CISCO HWIC-1DSU-T1 Fractional Dsu Csu Wan Interface Card 1-PORT T1/FRACTIONAL Dsu/csu

( Brand: Cisco ), ( Manufacturer Part Number: HWIC-1DSU-T1 ), ( Part Type: Interface Card )

Review CISCO 1-port T1/fractional T1 Dsu/csu Wan Interface Card New

The Cisco HWIC-1DSU-T1 is a versatile and high-performing WAN interface card designed for Cisco routers to support T1/Fractional T1 Digital Subscriber Line (DSL) connections. This compact module integrates seamlessly with various Cisco router platforms, expanding their capabilities to accommodate advanced data communication requirements.

Measuring only 1.7 inches in length, the HWIC-1DSU-T1 houses a single T1/Fractional T1 interface, delivering a maximum throughput of 1.544 Mbps. The card's advanced Digital Subscriber Unit 0 (DSU-0) and Channel Service Unit 0 (CSU-0) functions ensure reliable and error-free data transmission over T1 lines.

The Cisco HWIC-1DSU-T1 supports both CSU and DSU modes, making it an ideal solution for various WAN connectivity scenarios. It is backward-compatible with earlier Cisco router models that use proprietary NEBS-3 (Network Equipment Building System) or NEBS-compliant line cards, allowing for smooth integration with existing infrastructure.

This WAN interface card comes equipped with built-in Discrete Multi-Tone (DMT) modem functionality, enabling it to automatically adjust the line code to optimize the data transfer rate based on the specific line conditions. Additionally, the HWIC-1DSU-T1 features support for various protocols, including Point-to-Point Protocol (PPP), High-Level Data Link Control (HDLC), and Asynchronous Transfer Mode (ATM) over T1.

The Cisco HWIC-1DSU-T1 also includes various advanced features, such as support for Automatic Call Diversion (ACD), Call Forwarding, and Caller ID. These features contribute to enhanced call management and improved communication efficiency for businesses and organizations relying on T1 connections for critical data transfer and voice communication.

The HWIC-1DSU-T1 is a robust and field-proven WAN interface card that offers flexibility, reliability, and high-speed connectivity for Cisco routers. With its compact form factor, extensive compatibility, and advanced features, it is an excellent choice for organizations seeking to upgrade their WAN infrastructure or expand their network capabilities.

The Cisco HWIC-1DSU-T1 is a 1-port T1/Fractional T1 Digital Subscriber Unit/Channel Service Unit (DSU/CSU) WAN interface card designed for Cisco routers. This device enables the router to support T1 WAN connections. Here are some pros and cons of buying this interface card:

1. Reliability: T1 lines are known for their reliability and high data transfer rates, making them an ideal choice for businesses that require a stable and fast WAN connection.

2. Support for Fractional T1: The Cisco HWIC-1DSU-T1 supports Fractional T1, which allows businesses to purchase a T1 line at a lower cost by splitting it into multiple channels.

3. Compatibility: This interface card is compatible with various Cisco router models, providing flexibility for businesses that use different router types.

4. Easy Installation: Installing the Cisco HWIC-1DSU-T1 is a straightforward process, and the card comes with all necessary cables and documentation.

5. High Data Transfer Rates: T1 lines offer high data transfer rates, making them suitable for businesses that require large bandwidth for data transfer.

1. Cost: T1 lines and the corresponding interface cards can be expensive compared to other WAN connection options like DSL or cable.

2. Complex Configuration: Configuring a T1 WAN connection can be complex, and businesses may need to hire a network engineer to set it up properly.

3. Limited Availability: T1 lines are not readily available in all areas, and businesses may need to check with their local service providers to see if they offer T1 services.

4. Requires Backup: Due to the high cost of T1 lines, businesses should consider investing in backup connections to ensure business continuity in case of a WAN outage.

In conclusion, the Cisco HWIC-1DSU-T1 is a reliable and high-performance interface card that offers businesses a stable and fast WAN connection. However, it comes with a high cost and complex configuration, making it suitable for businesses that require a large bandwidth and a stable connection. If your business falls into this category, the Cisco HWIC-1DSU-T1 is a good investment. However, if you're looking for a more cost-effective solution, you may want to consider other WAN connection options like DSL or cable.

