ADC Migration Modules DSX-3 Manuel d'utilisateur télécharger pdf (Page 2)

Section 9, ATT-TP-76400 DETAIL ENGINEERING REQUIREMENTS

AT&T January, 2012

Table 9-1 – summary of changes in section 9

Revision Date Item Action Requirements Change Notification

3/26/2014 6.3.1 Modification ATT-TP-76400-103

4/1/2014 6.4.1 Modification ATT-TP-76400-104

4/9/2014 6.4.13 Add ATT-TP-76400-105

4/18/2014 7.1.4 Add ATT-TP-76400-106

5/15/2014 6.4.13 Modification ATT-TP-76400-107

5/16/2014 7.1.4 Modification ATT-TP-76400-109

10/2/2014 6.4.14 Add ATT-TP-76400-125

1/19/2015 6.1.19 Modification ATT-TP-76400-132

1. GENERAL

1.1. Introduction

1.1.1 The cross-connect network is comprised of conventional Distributing Frames (DF), modular

DF, manual Digital Cross-connect (DSX1 and DSX3) frames, Fiber Distributing Frames

(FDF), and Ethernet Distributing Frames (EDF).

1.1.2 Changes in this issue of Section 9 are summarized in Table 9-1.

1.1.3 Providing optimum flexibility and economy in the network is the objective of cross-connect

engineering. Successful engineering of the network components requires efficient work

operations, while avoiding blocked line-ups, premature jumper trough congestion, lack of

equipment spread, and tie cable overuse.

2. DISTRIBUTING FRAMES (DF)

2.1. General

2.1.1 Distributing frames (DF’s) are manually operated, cross-connection devices used for the

efficient connection between Carrier Communications Space equipment and outside plant

cable facilities.

2.1.2 The Distributing Frame supports the interconnection needs for customers, carriers, other

telecommunications providers (CLEC’s), switches, transport equipment, and cable facilities

within the serving Wire Center (WC) area.

2.1.3 Distributing frames fall into two functional configurations: Main Distributing Frames (MDF)

and Intermediate Distributing Frames (IDF). MDF's and IDF's are available in two physical

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