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DETAIL ENGINEERING REQUIREMENTS Section 9, ATT-TP-76400

AT&T January, 2012

the terminating end, to convert an electrical Ethernet signal to an optical signal and back

again.

7.2.10 When Optical signals associated with the EDF and Media Converters are being cabled

between non-contiguous areas or floors, fiber tie cables shall be required instead of fiber

jumpers.

7.2.11 Optical signals associated with the EDF and Media Converters shall not be terminated on a

Fiber Optic Distributing Frame (FDF).

7.3 Electrical EDF Components for the C.O.

7.3.1 The EDF shall consist of the following components: Patch Panels, Upper and Lower Troughs

and Glide cable management system. If required, additional components may include Media

Converter(s), Fuse Panel and Fiber Optic Management Tray.

7.3.2 For detailed information on EDF components refer to Common systems drawing ATT-C-

20010-E and AT&T Equipment drawing ATT-E-01885 for appropriate panel selection.

7.4 Cable Requirements

7.4.1 The standard twisted pair arrangements used within the Telco environment shall not be used

for any Ethernet Signals. All Ethernet Cabling products must adhere to the standards set

forth in AT&T equipment drawings ATT-E-00053-E and ATT-E-01885.

7.4.2 If embedded cabling is used, the existing Cat 5/5E standards need to be used. New service

provisioning from the Telco to the Demarcation Point will meet or exceed Cat 5E standards.

7.3.3 The minimum length of patch cable will not be less than one meter (3.28 feet) and will not

exceed nine meters (29.52 feet).

7.5 References

ATT-TP-76412, Ethernet Standards for the AT&T LOCAL EXCHANGE carriers

ATT-002-316-076, Ethernet Architecture Standards

ATT-E-01885-E, Ethernet Distributing Frame – Equipment Drawings

ATT-E-01885-W, Ethernet Distributing Frame – Wiring Drawings

ATT-E-01886-E, Ethernet Media Converter – Equipment Drawings

ATT-E-01886-W, Ethernet Media Converter – Wiring Drawings

ATT-C-20010-E, Ethernet Distributing Frame – Equipment Drawing (Common Systems)

[END OF SECTION]

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