Shielded Twisted Pair Cable Specifications - Mitsubishi Electric Melsec QJ71LP21 Reference Manual

3 SPECIFICATIONS

3.1.4 Shielded twisted pair cable specifications

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The following shows the specifications of a shielded twisted pair cable used in the
twisted bus system.
Shielded twisted pair cables that satisfy the following specifications can also be used
even not introduced.
(1) Shielded twisted pair cable specifications
The following table lists the shielded twisted pair cable specifications.
Item
Cross section
Cable
Core
Conductor resistance (20 C )
Insulation resistance (20 C )
Dielectric withstand voltage V-min
Capacitance (1KHz)
Characteristic impedance (100KHz)
1: Applicable only when the communication speed is 1.25Mbps or less.
MELSEC-Q
KNPEV-SB 0.5SQ×1P 1
Shielded twisted pair cable
2-core
39.4 /km or less
10000M •km or more
1000VAC 1 minute
70nF/km or less on average
110±10
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