Maintenance, Warranty and Customer Service

GND

- 48 V RET

-48 V

R1				T1

R T

FIGURE 3. Connector Pin Assignments

SECTION 61100022L1-5

operation of the U-RPM.

4.0MAINTENANCE

4.01The U-RPM requires no routine maintenance to operate. ADTRAN recommends that units not

be repaired in the field. Repair services may be obtained by returning the defective unit to ADTRAN.

5.0WARRANTY AND CUSTOMER SERVICE

5.01ADTRAN will replace or repair this product within five (5) years from the date of shipment if it does

not meet its published specifications or fails while in service.

For detailed warranty and repair and return information, refer to our ADTRAN Equipment Warranty and Repair and Return Policy and Procedure.

5.02A Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN.

5.03For Sales or General Information, contact: ADTRAN Customer Service - Sales

(205)722-8779

For Technical Support, contact:

ADTRAN Customer Service - Technical Support

(800) 726-8663

For RMA requests, contact:

ADTRAN Customer Service - Repair Department

(205) 722-8722

Repair and Return Address:

ADTRAN, INC.

Customer Service - Repair Department

4955 Corporate Drive

Huntsville, AL 35805

J1 J2 J3

FIGURE 4. U-Repeater Powering Module Option Locations

4955 Corporate Drive • Huntsville, Alabama 35805 • (205) 837-7800 • FAX (205) 722-8699

PAGE 3

D4-U-RPM specifications

ADTRAN D4-U-RPM is a high-performance networking device designed to meet the demands of modern telecommunications environments. As part of ADTRAN's extensive portfolio, the D4-U-RPM stands out for its versatility, scalability, and robust feature set aimed at enhancing network efficiency and performance.

One of the most prominent features of the D4-U-RPM is its support for both traditional and next-generation protocols. This dual compatibility makes it an ideal solution for service providers looking to transition from legacy systems to more advanced technologies without the need to overhaul their entire infrastructure. The device supports T1/E1, DS3, and other conventional telecommunications formats, ensuring a seamless integration into existing networks.

The D4-U-RPM is also equipped with numerous advanced management capabilities. Through its user-friendly interface, network administrators can efficiently monitor and control the device's operations. Remote management capabilities are especially beneficial, allowing for consistent oversight regardless of location. This feature eliminates the need for on-site maintenance and significantly reduces operational costs.

One of the most significant advancements of the D4-U-RPM is its support for the latest communication standards, including Ethernet over TDM and IP-based services. This capability enables the device to bridge the gap between traditional telecommunications and modern IP networks, facilitating a smooth transition for operators looking to expand their service offerings to include broadband and VoIP.

In terms of performance, the D4-U-RPM exhibits exceptional reliability. Its robust architecture ensures minimal downtime, which is critical for businesses that rely on continuous connectivity. The device also incorporates various redundancy features and advanced error-correction mechanisms that enhance its resilience against network failures.

Furthermore, the D4-U-RPM offers flexible configurations that can be tailored to meet the specific needs of any telecommunications provider. With its modular design, it allows for easy upgrades and expansions as technology evolves, making it a future-proof investment.

In summary, the ADTRAN D4-U-RPM serves as a vital tool for telecommunications providers, effectively combining legacy support with modern networking capabilities. Its comprehensive feature set, advanced management options, and robust performance characteristics make it an essential asset for operators aiming to enhance their infrastructure while future-proofing their investments against rapidly changing technology landscapes.