Cabletron Systems MT-800, Руководство пользователя

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NETWORK REQUIREMENTS/SPECIFICATIONS
Page 2-14
2.2 SPECIFICATIONS
TRANSMIT
TX-in and TX-out Ports 1-8
Parameter Typical Worst
Value Case
Frequency range: 4-20 MHz 5-15 MHz
Input impedance
differential:
78 ohms 76-80 ohms
common-mode: > 20.0 ohms
Common-mode voltage
range at TX-in:
0-30 Volts 0-5 Volts
Input sensitivity:
±
100 mV
±
75 to 150 mV
Delay time,TX-in (any) to
TX-out
start-up:
50 ns 100 ns
steady-state: 10 ns 20 ns
Waveform
Symmetry TX-out:
±
0.25 ns
±
0.50 ns
Output Voltage into
78 ohms TX-out:
900 mV 550 mV
RECEIVE
RX-in and RX-out Ports 1-8
Parameter Typical Worst
Value
Case
Frequency range: 4-20 MHz 5-15 MHz
Input impedance
differential:
78 76-80 ohms
common-mode: > 20.0 ohms
Front matterBook Page 14 Thursday, January 25, 1996 12:06 PM