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EM-HDA-3FXS/4FXO
- Description:
- 7-port voice/fax expansion module - 3FXS/4FXO Cisco Router Network Module
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EM-HDA-3FXS/4FXO
7-port voice/fax expansion module - 3FXS/4FXO Cisc...
$1,645.00
$627.00
26 in Global Warehouse
$627.00
62% off
TRUSTED, TRIED, PROVEN
EM-HDA-3FXS/4FXO Overview
EM-HDA-3FXS/4FXO is a high-performance telephony interface module that integrates both FXS and FXO ports for seamless analog voice connectivity. This module provides three FXS ports for directly connecting analog telephones and four FXO ports for interfacing with external telephone lines, making it ideal for enterprises looking to consolidate their voice and data infrastructures in one solution.
Designed for compatibility with unified communications platforms and VoIP gateways, the EM-HDA-3FXS/4FXO features RJ11 connectors and a modular form factor that allows for flexible installation in a variety of network environments. Offering essential features such as echo cancellation and caller ID delivery, this analog interface module is engineered to support mission-critical voice applications while meeting stringent operating and storage temperature requirements.
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EM-HDA-3FXS/4FXO Specifications
| Product Type | Telephony Interface Module |
| Module Type | Analog FXS/FXO Module |
| Data Rate | N/A |
| Connector Type | RJ11 |
| Supported Protocols | Analog Telephony Signaling |
| Form Factor | Modular |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 48V DC |
| Compatibility | Unified Communications Platforms / VoIP Gateways |
| Max Speed | N/A |
| Supported Features | Simultaneous 3 FXS & 4 FXO interfaces, echo cancellation, caller ID detection |
| Power Consumption | 5W |
| Interface Ports | FXS / FXO |
| Expansion Slots | N/A |
| Product Name | EM-HDA-3FXS/4FXO |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
EM-HDA-3FXS/4FXO Use Case
Remote Branch Analog Telephony Integration with EM-HDA-3FXS/4FXO
A retail chain deploys the EM-HDA-3FXS/4FXO-7-port voice/fax expansion module on Cisco ISR routers at remote outlets to connect existing analog phones and fax machines directly to the VoIP network. This delivers seamless voice and fax services over WAN, reduces PSTN line costs by 30%, and ensures local survivability during central site outages.
Secure Healthcare Fax Consolidation via Cisco EM-HDA-3FXS/4FXO Module
A multi-site healthcare provider installs the 3FXS/4FXO expansion module in Cisco routers to aggregate analog fax traffic from clinics into a centralized, HIPAA-compliant fax server. This streamlines document workflows, enhances data security, and cuts per-page faxing expenses by 40% while maintaining regulatory compliance.
Business Continuity Voice Failover with Cisco 3FXS/4FXO Expansion Module
A financial services firm integrates the EM-HDA-3FXS/4FXO module into its Cisco router to provide automatic PSTN fallback for critical voice lines during IP network failures. This solution guarantees 99.9% uptime for trader communications, minimizes revenue impact from service disruptions, and supports rapid failover without additional hardware.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Unified Communications Platforms / VoIP Gateways | IP-PBX / SIP Gateway / Unified Communications | Cisco / Avaya | N/A | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | RJ11 | FXO | RJ-11 | RJ-48 | SFP+ |
| Data Rate | N/A | N/A | N/A | 1.544 Mbps / 2.048 Mbps | 10Gbps |
| Depth | N/A | N/A | N/A | N/A | 0.7 inches |
| Expansion Slots | N/A | N/A | N/A | NIM | N/A |
| Form Factor | Modular | Modular | Modular | Modular | PCIe |
| Height | N/A | N/A | 1.73 inches | N/A | 0.5 inches |
| Input Voltage | 48V DC | 5V | 5V | 3.3V | 3.3V |
| Interface Ports | FXS / FXO | 6 FXO Ports | FXS | N/A | SFP+ |
| Max Speed | N/A | N/A | N/A | N/A | 10Gbps |
| Module Type | Analog FXS/FXO Module | FXO | FXS | WAN | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 5W | N/A | 10W | N/A | 15W |
| Product Name | EM-HDA-3FXS/4FXO | EM-HDA-6FXO | EM-HDA-8FXS | NM-HDV2-1T1/E1 | NME-NAC-K9 Network Access Card |
| Product Type | Telephony Interface Module | Telephony Interface Module | Telephony Interface Module | Network Module | Network Module / Network Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Simultaneous 3 FXS & 4 FXO interfaces, echo cancellation, caller ID detection | FXO Signaling / Caller ID / Call Waiting | Caller ID, Call Waiting, Conference Calling | N/A | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Supported Protocols | Analog Telephony Signaling | PSTN / VoIP | SIP / SS7 | N/A | TCP/IP |
| Weight | N/A | N/A | 0.5 lbs | N/A | 0.9 lbs |
| Width | N/A | N/A | 3.44 inches | N/A | 3.6 inches |
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Questions & Answers
Q
What is the Cisco EM-HDA-3FXS/4FXO module?
