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5.1 Twisted Bus System (When using twisted pair cable)
5.1.1 Specifications of twisted pair cable
The following shows the specifications of a shielded twisted pair cable used in
the twisted bus system.
Twisted pair cables that satisfy the following specifications can also be used
even not introduced.
Item KNPEV-SB
0.5SQ
1P*1
Cross section
Cable
Shielded twisted pair cable
Core 2-core
Conductor
resistance (20 )
39.4 /km or less
Insulation resistance
(20 )
10M km or more
Dielectric withstand
voltage V-min
1000VAC 1 minute
Capacitance (1KHz)
70nF/km or less on average
Characteristic
impedance
(100KHz)
110 10
*1: Applicable only when the communication speed is 1.25Mbps or less.