CA2212759A1 - Optical monitoring and test access module - Google Patents

Optical monitoring and test access module

Info

Publication number
CA2212759A1
CA2212759A1 CA002212759A CA2212759A CA2212759A1 CA 2212759 A1 CA2212759 A1 CA 2212759A1 CA 002212759 A CA002212759 A CA 002212759A CA 2212759 A CA2212759 A CA 2212759A CA 2212759 A1 CA2212759 A1 CA 2212759A1
Authority
CA
Canada
Prior art keywords
optical
module
test access
electronic
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002212759A
Other languages
French (fr)
Other versions
CA2212759C (en
Inventor
Frank Salvatore Leone
Joel Leslie Mock
John Mark Palmquist
William Joseph Parzygnat
Richard Joseph Pimpinella
Randy Alan Reagan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2212759A1 publication Critical patent/CA2212759A1/en
Application granted granted Critical
Publication of CA2212759C publication Critical patent/CA2212759C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames
    • G02B6/44524—Distribution frames with frame parts or auxiliary devices mounted on the frame and collectively not covering a whole width of the frame or rack
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames

Abstract

The present invention is an optical monitoring and test access interconnection module especially adapted for use with a fiber optic distribution frame for a fiber optic communications system. The interconnection module provides a combination of monitoring and test access for two fiber lines, typically a transmit/receive pair, where wavelength division multiplexer (WDM) test access is provided to both the transmit and receive fibers. In one embodiment of the present invention, the interconnection module monitors only the receive fiber line where a power monitoring circuit receives a monitor level optical signal via an optical tap and converts the optical signal to an electrical output: Processing electronics and firmware within the module are operable to generate alarms and other control signals when changes in the power level of the received signal are detected. A test access path is provided on the module for use, for example, with an optical time domain reflectometer (OTDR). In one embodiment of the present invention, the interconnection module incorporates a unique physical design arrangement that separates the optical signal processing from the electronic processing into partitioned sub-modules. The optical and electronic sub-modules may advantageously be assembled (and dis-assembled) by means of guides that allow the module halves to slide together.
A unique optical mating connector is provided in the sliding arrangement to join the optical module to an opto-electronic photodetector in the electronic module.
CA002212759A 1996-09-09 1997-08-12 Optical monitoring and test access module Expired - Fee Related CA2212759C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US709,977 1996-09-09
US08/709,977 US5793909A (en) 1996-09-09 1996-09-09 Optical monitoring and test access module

Publications (2)

Publication Number Publication Date
CA2212759A1 true CA2212759A1 (en) 1998-03-09
CA2212759C CA2212759C (en) 2002-01-08

Family

ID=24852107

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002212759A Expired - Fee Related CA2212759C (en) 1996-09-09 1997-08-12 Optical monitoring and test access module

Country Status (5)

Country Link
US (1) US5793909A (en)
EP (1) EP0828356B1 (en)
JP (1) JPH10107739A (en)
CA (1) CA2212759C (en)
DE (1) DE69734045T2 (en)

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Also Published As

Publication number Publication date
DE69734045D1 (en) 2005-09-29
JPH10107739A (en) 1998-04-24
EP0828356B1 (en) 2005-08-24
DE69734045T2 (en) 2006-06-08
CA2212759C (en) 2002-01-08
EP0828356A3 (en) 2002-02-06
US5793909A (en) 1998-08-11
EP0828356A2 (en) 1998-03-11

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