Zte Unitrans ZXMP M600 Technical Instructions page 23

The line signals meet the requirements specified in ITU-T recommendation
G.694.2.
2. Service convergence platform
It converges multiple channels of low rate signals into one wavelength for
transmission and implements the reserve process.
The low rate signals include standard STM-1, STM-4 signals with the maximum
rate being 2.5Gbit/s on the line.
3. Multiplexing/demultiplexing platform
It includes a multiplexing part and a demultiplexing part.
1) Multiplexing part: It couples multiple channels of optical signals with different
wavelengths from the optical transfer platform and service convergence platform
to a piece of optical fiber for transmission.
2) Demultiplexing part: It divides the multiplexing optical signals from the line
side according to their different wavelengths and sends them to different optical
transfer platform and service convergence platform.
4. Monitor platform
1) Collecting, processing and reporting the configuration, alarm and performance
information of the various platforms
2) Receiving the command from the EMS and transferring it to the destination
board
3) Using a specified monitoring optical channel to transparently transmit the
network management information. The wavelength of the monitoring channel
can be either 1310nm or 1510nm.
5. Power supply platform
It converts in DC input into +5V or -48V DC power to provide power for
various platforms.
Options –48V, +24V and –60V are available for DC power supply, and 1+1
warm backup are practicable.
1-7
Chapter 1 System Overview