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Cisco Interface Module 4-port Serial – expansion module – 4 ports – NM-4A/S=

Fast turnaround times

20 + Years of Experience

NM-4A/S=
Cisco

NM-4A/S=

The Cisco NM-4A/S= is a 4-port Serial Interface Module designed to expand the capabilities of compatible Cisco routers. This expansion module provides support for up to four serial connections, enabling routers to interface with a range of serial-based WAN technologies and infrastructures. It offers users a flexible, scalable solution for connecting various WAN networking equipment to their Cisco router. Each of the four ports is highly configurable, supporting multiple data link layer protocols, including HDLC and PPP.

The module is designed for use with Cisco networking equipment, and it fits into available network module slots on supported routers. This allows administrators to enhance their network capacity without needing to upgrade to entirely new router hardware. The four ports on the module support options like asynchronous and synchronous serial connections, making the NM-4A/S= suitable for a variety of WAN deployments, including Frame Relay, X.25, and leased line setups.

The Cisco NM-4A/S= is ideal for networks requiring the use of high-speed serial communications where multiple serial ports are necessary. Network administrators can deploy this module to connect routers to telecommunications equipment, support legacy infrastructure, or consolidate multiple connections onto a single router. It provides a cost-effective method for adding additional ports while maintaining reliability and performance across the network. Overall, the NM-4A/S= is a robust solution for organisations needing to maximise connectivity through serial WAN links on their existing infrastructure.

Professional services and support for NM-4A/S=

EOL Technology Services offers expert support, professional services, and replacement parts for the Cisco NM-4A/S=. Whether you need assistance with installation, configuration, or acquiring replacement modules, our team ensures your networking hardware stays operational, minimising downtime and keeping your infrastructure running efficiently.

Your Questions, Answered

In most cases yes, we offer next-day delivery for most in-stock items across the UK. If NM-4A/S= is not readily available, we will give an approximate delivery ETA.

In addition to NM-4A/S= we have access to a huge range of IT parts and spares, including processors, memory modules, storage drives, power supplies, and cooling components, sourced from trusted manufacturers and partners.

We can ship NM-4A/S= to most places in the world, but due to regulations and laws there are some countries we cannot ship to. Please contact a member of the team to see if we can ship to your location.

Yes, we provide comprehensive maintenance and upgrade services to ensure your IT systems remain up to date and fully operational. From routine checks to part replacements.

Yes, if it isn't the right fit, our team can assist you in identifying the right parts that are fully compatible with your existing hardware.

We can offer a range of payment options, including upfront payment, net payment terms if approved, and bespoke agreements tailored to your requirements.

Next steps

Request a quote

Don't let hardware limitations hold you back!

Contact us for a custom quote, or to check availability at any time using the contact form.

0203 2870 911

To find out more about EOL technology services, or to get a quotation for your requirements, contact us today.

Email us

EOL are a vendor-independent IT services and hardware reseller. We specialise in cutting costs through third party maintenance services.
Quote for Support / Maintenance?
Next steps

Request a quote

Don't let hardware limitations hold you back!

Contact us for a custom quote, or to check availability at any time using the contact form.
Quote for Support / Maintenance?

0203 2870 911

To find out more about EOL technology services, or to get a quotation for your requirements, contact us today.

Email us

EOL are a vendor-independent IT services and hardware reseller. We specialise in cutting costs through third party maintenance services.
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