Vecima Networks (TSX:VCM) says it has signed a supply agreement with a tier 1 MSO to support its network-wide all-digital video conversion across the United States. The supply agreement covers Vecima's Terrace TC600E product line, the latest edition of the Terrace family of products. The TC600E platform adds support for MPEG-4 and HD inputs and more than four times input capacity of previous models.