SECTION 61100022L1-5

 

MAIN

 

 

D4

 

 

 

 

 

POWER

 

 

 

 

DISTRIBUTION

 

 

 

LT

MODULE

 

 

 

FRAME

(24)

 

(20)

ISDN

 

U-RPM

 

U

MDF

T

 

T1

U-REPEATER

 

 

 

 

 

 

 

INTERFACE

 

 

 

 

 

 

 

 

 

(51)

 

 

 

(47)

TO

 

 

85 mA-

+

CUSTOMER

 

 

R

R1

12,000 Ft.

 

 

 

CURRENT

 

(15)

26 Gauge

 

 

 

SOURCE

 

 

 

 

(1)

(43)

 

 

 

 

GND -48 -48 RET

REPEATER

 

 

 

 

 

 

 

POWER

 

 

 

 

 

 

 

CONVERTER

 

 

 

 

 

 

 

To LT

 

 

 

 

 

 

 

12,000 ft., 26 Gauge

CENTRAL

 

 

 

 

 

 

 

OFFICE

 

 

 

 

 

 

 

FIGURE 2. U-Repeater Powering Module Application

2.0INSTALLATION

2.01After unpacking the unit, immediately inspect it for possible shipping damage. If damage is

discovered, file a claim immediately with the carrier, and then contact ADTRAN customer service, see Paragraph 5.03.

2.02The U-RPM plugs directly into any of the 12 channelpositions of the GPC-1 or the 24 channel

positions of the AD4-24 or WECO D4 Channel Bank.

NOTE: When installed in D4-type compatible channel banks, the unit dissipates approximately 3 W.

2.03The U-RPM contains installed option jumpers

forClass A2 (± 80 V) or may be optioned for Class A3 (0 V to -140 V) operation, using the 22 AWG jumpers provided with the unit, ADTRAN Part Number: 3336.008.

See Figure 4 for option locations and Table A for the option settings. The Loop Resistance Fault indicator illuminates when loop resistance exceeds 1000

Ωor if the loop is open to the Repeater.

2.04The U-RPM contains a factory replaceable (3/4 A) Slo Blo fuse on the -48 V line to isolate the

bank in the event of unit failure.

2.05After installing the U-Repeater System, see ADTRAN's U-Repeater Installation/Maintenance

Practice, Section Number, 61150.017-5. Grasp the U- RPM by its faceplate and insert it into a channel position. Push the U-RPM into the backplane connector until firmly seated.

3.0CONNECTIONS

3.01Figure 3 shows the connector pin assignments of the U-RPM. All connections to the unit are

made via the GPC or D4 compatible backplane. No additional backplane wiring is necessary for normal

Class of Operation

Voltages Used

Jumper(s) Installed

 

 

 

 

 

Class A2

± 80 V

 

 

J1 only

Class A3

0 V to

-140 V

J2 & J3 only

 

 

 

 

 

TABLE A. U-RPM Option Selections

PAGE 2

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ADTRAN D4-U-RPM warranty Installation, Connections
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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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