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NM-16A
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16 port Asynchronous Module Cisco Router Network Module
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Name:
NM-16A
- Description:
- 16 port Asynchronous Module Cisco Router Network Module
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 4063403263072
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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NM-16A Overview
NM-16A is a high-performance Ethernet network module engineered to deliver reliable 10Gbps data rates via an SFP+ connector. It is designed for seamless integration into PCIe-equipped servers, routers, and switches, providing robust support for TCP/IP protocols while ensuring efficient connectivity in modern network environments.
This NM-16A module is ideally suited for expanding data center capacity and upgrading network interfaces with its compact, modular design and advanced features such as auto-negotiation, jumbo frames, and quality of service (QoS). Its official specifications promote compatibility with major vendors including Cisco, Juniper, Dell, and HP, ensuring a versatile solution for high-speed networking needs.
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NM-16A Specifications
- Product Type
- Network Module / Network Card
- Brand
- Cisco
- Module Type
- Ethernet
- Data Rate
- 10G
- Connector Type
- SFP+
- Supported Protocols
- TCP/IP
- Form Factor
- PCIe
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Dell / HP
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation, Jumbo Frames, QoS
- Power Consumption
- 5W
- Interface Ports
- Ethernet
- Product Name
- NM-16A High-Performance 10Gb Ethernet Module
NM-16A Use Case
Out-of-Band Management for Enterprise Network Resilience
In a global enterprise with distributed data centers, IT teams deploy the NM-16A 16-port Asynchronous Module on Cisco routers to establish dedicated modem links for out-of-band (OOB) access. When primary IP paths fail, administrators maintain secure, uninterrupted control via asynchronous serial lines—ensuring faster mean-time-to-repair (MTTR), higher network availability, and compliance with enterprise SLAs.
Legacy Device Integration in Industrial IoT Environments
A manufacturing plant leverages the Cisco NM-16A 16-port Asynchronous Module to connect legacy PLCs and serial-based sensors directly to its core network. This modular approach preserves existing automation assets, accelerates IIoT integration, and reduces CapEx by eliminating expensive protocol converters—delivering seamless data flow, centralized monitoring, and improved operational efficiency.
SCADA and Telemetry Data Aggregation for Utility Networks
A regional utility company uses Cisco routers equipped with the NM-16A Asynchronous Module to aggregate serial telemetry from remote RTUs and SCADA endpoints. By consolidating up to 16 asynchronous links on a single chassis, operations teams achieve real-time monitoring, faster fault detection, and secure data transport over MPLS—optimizing grid reliability and reducing maintenance costs.
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Product Comparison Table 
| NM-16A |  EM-4BRI-NT/TE |  NM-1A-OC3-POM |  NM-4B-S/T |  NM-CEM-4SER | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module |
| Module Type | Ethernet | Ethernet | WAN Module | Ethernet | Ethernet |
| Connector Type | SFP+ | SFP+ | SFP | RJ-45 | SFP+ |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP | TCP/IP, UDP | TCP/IP, iSCSI |
| Form Factor | PCIe | Modular | Modular | 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 | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Routers, Switches, Servers | Cisco, Juniper, Dell, HP |
| Interface Ports | Ethernet | Ethernet | SFP | Ethernet | SFP+ |
| Product Name | NM-16A High-Performance 10Gb Ethernet Module | EM-4BRI-NT/TE | NM-1A-OC3-POM | NM-4B-S/T | NM-CEM-4SER |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
T
Trevor Hayes
5
Async module provided excellent port density.
S
Sumbul Naqvi
4
Stable performance across all connections.
I
Igor Petrov
4
Reliable for terminal server applications.
J
Janice Bloom
5
Easy installation and management.
W
Waqas Siddiq
4
Met expectations fully.
Questions & Answers
What is the Cisco NM-16A 16-Port Asynchronous Module?
The Cisco NM-16A is a network module that adds 16 asynchronous serial ports to supported Cisco routers for legacy dial-up and WAN connectivity.
Which Cisco routers are compatible with the NM-16A?
The NM-16A is compatible with Cisco 2600, 3600, 3700, 3800 and many Integrated Services Routers (ISR) running the appropriate IOS.
What data rates does the NM-16A support per port?
Each asynchronous port on the NM-16A supports data rates from 50 bps up to 230.4 Kbps, depending on cable and line conditions.
What serial protocols does the NM-16A support?
The module supports HDLC, PPP, Frame Relay, X.25, V.120 and V.110 encapsulations, plus hardware flow control (RTS/CTS) and software flow control (XON/XOFF).
Which Cisco IOS versions support the NM-16A?
The NM-16A is supported on Cisco IOS 12.2(5)T and later releases; verify feature images for legacy asynchronous support.
How do I install the NM-16A in my router?
Power down the router, slide the NM-16A into an available network module bay until fully seated, secure the retaining screw, then power on.
Is the NM-16A hot-swappable?
No. The Cisco NM-16A requires the router to be powered down before insertion or removal to protect hardware integrity.
How do I configure asynchronous ports on the NM-16A?
Use global configuration mode: interface asynchronous 0/0 – 0/15, set encapsulation, clocking, dialer or IP addressing, then no shutdown.
Can the NM-16A function as DTE and DCE?
Yes. It supports both DTE and DCE roles via cable-selectable pinouts; configure clocking on DCE ends and disable on DTE ends.
How can I monitor port status on the NM-16A?
Use IOS commands such as show controllers async and show interface asynchronous 0/x to view line status, errors and throughput.
What is the power consumption of the NM-16A?
The module consumes approximately 10 watts under full load, subject to IOS features and environmental conditions.
What are the physical dimensions of the NM-16A?
The NM-16A measures 7.5” (19.05 cm) wide, 6.7” (17.02 cm) deep and 0.5” (1.27 cm) high, weighing approximately 0.9 lbs (0.4 kg).
What operating environment does the NM-16A require?
Operating temperature: 0°C to 40°C; humidity: 10% to 85% non-condensing. Comply with Cisco router environmental guidelines.
Is the NM-16A covered by Cisco’s warranty?
Yes. The NM-16A is backed by Cisco’s limited 90-day hardware warranty and Cisco Technical Support under service contracts.
What are common use cases for the NM-16A?
Typical use cases include remote branch access, legacy modem networks, dial-in authentication servers and asynchronous WAN links.