Test Requirements for OTDR, TR-12/24 and Fiber Reel
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Test Requirements for OTDR, TR-12/24 and Fiber Reel. Vijay Jain DMTS – SIT Verizon Technology Organization E-mail: Vijay.x.Jain@Verizon.com. Test Requirements for OTDR. 1.0 Definitions:

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Test Requirements for OTDR, TR-12/24 and Fiber Reel

Vijay Jain

DMTS – SIT

Verizon Technology Organization

E-mail: Vijay.x.Jain@Verizon.com


Test Requirements for OTDR

1.0 Definitions:

Portable Use: A temporary installation of Test and Measurement Equipment that does not meet the definition for a permanent installation. A temporary installation includes hand held devices.

Controlled Environmental Location: Operating temperature range of 5 to 40 degrees C.

Uncontrolled Environmental Location: Operating temperature range of -40 to 46 degrees C.


Test Requirements for OTDR

  • 2.0 Portable Use Test and Measurement Equipment Qualification Test Requirements:

  • All portable use Test and Measurement Equipment shall comply with the following NEBS requirements:

  • a. GR-1089-CORE

    • 3.2 EMI Emissions Criteria

    • 3.3 EMI Immunity Criteria

  • b. GR-63-CORE

  • 4.1.2 Operating Temperature and Humidity (for environmentally controlled locations only)


Test Requirements for OTDR

Portable use Test and Measurement Equipment used in an environmentally uncontrolled environment, including hand-held devices, shall also comply with the following requirements:

c. GR-63-CORE

2.9.4 Non-Environmentally Controlled Equipment Housings (-40 degrees C to 46 degrees C with Solar Loading Operating Temperature Requirements)


Test Requirements for OTDR

  • d. IEC 60068

  • 68-2-32 Free Fall Tested at –18 degrees C (this test applies to hand-held devices only)

  • NOTE: Since temperature is not specified for this test, the low temperature requirement was selected based on GR-950-CORE R5-15 Vertical Drop for ONU Closures, since it is unlikely operators will be performing service calls and using hand-held Test and Measurement equipment at temperatures below –18 degrees C.

  • e. GR-196-CORE

    • All applicable requirements

    • A sample size of 3 shall be used for all the tests


FTTP PON Layout

CO

F2 Fibers

DropTerminal

DropTerminal

DropTerminal

F1 (Facility 1)

Fibers

F2 Fibers

DropTerminal

DropTerminal

DropTerminal

Fiber

Distribution

Hub (FDH)

Overview of TR-12/24, Fiber Reel and OTDR


CO

DropTerminal

Hub

(FDH)

Fiber Ring

TR

OFL 200

Overview of TR-12/24, Fiber Reel and OTDR Continued …




100 ft increments

TR-xxFiber 1

Fiber Ring

F2 Fiber

Fiber lengths in feet:

350, 450 … 1,450 (TR-12 and 24)1550, 1650 … 2,650 (TR-24 only)

B

A

Fiber 2

Fiber 3

Fiber 4

Overview of TR-12/24, Fiber Reel and OTDR Continued …






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