pdhman.book : pdhmod.doc 7 Tue Oct 14 15:00:20 1997
7
HP 37717C PDH / DSn Features
Binary Interfaces. Option UH3 (US7)
Binary Interfaces. Option UH3 (US7)
Option UH3 (US7) provides binary NRZ interfaces for the structured PDH module
option UKJ (USA), and the unstructured PDH module option UKK (USB).
The interfaces can operate at any of the standard rates ± 100 ppm.
When used with option UKK (USB), with an external binary clock input, the
interfaces can operate at any rate any rate in the range 700 kb/s to 170 Mb/s.
TTL signal levels, at data and clock ports, and external clock port, are valid from
700 kb/s to 50 Mb/s, 75Ω to ground.
ECL signals, at data and clock ports, and external clock port, are valid from 700 kb/
s to 170 Mb/s, 75Ω to -2V.
The external clock input may be used to clock coded data from the PDH / DSn
transmitter at standard rates. In addition if Option UKK (USB), Unstructured PDH,
is fitted can clock coded data in the range 700 kb/s to 170 Mb/s.
Simultaneous jitter of binary clock and binary data outputs is possible (2, 8, 34 &
140 Mb/s) if Option UHK (USB) or A3K, Jitter Generator, is fitted.
Jitter measurement on the binary clock input is possible (2, 8, 34 & 140 Mb/s ±;100
ppm) if Option UHN, A1M, A1N or A1P, Jitter Measurement, is fitted.
Frequency measurement of the external clock input and binary clock input is
provided.
To Next Page
Loading...
Need help?
General
