Installation Guide for the Model SW502 and Model SW507 Ethernet Switches
C-4
Cabling Specifications
Table C-3. Specifications of AUI cable
Electrical characteristic
AUI cable specifications
Nominal dc resistance
<
1.75
Ω
per conductor
Pair-to-pair balanced crosstalk
Minimum 40 dB attenuation from 5 MHz to 10 MHz
Differential characteristic impedance
78 +/- 5
Ω
at 10 MHz
<
3
Ω
difference between pairs
Transfer impedance
<
10 m
Ω
@ 500 KHz
<
3 m
Ω
@ 2 MHz
<
3 m
Ω
@ 10 MHz
<
30 m
Ω
@ 100 MHz
Attenuation
<
3 dB from 5 MHz to 10 MHz
Timing jitter
<
1.0 ns introduced by the cable system
Total signal delay
<
257 ns
