![](http://pdfasset.owneriq.net/6/dc/6dc274ec-9b5b-4480-8fe7-1da7f3fb911f/6dc274ec-9b5b-4480-8fe7-1da7f3fb911f-bg1.png)
New dual
SONET/SDH
and DS1/DS3
capability
HP 37717C communications
performance analyzer
Configuration guide
Effective from February 1998
New capability
Dual standard SONET/SDH
DS1, DS3 interfaces
STS-1, STS-3 electrical
OC-1, OC-3, OC-12 optical
OC-12c and STM-4c
STM-0, STM-1, STM-4 optical
Protection switch times
3-year
warranty as
standard