TXC-03452B mapper equivalent, l3m device level 3 mapper.
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L3M Device
Level 3 Mapper TXC-03452B DATA SHEET DESCRIPTION
The L3M maps a DS3 line signal into an STM-1 TUG-3 or STS-3/ STS-1 SPE or STS-1 SPE SDH/SON.
* Add/drop multiplexers
* Digital cross-connect systems
* Broadband switching systems
* Transmission e.
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