Dear friend!
This function can be implemented on WDM equipment.
You can configure the required services on the TEM28.
Step 1: Set the working mode of the TEM28 board. One internal port corresponds to one VCTRUNK. A total of five VCTRUNKs need to be set.

Step 2: Activate the physical port. The first four ports have 10 Gbit/s bandwidth.

Step 3: Create five ODU0 cross-connections. After the peer site is configured, trails can be searched out.

Step 4: Configure E-Line services.

Bind five VCTRUNKs at one port.

Perform the same configuration on the opposite station.
Thanks!