Appendix B Specifications
Electrical specifications
314
HST-3000 Ethernet Testing User’s Guide
Electrical specifications
The Ethernet SIMs 10/100/1000 Base-TX interface conforms
to IEEE 802.3 electrical requirements. The electrical specifi-
cations for the 10 Mb/s interface are described in Table 44.
The electrical specifications for the 100 Mb/s interfaces are
described in Table 45.
Table 44 10 Mb/s interface electrical specifications
Parameter Specification
Cable Cat-5 (or better) 100 Ohm STP cable, ≤100 meters.
Twisted pair differential Output voltage
2.2 MIN Vpk, 2.5 TYP Vpk, 2.8 MAX Vpk
Input voltage range
3.3V MAX
Output jitter Per IEEE std 802.3 2005
Input jitter Per IEEE std 802.3 2005
Table 45 100 Mb/s interface electrical specifications
Parameter Specification
Cable Cat-5 (or better) 100 Ohm STP cable, ≤100 meters.
Twisted pair differential Output voltage
0.950 MIN Vpk, 1.000 TYP Vpk, 1.050 MAX Vpk
Input voltage range
3.3V MAX
Output jitter Per IEEE std 802.3 2005
Input jitter Per IEEE std 802.3 2005
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