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Wiring Terminals
Connection Example
Host
R
EJ1G
B (+)
A ( )
EJ1G
B (+) 1
A ( )
• The RS-485 connection can be either 1:1 or 1:N. RS-232C connections
can only be 1:1. A maximum of 32 Units (including the host) can be con-
nected in 1:N systems. The maximum total cable length is 500 m. Use
AWG28 (cross-sectional area: 0.081 mm
2
area: 1.309 mm
) shielded twisted-pair cable.
Shield
+
FG
EDU
1
RS-485
2
EDU
Terminator
110 to 125
R
2
Section 2-2
(1/2 W)
2
) to AWG16 (cross-sectional
Cross-sectional area of conductor
AWG28: 0.081 mm
2
AWG16: 1.309 mm
2
23
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