C A U T I O N

PRACTICES

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

Section 61100022L1-5

Issue 3, April 1992

CLEI Code # DDRPG701_ _

MODEL U-RPM

D4-U-RPM

U-REPEATER POWERING MODULE

INSTALLATION/MAINTENANCE

 

Contents

 

Paragraph

Page

1.

General

1

 

Figure 1. ADTRAN D4 U-RPM

1

2.

Installation

2

 

Figure 2. U-RPM Application

2

 

Table A. U-RPM Option Selections

2

3.

Connections

2

 

Figure 3. Connector Pin Assignments

3

 

Figure 4. U-RPM Option Locations

3

4.

Maintenance

3

5.

Warranty And Customer Service

3

1.0GENERAL

1.01This section provides installation and maintenance

information for the ADTRAN U-Repeater Powering Module (U-RPM), Part Number: 1100022L1. Figure 1 shows the front of the unit. Figure 2 represents a generic module application. Figure 3 shows the connector pin assignments for the U-RPM. The unit's part number and basic features are:

 

Part

 

Equipment

Number

Features

U-Repeater

1100022L1

Repeater Powering for

Powering

 

ADTRAN ISDN mid-point loop

Module

 

repeater; Loop resistance fault

(U-RPM)

 

indicator; Class A2 or Class A3

 

 

operation.

 

 

 

1.02This practice has been reissued to reflect the addition of a field selectable powering option in

Paragraph 2.04 and Figure 4 and the latest CLEI designation. Issue 3 adds a new Sales telephone number.

®WECO is a registered trademark of AT&T Technologies

61100.022L1-5C

FIGURE 1. ADTRAN D4 U-RPM

1.03The U-RPM is a channel plug-in used in the ADTRAN GPC-1 or AD4-24 Shelves or the

WECO® D4 channel bank, to provide sealing current power for the ADTRAN ISDN mid-point loop repeater.

1.04The U-RPM provides three functions for the ADTRAN ISDN mid-point loop repeater. These

functions are:

1.The D4-U-RPM receives -48 VDC power from the facility power source and sends constant 85 mA of sealing current down the loop to power the U-Repeater.

2.A passive customer data flow is allowed through the D4-U-RPM.

3.The D4-U-RPM monitors the line for excessive resistance or open conditions.

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ADTRAN D4-U-RPM warranty Practices, General
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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.
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