Cabletron Systems Spectrum EMM-E6 Betriebsanweisung PDF herunterladen (Seite 23)

Shielded Twisted Pair Transmitter Specifications

BRIM-F6 User’s Guide Page 4-5

Shielded Twisted Pair Transmitter Speciﬁcations

4.2 Cable Specifications

The FDDI Physical Layer Medium Dependent (PMD), Twisted Pair

Physical Layer Medium Dependent (TP-PMD), and Single Mode Fiber

Physical Layer Medium Dependent (SMF-PMD) ANSI standards deﬁne

cable requirements as follows:

Deassert time 10 µsec typical

350 µsec maximum

Shielded Twisted Pair Transmitter

Amplitude 1.285 Vpk maximum

1.165 Vpk minimum

Rise time 3 nsec minimum

5 nsec maximum

Fall time 3 nsec minimum

5 nsec maximum

Rise/Fall variation 0.5 nsec maximum

Overshoot 5% maximum

Shielded Twisted Pair Receiver

(Signal Detect)

Assert time 10 µsec typical

100 µsec maximum

Deassert time 10 µsec typical

350 µsec maximum

Unshielded Twisted Pair Receiver

(Signal Detect)

BRIM-F Book Page 5 Monday, January 29, 1996 9:26 AM

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 42 43

Keine Kommentare

Cabletron Systems Spectrum EMM-E6 Betriebsanweisung Seite 23