A SONET STS-1 SPE is mapped into an STS-1 line. An STS-1 SPE frame consists of 87 columns of 9 bytes, or altogether 783 bytes. There are always 8,000 frames per second. The SPE clock is slower than...

A SONET STS-1 SPE is mapped into an STS-1 line. An STS-1 SPE frame consists of 87 columns of 9 bytes, or altogether 783 bytes. There are always 8,000 frames per second. The SPE clock is slower than the line clock by a factor of 5 x 10-7 .On average, we expect to find one pointer adjustment for how many SONET frames?