Cisco AS2511-RJ 16 Ports Router
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Cisco AS2511-RJ 2511-RJ 16-Ports Access Router Refurbished

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Part Number#: AS2511-RJ
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Short Description:
AS2511-RJ 2500 Series 16-Ports Asynchronous Universal Router Access Server | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

More Information on the 2500 Series

The Cisco AS2511-RJ is part of the 2500 Series, known for its remarkable features in the realm of networking. In this comprehensive guide, we will delve into the specifics of the AS2511-RJ, focusing on its purpose, key features, benefits, and how it can be a valuable asset in your network infrastructure.

Cisco AS2511-RJ

The Cisco AS2511-RJ is a 16-port asynchronous universal router access server. It plays a crucial role in network management and connectivity. Let's break down its essential components and functions:

Hardware Specifications

  • 16 Ports: The AS2511-RJ offers 16 asynchronous ports, making it suitable for connecting various devices, such as modems, terminals, or other networking equipment.
  • Rack-Mountable: This router is designed to be mounted in a standard 19-inch rack, allowing for efficient use of space in your network setup.
  • Built to Last: Cisco is renowned for its robust and durable hardware. The AS2511-RJ is no exception, ensuring long-term reliability in your network infrastructure.
  • Multiple Interface Types: It provides various interfaces for connection, including RJ45 ports for Ethernet and RJ45 connectors for asynchronous devices.


  • Universal Access: As an access server, the AS2511-RJ is a hub for connecting remote devices to your network. It can be used to manage and control a wide range of equipment, providing access to them from a central location.
  • 16-Port Capability: With 16 asynchronous ports, this router can handle multiple connections simultaneously. It's ideal for scenarios where you need to manage numerous devices, such as in a data center or a large-scale network.
  • Secure Connections: Cisco devices are known for their security features. The AS2511-RJ is no different, ensuring that your network connections remain secure and protected.
  • Modem Pooling: This router can be used to create a modem pool, allowing multiple remote users to connect via dial-up modems. This can be particularly useful for remote access and troubleshooting.

Benefits of Using the Cisco AS2511-RJ

Now that we've explored the hardware and functionality of the AS2511-RJ, let's take a look at the benefits it brings to your network infrastructure:

  • Efficient Network Management: With 16 ports, you can efficiently manage and troubleshoot a variety of devices from a single location. This can significantly reduce the time and effort required for network maintenance.
  • Cost-Effective: Instead of investing in multiple routers or access servers, the AS2511-RJ consolidates your connectivity needs, potentially saving on equipment costs.
  • Enhanced Security: Cisco is renowned for its security features. By using the AS2511-RJ, you can be confident that your network connections are well-protected.
  • Remote Access: This router allows for remote access to your network, making it an excellent choice for scenarios where remote troubleshooting or device management is required.
  • Reliability: Cisco's reputation for durable and dependable hardware extends to the AS2511-RJ, ensuring that it can serve your network for years to come.

Use Cases The AS2511-RJ

  • Data Centers: In a data center environment, where numerous devices need to be managed and accessed remotely, the AS2511-RJ's 16 ports can be invaluable.
  • Remote Offices: If you have remote offices or branches that require connectivity and management from a central location, this router is an excellent choice.
  • Internet Service Providers: ISPs can use the AS2511-RJ to provide reliable and secure dial-up modem access to their customers.
  • Network Troubleshooting: The AS2511-RJ can be used for troubleshooting network issues by granting remote access to technicians or administrators.

Performance of 16 Ports Router

  • The Cisco 2511-RJ 16-Ports Access Router (AS2511-RJ) is a legacy router that was first introduced in the 1990s and is no longer in production. It was designed for small to medium-sized businesses and branch offices and was used as an access or edge router.
  • This Model features 16 synchronous serial ports, which support a maximum data rate of 2Mbps. It also includes two 10/100 Ethernet ports, a console port, and a serial management port. The router has a maximum throughput of 20Mbps, which is suitable for small-scale networks and low-bandwidth applications.
  • The router runs on Cisco's IOS (Internetwork Operating System) and supports various routing protocols such as RIP, IGRP, and OSPF. It also supports dynamic IP addressing and DHCP server functionality, making it easy to configure and manage.

