AT&T 76450 - Manual (Page 18)

Common Systems Connection Standards AT&T Services, Inc
Date: June 2013
ATT-TP-76450, Issue 15
Copyright © 2013, AT&T . All Rights Reserved.
Page 18
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. All references to SingleMode fiber shall
be considered Bend Insensitive Fiber (BIF).
5.1 Fiber Optic Mode
Fiber Optic cards, transmitters and receivers shall be SingleMode.
5.2 Fiber Optic Cable
Fiber Optic cables/jumpers/patch cords shall adhere to Telcordia Standards as defined in GR-
409, Generic Requirements for Premises Fiber Optic Cable and GR-326, Generic Requirements
for Singlemode Optical Connectors and Jumper assemblies.
5.3 Optical Cable/Jumpers & Connectors
Fiber Cross Connect Cables/Jumpers and Connectors shall be SingleMode.
5.4 Fiber Attenuators
Attenuators shall be SingleMode.
5.5 Fiber Connector Boots
Fiber connector boots shall be straight and not angled.
5.6 Fiber Minimum Bend Radius
The minimum fiber bend radius shall be 1inch or 10 times the cable diameter at any point
whichever is greater. Network equipment shall provide fiber management facilities that
maintain a minimum 1 inch bend radius from the connector until handoff to the bay or cabinet
fiber management facilities. See Figure 5-1
5.7 Maximum 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
5.8 Minimum Distance Between Connector Housing and 90 Degree Bend
Minimum Fiber distance away from a connector housing to bend 90 degrees shall be 3.75-
inches. See Figure 5–1.
Figure 5-1