Rs-422/485 Cable Specifications - Mitsubishi Melsec-L Series User Manual

6.3.2 RS-422/485 cable specifications

Number of pairs
Conductor resistance (20 °C)
Insulation resistance
Dielectric strength
Electrostatic capacitance (1 kHz)
Characteristic impedance (100 kHz)
Recommended conductor size
Temperature rating
6 - 10
The following shows the RS-422/485 cable specification.
(1) Use a cable that satisfies the following specification for the RS-422/485 cable
(cable to connect the C24 terminal block) within 1200m in length.
Item
Cable type
Diameter
Type
Material
[Recommended cable]
SPEV (SB)-MPC-0.2
SPEV (SB)-0.2
SPEV (SB)-0.3
The recommended cables above have the same electrical characteristics, but
different external diameter and internal wire colors.
(2) The total distance must be within 1200 m when two or more device are connected
in a 1:n or m:n configuration.
3P ..... (MITSUBISHI CABLE INDUSTRIES, Ltd.)
3P ..... ..... ... (MITSUBISHI CABLE INDUSTRIES, Ltd.)
3P .... ..... .... (MITSUBISHI CABLE INDUSTRIES, Ltd.)
6 SETTING AND WIRING
Description
Shielded cable
3
88.0 /km or less
10000 M - km or more
500 V DC, 1 minute
60nF/km or less on average
110 ± 10
2 2
0.2 mm to 0.75 mm
AWG22 to AWG16
Stranded
Copper
60°C or more
6 - 10