Good Side of This Router

  • The Cisco 2511-RJ 16-Ports Access Router (AS2511-RJ) is a reliable and robust router that offers a wide range of features to support small and medium-sized networks. Some of the key benefits of this router include:
  • Multiple connectivity options: The router has 16 built-in Ethernet ports, which provide a variety of connectivity options for different devices and networks.
  • High-performance routing: The router utilizes Cisco's IOS software, which offers a range of advanced routing features such as IP routing, access control lists, and Quality of Service (QoS) for efficient data transfer.
  • Security features: The router includes built-in security features such as access control lists, firewalls, and VPN support for protecting the network from unauthorized access and data breaches.
  • Scalability: The router can be easily expanded by adding additional interfaces and network modules, making it an ideal choice for growing networks.
  • Easy management: The router can be managed and configured using the Cisco IOS command-line interface or the Cisco Web Interface, making it easy for network administrators to manage and troubleshoot the device.
  • High availability: The router supports features like Hot Standby Router Protocol (HSRP) to provide redundancy and high availability for mission-critical networks.
  • Legacy support: The router supports legacy protocols like AppleTalk, which allows older devices to communicate with the network.
  • Affordable: For a Cisco brand name and router this particular router is affordable compared to other routers in the market with similar features.

Detail Information

  • The Cisco 2511-RJ is a 16-port access router that is designed for small- to medium-sized business networks and branch office environments. It is part of the Cisco 2500 series and is commonly referred to as the AS2511-RJ.
  • The router features 16 10Base-T/100Base-TX Ethernet ports, which can be used to connect devices such as PCs, servers, and other network devices. It also has a single asynchronous serial (RJ-45) port for WAN connections, such as a T1 or ISDN line.
  • This product runs on the Cisco IOS software, which provides a wide range of routing protocols and features, including support for IPv4 and IPv6, dynamic routing protocols (such as OSPF and EIGRP), and Quality of Service (QoS) features for managing bandwidth.
  • The router also has a built-in flash memory for storing the Cisco IOS software and a single DIMM slot for additional memory. It supports an optional Network Module (NM) slot for additional interfaces and features.
  • This model is a reliable and versatile access router that is ideal for small- to medium-sized businesses looking for a cost-effective solution for connecting their devices and managing their network. It can also be used as a terminal server for remote access.
  • It is important to note that the Cisco 2511-RJ is an older model and is no longer sold by Cisco. Customers are advised to check with Cisco's current offering for alternatives, such as the Cisco ISR routers.

Main Specifications about this Cisco AS2511-RJ

  • Manufacturer: Cisco
  • Model Number or SKU# AS2511-RJ
  • Product Series: 2500
  • Product Model: AS2511
  • Product Type: Router

Key Features of AS2511 Access Router

  • Total Number of Ports: 16
  • Form Factor: External
  • Connectivity Technology: Wired
  • Form Factor Rack-mountable, Wall Mountable
  • Data Link Protocol: Ethernet, serial

Memory of AS2511-RJ Router 2500 Series

  • RAM: (16 MB max)
  • Flash Memory: 16 MB
Power Description for 16 Ports Server Router
  • Power Device: Internal power supply
  • Input Voltage 110 V AC
  • Input Voltage 220 V AC
  • Compliant Standards: IEEE 802.3
  • Data Transfer Rate: 10 Mbps
  • Features: Modular design, manageable
  • Status Indicators: Power, system

In Summary, the Cisco AS2511-RJ 2500 Series 16-Ports Asynchronous Universal Router Access Server is a versatile and reliable networking device with a range of applications. Its 16-port capacity, security features, and remote access capabilities make it a valuable asset for network administrators and organizations. By centralizing device management and connectivity, it streamlines network operations, enhances security, and offers cost-effective solutions. Whether you are managing a data center, remote offices, or providing ISP services, the AS2511-RJ is a robust choice to consider for your networking needs.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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