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When the S-2 was first introduced, the rise-time specification was 50 ps, but that | When the S-2 was first introduced, the rise-time specification was 50 ps, but that | ||
was not achieved in practice, so the rise-time specification was revised to be 75 ps. | was not achieved in practice, so the rise-time specification was revised to be 75 ps. | ||
The interface between the GR-874 connector and the printed circuit board is described in US Patent 3,426,311. | |||
{{BeginSpecs}} | {{BeginSpecs}} |