C A U T I O N !

Section 61107005L2-5

Issue 3, June 1996

CLEI Code # D4DA740 _ _ _

PRACTICES

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

D4-OCU DP (ETR)

ALL-RATE OFFICE CHANNEL UNIT DATAPORT

WITH EXTENDED TRANSMIT RANGE

INSTALLATION/MAINTENANCE

 

CONTENTS

 

1.

GENERAL

1

2.

INSTALLATION

2

3.

CONNECTIONS

3

4.

TESTING

3

5.

AUTO LOOP DISCONNECT

4

6.

MAINTENANCE

4

7.

WARRANTY AND CUSTOMER SERVICE

4

 

FIGURES

 

Figure 1. ADTRAN D4-OCU DP

1

Figure 2. Rate Option Switch

2

Figure 3. SW1

3

Figure 4. Connector Pin Assignments

4

 

TABLES

 

Table A. SW1 Option Settings

3

1.GENERAL

This practice has been reissued to correct enhanced Switch 56 references.

This practice is an installation and maintenance guide for the ADTRAN Office Channel Unit Dataport (D4-OCU DP) with Extended Transmit Range1 (ETR). Figure 1 is an illustration of the unit. A detailed product description is found in ADTRAN D4-OCU DP Description Practice, Section 61107005L2-2.

The Office Channel Unit Dataport (OCU DP) allows access to the Dataphone® Digital Service (DDS) or Basic Digital Service using existing 4-wire metallic facilities and D4 channel banks equipped for dataport operation. In addition to this interchangeability, the ADTRAN D4-OCU DP contains the following enhancements:

Extended loop range2 (45 dB receiver range when operated at all rates)

Intermediate rate of 19.2 kbps; special format3

________________________________________

1Covered under I.N.C. patent number 4,887,278 Dataphone is a registered trademark of AT&T

2Covered under ADTRAN patent number 4,759,035

3Covered under I.N.C. Patent No. 4,862,480

O N

 

 

 

 

 

 

1

 

 

 

 

 

 

2

 

 

 

 

 

 

3

 

 

 

 

 

 

4

OCU

DP

 

5 6 7

 

8

 

 

 

 

9 10

1107005L2

 

 

D4-OCUDP

 

 

SW1

RX (OUT)

 

 

 

 

 

 

 

 

 

 

 

TX (IN)

 

 

 

 

 

 

LOOP

 

BACK

 

 

 

 

 

 

 

IDLE

 

CKT

 

 

 

 

 

 

 

NO

 

SX

 

 

AUTO

DIS

 

 

 

 

 

 

38.4

56 64

56

 

 

 

 

38.4

 

 

19.2

 

 

 

19.2

 

SC

9.6

 

 

 

9.6

 

 

4.8

 

 

 

4.8

 

 

2.4

SW56

2.4

 

 

 

 

 

Figure 1. ADTRAN D4-OCU DP

Switched 56 capability

Latching and normal loopbacks

Latching loopback capability in SW56 mode

Loss of sealing current disconnect

Poor loop signal quality disconnect

Hardware signaling selection

45 dB range at all rates

Faceplate Bantam jacks

Four diagnostic faceplate indicators

Extended transmit range

Furnished with common equipment and individual channel units, the D4 channel bank is a digital terminal providing multiple-channel access to T carrier lines. The dataport is a D4-type channel unit which allows direct digital access to a T carrier time slot, avoiding the normal analog-to-digital conversion required in a voice channel unit.

61107.005L2-5C

Section 61107005L2-5, Issue 3

 

1

Page 1
Image 1
ADTRAN D4-OCU warranty L2-5 Issue 3, June Clei Code # D4DA740, Practices, General, Ocu

D4-OCU specifications

ADTRAN D4-OCU is a versatile and reliable digital access concentrator designed to efficiently manage and deliver telecommunication services. This device is primarily aimed at service providers looking to extend their network capabilities and enhance customer service by integrating robust functionalities into their infrastructure.

One of the main features of the ADTRAN D4-OCU is its support for a wide range of digital signal formats, including DS1, DS3, and various T1/E1 standards. This flexibility allows service providers to accommodate different types of connections in a cohesive manner, making it easier to manage existing infrastructure while preparing for future upgrades. The device is engineered to provide a seamless transition between legacy TDM and modern packet-based networks, thereby facilitating a smooth migration path for operators.

The D4-OCU is built upon advanced technologies to optimize performance. It utilizes efficient signaling protocols that support both circuit-switched and packet-switched services. This dual capability ensures that service providers can meet the diverse needs of their customer base, whether they are providing traditional voice services or modern high-speed internet access. By supporting both voice and data traffic, the D4-OCU helps to maximize resource utilization, reducing operational costs and improving revenue potential.

Additionally, the ADTRAN D4-OCU features robust monitoring and management capabilities. With built-in diagnostic tools, service providers can easily track performance metrics, troubleshoot issues, and maintain service quality. This proactive approach to network management allows for quick resolutions to potential problems, ultimately enhancing customer satisfaction and reducing service disruptions.

Another key characteristic of the D4-OCU is its scalability. As demand for bandwidth increases, service providers can easily expand the capacity of the device by adding additional modules. This modular architecture ensures that as technology evolves and customer needs change, the D4-OCU can adapt accordingly without requiring a complete system overhaul.

In conclusion, the ADTRAN D4-OCU stands out as a powerful digital access concentrator that combines versatility, performance, and scalability. Its ability to support a wide range of digital signal formats, efficient integration of diverse technologies, and robust management features make it a valuable asset for telecommunications service providers. With the D4-OCU, operators can confidently navigate the complexities of modern networking while delivering high-quality services to their customers.