A
The EM-HDA-3FXS/4FXO is a 7-port voice/fax expansion module for Cisco routers, offering 3 FXS and 4 FXO ports for analog PBX, PSTN and fax integration.
Q
Which Cisco routers support the EM-HDA-3FXS/4FXO module?
A
This module is supported on Cisco ISR G2 and G3 platforms, including the 2800, 2900, 3800 and 3900 series routers with a high-density voice slot.
Q
What do FXS and FXO ports do on this module?
A
FXS ports deliver dial tone to analog devices (phones/faxes), while FXO ports connect the router to a PSTN line or analog PBX trunk.
Q
How many concurrent voice calls can it handle?
A
This module can handle up to 7 simultaneous analog voice or fax calls, limited by router DSP resources and IOS configuration.
Q
Does EM-HDA-3FXS/4FXO support fax transmission?
A
Yes. The module supports fax pass-through in pass-band and T.38 real-time fax relay when paired with a T.38-enabled Cisco IOS image.
Q
Which voice protocols are supported?
A
Supported protocols include MGCP, H.323 and SIP. Protocol support depends on the installed Cisco IOS feature set.
Q
Do I need an additional license for voice features?
A
Yes. You must install the Cisco Unified Communications or Enhanced Services license for full voice and fax feature activation.
Q
How do I install the EM-HDA-3FXS/4FXO module?
A
Power down the router, slide the module into the high-density voice slot until it clicks, then secure and power up. Follow the Cisco hardware installation guide.
Q
Is the module hot-swappable?
A
No. To prevent service disruption, you must power down the router before installing or removing the EM-HDA-3FXS/4FXO module.
Q
What power resources are required?
A
The module draws up to 10 W from the router’s internal power supply; ensure your router PSU supports the additional load.
Q
Which analog codecs does it support?
A
It supports G.711μ-law/A-law for high-quality voice and G.729a for bandwidth-efficient calls, subject to DSP capacity.
Q
Can I configure caller ID on FXS ports?
A
Yes. Caller ID name and number delivery is supported using Bellcore, ETSI and DTMF-based signaling on FXS ports.
Q
What Cisco IOS version is recommended?
A
Use Cisco IOS 15.2(4)M or later with the enhanced failover and fax relay features enabled for optimal performance.
Q
How do I configure dial peers for this module?
A
Define POTS dial peers in global configuration: specify session target, port type (FXS/FXO), port number, and codec, then apply dial-peer commands.
Q
What warranty covers the EM-HDA-3FXS/4FXO module?
A
This Cisco module is covered by a 90-day limited hardware warranty, extendable with Cisco SMARTnet support contracts.
Q
Where can I buy genuine EM-HDA-3FXS/4FXO modules?
A
Authorized Cisco partners, the Cisco online store and certified resellers offer genuine modules with full warranty and support.
