Common Systems Connection Standards AT&T Services, Inc
Date: August 31, 2007 ATT-TP-76450, Issue 9
Copyright ©2004 – 2006, AT&T Knowledge Ventures
All rights reserved
Page 17
5.7 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
1.5" Radius
3.75"
2.25"
1.5" Radius
3.0
"
D
i
a
meter
5.8 Space Between Door/Panel and Fiber Connector
To avoid pinching or reduction of minimum fiber bend radius the minimum distance between the
fiber connector and any door/panel cover shall be a minimum of 3.75 inches.
See Figure 5-1
5.9 Standard Fiber Connector
The AT&T standard fiber connector shall be SC-UPC single mode or LC-UPC single mode type
connector. Application of connector type shall be determined by equip design or manufacturer.
5.10 Alternative FTTP Fiber Connector
The AT&T alternative fiber connector for FTTP shall be SC-APC, SingleMode, 8-degree, keyed
type connector.
5.11 FiberOptic Cable Mode
• Central Office fiber optic cable shall be SingleMode.
• Customer Premises or IXC fiber optic cable may be SingleMode or Multimode.
• SONET services fiber optic cable shall be SingleMode.
5.12 Fiber Transmission Material
Fiber transmission material shall be glass, not plastic or any other material not specifically pre-
approved by AT&T NP&E Staff.
