Tài liệu Optical Components pdf

Optical components, such as wavelength division multiplexers WDMs and tap monitors, add capacity and increase reliability with minimal installation cost and time.. Wavelength division mu

ADC’s Value-Added Module (VAM) System provides the flexibility and functionality to easily

incorporate optical components into the network Optical components, such as wavelength division multiplexers (WDMs) and tap monitors, add capacity and increase reliability with minimal installation cost and time Wavelength division multiplexers enable the service providers to double the capacity

of the existing network without installing new fiber; tap monitors provide easy access to the network for testing and monitoring without interruption of service

While the most common usage of the VAM is in the central office, these same components can be used successfully in the outside plant environment For example, remote locations with minimal fiber capacity can be connected through an OSP VAM application, eliminating the need to dig and install new fiber Below is a sketch of (two) remote locations connected to a central office using ADC’s FSS96 below ground cross-connect enclosure

Provide Faster Service Delivery

Central Office

VAM, in an

FDF, NGF or

OMX ™ Frame

The VAM protects

the WDM devices

required to

mux/demux the

signals to/from the

remote locations

Outside Plant

WDM in an FSS96 Cross-Connect Enclosure muxes the signals for transport

on a single fiber to the CO and demuxes the signals to be routed to the correct location

Remote location

1310 nm Signal

Remote location

1550 nm Signal

1310/1550 combined on existing fiber

Outside Plant

Below Ground or Above Ground Cross-Connect Cabinet Examples:

ACE-200, ACE-400

or BGX cabinets

90%-98% of the signal passed to CO, subscriber, or handoff

2%-10% of the signal available for non-intrusive testing

Signal from CO

or handoff

The VAM housing protects the component from mechanical damage; however, the component itself

is well-suited for the outside plant environment Splitters and WDM components require no

electronics and they are rated for severe environments from -40°C to +85°C with a relative humidity less than 80% Tap monitors have the same environmental rating; however they are suited for environments where network support personnel need easy, non-intrusive access to the network Tap monitors increase the ability to monitor and test the network at the edge of the network or in remote locations The sketch below shows a tap monitor application in an outside plant

environment

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Value-Added Modules in the Outside Plant Environment

FSS Cross-Connect Enclosure

VAMs can be deployed in all ADC outside plant enclosures In the FSS cross-connect enclosure, the

VAM is installed where the splice trays would normally be mounted They can be added

incrementally in the field as additional service is required The FSS cross-connect enclosure houses a combination of splice trays and VAMs and should be ordered as a fully configured system that

includes pigtails, splice trays, VAMs and cable termination/blocking kits per customer specification

Please contact ADC technical support to configure the FSS cross-connect enclosure when optical

components are added to increase the functionality of the enclosure

1

2 4

6

Figure 1 FSS-WH2U2UAA1A Shown with (6) VAMs Note that #2 VAM

is shown without pigtails Pigtails are

numbered on connector boots for easy

identification when optical components

are housed inside.

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Above Ground and Below Ground Cross-Connect Enclosures

The VAM housing is installed in a chassis when used in the above or below ground cabinets The

VAM is available in a “single-high” or “dual-high” housing A single-high VAM has (6) front ports

for easy access to the optical components inside A single-high VAM will house (2) WDM devices, (2) tap monitors or (1) 1x4 splitter A dual-high VAM provides up to (18) ports for a combination of

optical components or a 1x32 splitter Both the single-high and dual-high VAM feature the

removable retainer for easy access to the internal connectors

The outside plant cabinets are designed to house either of the following chassis:

• 4" high x 19" wide chassis, Catalog # OSP-MINSPI (See Figure 2)

• 7" high x 19" wide chassis, Catalog # OSP-STDSPI (See Figure 3 for ACE-200 example)

Figure 3 OSP-STDSPI Chassis Shown in an ACE-200 Above Ground Cross-Connect Enclosure shown with the door open

Figure 2 OSP-MINSPI Chassis Capacity:

(6) – Single-high VAMs (2) – Dual-high VAMs

30"

(76.2 cm)

51"

(129.54 cm)

19.0"

(48.26 cm)

4.0"

(10.16 cm)

ADC Telecommunications, Inc., P.O Box 1101, Minneapolis, Minnesota USA 55440-1101

Specifications published here are current as of the date of publication of this document Because we are continuously improving our products, ADC reserves the right to change specifications without prior notice At any time, you may verify product specifications by contacting our headquarters office in Minneapolis ADC Telecommunications, Inc views its patent portfolio as an important corporate asset and vigorously enforces its patents.