AT&T 76450 manual Fiber Attenuators

Common Systems Connection Standards	AT&T Services, Inc
Date: August 31, 2007	ATT-TP-76450, Issue 9

4.11Housekeeping/Overhead Alarm Inputs

All network elements that will be deployed in a non-central office environment, such as RT, CEV, Cabinet, etc., that are intended to carry local power and environmental alarms to a surveillance center must have at minimum sixteen (16) housekeeping/overhead user definable discrete alarm inputs. Although not required, an Ethernet/DCC access connection to the overhead for this purpose is strongly desired.

5 Fiber

All Fiber Optic Standards contained herein are applicable to any manufacturer’s product that can be administered or managed by AT&T personnel.

5.1Fiber Optic Cable

Fiber Optic cables/jumpers shall adhere to BELLCORE Standards as defined in GR-409, Generic Requirements for Premises Fiber Optic Cable.

5.2Optical Cable/Jumpers & Connectors

Fiber Cross Connect Cables/Jumpers and Connectors shall be SingleMode.

5.3 Fiber Attenuators

Attenuators shall be for SingleMode Facilities.

5.4Fiber Connector Boots

Fiber connector boots shall be straight and not angled.

5.5Fiber Minimum Bend Radius

The minimum fiber bend radius shall be 1.5-inches or 10 times the cable diameter at any point whichever is greater. Network equipment shall provide fiber management facilities that maintain a minimum 1.5 inch bend radius from the connector until handoff to the bay or cabinet fiber management facilities. See Figure 5-1

5.6Maximum Fiber Connector length

The maximum fiber connector length (including boot) away from the mating connector housing shall not exceed 2.25 inches. See Figure 5-1

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