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Fiber Optic Solutions

fiber optic transceiver special topic

Certificate

FCC

 

CE

 

ROHS

Guarantee

Except products belongs to Bargain Shop section, all products are warranted by SOPTO only to purchasers for resale or for use in business or original equipment manufacturer, against defects in workmanship or materials under normal use (consumables, normal tear and wear excluded) for one year after date of purchase from SOPTO, unless otherwise stated...

Return Policies

Defective products will be accepted for exchange, at our discretion, within 14 days from receipt. Buyer might be requested to return the defective products to SOPTO for verification or authorized service location, as SOPTO designated, shipping costs prepaid. .....

Applications

Multiplexers can be used to connect PBX, Hot line and other devices of network from central site to user site through fiber optical cable.Multiplexer Application

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What are Disadvantages of PDH?

 

The disadvantages of PDH mainly include seven points shown as below:

 

Video+Audio Multiplexer

 

1. No world standard format.

2. Plesiochronous system, i.e. signals aren’t derived from a common clock.
3. Inability to identify individual channels in a higher order bit stream.
4. No standardized definition of bit rates higher than 274.176 Mbps.
5. No standardized network management system.
6. Lack of in-band capacity for network management.
7. No standardized network protection mechanisms.