E1 Service Card for STN6200 series The E1 service card is a type of multiplexing structure used on the STN6200 platform that supports 21 x E1 service access and maps E1 to any of the 63 x VC12 in STM1. It can be combined with the service card to converge to OTU1 or OTU2 services.

4 x10G packet access to OTN service card The 4x10G packet access to OTN service card is a 10G service board with Ethernet switching function used in the STN6200 platform, which adopts industry-leading chip technology and fully supports relevant domestic and international standards.

8 x FE/GE packet access to OTN service card 8*FE/GE packet access to OTN service card is a service board with Ethernet switching function used in the STN6200 platform, which adopts industry-leading chip technology and fully supports relevant domestic and international standards. The 8*FE/GE packet access to OTN service board supports 8-port client-side interfaces, which can flexibly meet GE/FE packet services and is suitable for optical transport network applications of metro access and metro aggregation.