Making Measurements
Monitoring Signaling Bits
| Monitoring Signaling Bits |
Description | The HP 37718A receiver can be used to monitor the state of signaling |
| bits in received 2 Mb/s signals with |
| (PCM30 or PCM30CRC) and DS1 structured signals. |
2.048 Mb/s | For 2 Mb/s signals with |
Results | the values of A,B,C,D signaling bits in all 30 channels is given. |
DS1 Results | D4 and |
| A table simultaneously showing the state of the A and B signaling bits in |
| the 6th and 12th frames of a superframe is given. Each frame contains |
| 24 timeslots. In |
| you set bit A or B to alternate, the displayed bit changes to an A, to |
| indicate that the bit is alternating from 1 to 0. The same signaling is |
| transmitted in all channels. |
| ESF Payloads |
| A table simultaneously showing the state of the A, B, C and D signaling |
| bits in the 6th, 12th, 18th and 24th frames of a superframe is given. |
| Each frame contains 24 timeslots. |
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