3 - 11 3 - 11
MELSEC-Q
3 SPECIFICATIONS
3.1.4 Shielded twisted pair cable specifications
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 KNPEV-SB 0.5SQ×1P 1
Cross section
Cable Shielded twisted pair cable
Core 2-core
Conductor resistance (20
C
) 39.4 /km or less
Insulation resistance (20
C
) 10000M •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.
To Next Page
Loading...