Details:

Loaded and configured with legally licensed software for full operations. Collectible or Specialty Equipment Core Requirement 6. Weldon't allow a return for incompatibility, change of mind, or misunderstanding on buyers part. Function are verified working through manual or software tests.

Critical parts are missing. Overall excellent cosmetic condition. Damage to latches, hinges, keyboards, etc. Testing Procedures.

Software may not be loaded or configured. New, unused equipment in original packaging where factory seal shave been broken. Hardware Functional Appendix C Test and Repair. Used equipment that has been fully restored to like-new condition with warranty.

Verified removed from operation with no known defects in functionality. Software not loaded or configured. Xci: COUIALECAB. Type: 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card.

This Unit has had its Serial Number covered for security. Zero defects. No damage to latches or hinges, nor any missing parts, panels,bezels, covers. Minor wear of labeling may be visible.

All hardware is tested and verified working through manual or software tests. May not include Focus Materials Minor dents and areas of discoloration from the removal tags. Collectibles are rare, vintage, and no longer manufactured or supported by the OEM.

Used Poor - Heavy use and age. New Open Box. Fully cleaned and cosmetically repaired with no blemishes. All functions tested and verified working through software tests.

Cisco HWIC-1DSU-T1 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card NEW This Unit is sold as it shown on the pictures. Battery that are networking or not tested. No signs of wear or alteration. Specifications Brand: Cisco.

Loaded and configured with original manufacturers legally licensed software for full operation. Repaired with OEM original parts. Model: HWIC-1DSU-T1. Are prevalent.

Fully cleaned with all non-original labels removed. No hardware defects. May have light scratches or other minor blemishes from normal wear. Refurbished Appendix C Test and Repair.

A subset of the primary functions device that an ordinary user expects. May be missing components or parts not essential to key functions. After installation of the Windows operating system, each computer is performance tuned and startup optimized to ensure system integrity under high levels stress. Used Fair Moderate use and age.

No corrosion. Consumer Electronics: We perform a power and connectivity test as well preliminary inspection to make sure that no harmful beyond cosmetic damage has occurred could impact the use purpose of product. Used Very Good. Cosmetic blemishes include scratches and/or other surface imperfections from consistent use, but equipment is in good condition overall.

NON-DATA wiped, no data on drives. Like New Appendix C Test and Repair. Verified Specialty Electronics Appendix. Secondary functions may not be tested or working.

No missing or damaged components parts. Used Excellent. You can ship by your FedEx account label if requested. Cosmetic blemishes are consistent with wear, including multiple dents, discoloration, and light to heavy scratches.

No missing parts. Cosmetic blemishes are significant, such as multiple heavy dents, may require repair. Minor cosmetic blemishes have no impact on the systems overall functionality or performance. Cosmetic blemishes include minor scratches and/or other surface imperfections from consistent use, but equipment is in good condition.

Key Functions Working Appendix C - Test and Repair. Some parts, panels, bezels, or covers may be missing. No physical damage or defects. Product Functionality.

May have broken or missing parts. Damages to latches, hinges, keyboards, etc. Meets OEM specifications for full original functionality. Network Gear: Our used / refurbished network equipment is port and power on tested.

New, out of box, unused equipment removed from original packaging with no signs. Part numbers and serial verified accurate. No hardware or software defects. Software test results are available.

part #: hwic1dsut1 prices

• $7.42-$55.00

specifications switchchunk:

• brand: Cisco
• mpn: Hwic-1dsu-t1
• part type: Interface Card

shipping switchchunk:

• cost: $0.00
• type: Calculated
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• carrier: FedEx
• transit: 2-6 Days

offer switchchunk:

• best offers: True
• started: May 5, 2026
• quantity: 2
• sold: 0
• availability: In Stock
• options: Ship-to-home

general switchchunk:

• Enterprise Networking, Servers > Switches Hubs > Switch Modules
• condition: New

seller switchchunk:

• # reviews: 9869
• rating: 99.8%
• city: Plano, Texas

returns switchchunk:

• policy: Returns Accepted
• method: Money back
• time: 30 Days
• paid by: Seller

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• other
• credit card: Mastercard

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