TXC-03452B 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/SONET signal. An E3 line signal is mapped into an STM-1 TUG-3 signal only. The L3M provides a TUG-3 formatted signal for STM-1 operation, or an STS SPE for STS-3 or STS-1 operation.