax network module (NM-HDA-4FXS)..

Modular Router Solutions

Voice and Fax Integration

EM2-HDA-4FXO

Four-port Voice/Fax Expansion Module – FXO

Provides four off-premise analog connections to the central office.. Country settings are configurable.. Includes support for battery polarity reversal detection and Caller ID.. Compared to the EM-HDA- 4FXO, this module delivers longer loop length support

3800 Series–12..3(14)T

2811, 2821, and 2851– 12..3(14)T

Requires Cisco IP voice feature set and higher..

Requires a high-density analog voice/fax network module (NM-HDA-4FXS)..

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 office.. Use with the Cisco High-Density Extension Module (EVM-HD-8FXS/

3800 Series–12..3(11)T 2851–12..3(8)T4 2821–12..3(8)T4

Requires a Cisco high- density analog and digital extension module (EVM-HD-8FXS/DID)..

Requires voice feature set..

and improved performance against poor line conditions when used in GroundStart signaling mode..

Modular Router Solutions

Voice and Fax Integration

DID) baseboard..

Modular Router Solutions

Voice and Fax Integration

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 2851– 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	Enables an additional eight	3800 Series–12..3(11)T	12..3 Mainline and forward
16-channel DSP Module	high-complexity or 16	2811, 2821, and 2851–	supported in IP Voice
	medium-complexity voice	12..3(8)T4	feature set..
for NM-HDA
	calls on NM-HDA..		Requires a high-density
	Modular Router Solutions		analog voice/fax network
			module (NM-HDA-4FXS)..
	Voice and Fax Integration

144 145