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FXS ports delivered clear analog voice quality.
NM-HDA-4FXS
High density analog voice/fax network module with 4 FXS Cisc...
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Name:
NM-HDA-4FXS
- Description:
- High density analog voice/fax network module with 4 FXS Cisco Router Network Module
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 746320707334
- Condition:
- Warranty:
- 3
- List Price:
$1,800.00
- Price:
$867.0051.8% off
Quantity:
1
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NM-HDA-4FXS Overview
NM-HDA-4FXS is a high-performance FXS voice interface module designed for seamless analog telephony connectivity in enterprise communication systems. Engineered for robust performance, this module features industry-standard RJ-11 connectors and a modular form factor, making it a perfect match for Cisco voice gateways and analog PBX systems while ensuring reliable caller ID support, loop start signaling, and battery feed functionality.
Optimized for modern installations, NM-HDA-4FXS operates reliably in environments ranging from 0 to 70°C, ensuring durability and consistent performance under demanding conditions. Its design not only simplifies integration into existing networks but also makes it an excellent choice for expanding analog voice capacity and upgrading legacy telephony infrastructure with proven, high-quality technology.
NM-HDA-4FXS price is $867.00, a 51.8% saving from the Cisco list price of $1,800.00. NM-HDA-4FXS is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NM-HDA-4FXS for additional pricing. Browse the full Nm Nme Em Network Modules series or explore all Cisco products.
NM-HDA-4FXS Specifications
- Product Type
- Voice Interface Module
- Module Type
- FXS Module
- Data Rate
- N/A
- Connector Type
- RJ-11
- Supported Protocols
- Analog Telephony
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 5V
- Compatibility
- Cisco Voice Gateways, Analog PBX Systems
- Max Speed
- N/A
- Supported Features
- Caller ID, Loop Start, Battery Feed
- Power Consumption
- 5W
- Interface Ports
- FXS
- Expansion Slots
- N/A
- Product Name
- NM-HDA-4FXS
- Height
- 1.0 inches
- Width
- 4.0 inches
- Depth
- 6.0 inches
- Weight
- 0.5 lbs
NM-HDA-4FXS Use Case
Centralized Analog Fax Integration for Retail Chain Compliance
A national retail chain uses the Cisco ISR 4000 series with the NM-HDA-4FXS high-density analog voice/fax network module to consolidate legacy in-store fax machines onto the corporate WAN. By terminating four FXS ports per module directly on-site, stores maintain PCI-DSS compliance for credit-card transaction faxes, eliminate standalone fax servers, and achieve secure, end-to-end encryption and centralized management—reducing hardware costs by 30% and simplifying regulatory audits.
Secure Patient Data Fax and Voice for Healthcare Clinics
A multi-location healthcare provider deploys Cisco routers equipped with NM-HDA-4FXS modules to connect analog fax machines and nurse-call phones over its MPLS backbone. The high-density 4-port FXS interface ensures HIPAA-compliant transmission of sensitive patient records and real-time voice paging. This unified network approach delivers 99.99% uptime, centralized provisioning, and a 40% reduction in monthly telecom expenses by retiring disparate TDM circuits.
Scalable Multi-Site Analog Voice Connectivity in Manufacturing
A global manufacturing firm integrates shop-floor operator consoles, analog alarms, and legacy fax devices using Cisco ISR 4000 routers with NM-HDA-4FXS modules at each plant location. Four FXS ports per module enable high-density analog port consolidation directly into the enterprise IP network. The outcome is streamlined provisioning via Cisco Prime, a 50% reduction in analog trunks, and improved operational visibility with end-to-end QoS monitoring across 20+ sites.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 NM-HDA-4FXS |  NME-AIR-WLC8-K9 |  NME-XD-48ES-2S-P |  NACNM-50-K9 |  NACNM-100-K9 | |
|---|---|---|---|---|---|
| Product Type | Voice Interface Module | Wireless LAN Controller | Network Module | Network Card | Network Module / Network Card |
| Module Type | FXS Module | Wireless LAN Controller | Ethernet | Ethernet | Ethernet |
| Data Rate | N/A | N/A | 10Gbps | 10G | 100G |
| Connector Type | RJ-11 | N/A | SFP+ | SFP+ | SFP28 |
| Supported Protocols | Analog Telephony | TCP/IP | TCP/IP, iSCSI | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 5V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco Voice Gateways, Analog PBX Systems | Cisco | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | N/A | N/A | 10Gbps | 10Gbps | 100Gbps |
| Supported Features | Caller ID, Loop Start, Battery Feed | QoS, Advanced Security, Network Management | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | 5W | N/A | 8W | N/A | 20W |
| Interface Ports | FXS | N/A | Ethernet | SFP+ | SFP28 |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | NM-HDA-4FXS | NME-AIR-WLC8-K9 | NME-XD-48ES-2S-P | NACNM-50-K9 | NACNM-100-K9 Network Interface Module |
| Height | 1.0 inches | N/A | 1.5 inches | N/A | N/A |
| Width | 4.0 inches | N/A | 3.7 inches | N/A | N/A |
| Depth | 6.0 inches | N/A | 0.5 inches | N/A | N/A |
| Weight | 0.5 lbs | N/A | 0.4 lbs | N/A | N/A |
Reviews & Ratings
I
Iram Javed
4
Good density module for voice gateways.
S
Stefan Novak
5
No noise or call drops observed.
L
Laura Chen
3
Integrated easily with our router.
K
Kamran Yousuf
4
Satisfied with voice performance.
Questions & Answers
What is the Cisco NM-HDA-4FXS network module?
The Cisco NM-HDA-4FXS is a high-density analog voice/fax network module that provides four FXS ports for connecting analog phones and fax machines to a Cisco router.
Which Cisco routers are compatible with the NM-HDA-4FXS module?
The NM-HDA-4FXS is supported on Cisco ISR G2 and Cisco ISR 4000 Series routers, including models 2911, 2951, 3925, 3945, 4321, 4331, 4351, 4431, and 4451.
How many FXS ports does the NM-HDA-4FXS provide?
The Cisco NM-HDA-4FXS offers four FXS ports, each supporting a single analog voice or fax endpoint.
Can the NM-HDA-4FXS handle both voice and fax traffic simultaneously?
Yes. Each FXS port on the NM-HDA-4FXS supports both analog voice calls and T.38 fax pass-through independently.