B-20
FX Series PLC User's Manual - Data Communication Edition
N:N Network
4 Wiring
4.2 Selecting Cables and Terminal Resistors
4.2.3 Connecting cables
1. European type terminal block
The FX3G-485-BD-RJ terminal block is used for grounding.
The other options use shielded twisted pair cables for connecting communication equipment operating in
accordance with RS-485.
The table below shows applicable cables and tightening torques.
Do not tighten terminal screws with a torque outside the above-mentioned range.
Failure to do so may cause equipment failures or malfunctions.
With regard to the cable end treatment, use a stranded cable or solid cable as it is, or use a bar terminal with
insulating sleeve.
FX
3G-485-BD-RJ, FX2N-485-BD, FX1N-485-BD and FX2NC-485ADP cannot use a bar terminal with insulating
sleeve.
• When using a stranded cable or solid cable as it is
- Twist the end of a stranded cable so that wires do not get barbed.
- Do not plate the end of the cable.
• When using a bar terminal with insulating sleeve
Because it is difficult to insert a cable into an insulating sleeve
depending on the thickness of the cable sheath, select the proper cable
according to the outline drawing.
<Reference>
*1. Old model name : CRIMPFOX ZA 3
*2. Old model name : CRIMPFOX UD 6
Cable size when
one cable is
connected
Cable size when
two cables are
connected
Bar terminal with
Insulating sleeve
(cable size)
Tightening
torque
Tool size
A B
FX
3U-485-BD
FX
3G-485-BD
FX
3U-485ADP
(-MB)
AWG22 to
AWG20
AWG22
Applicable
(AWG22 to AWG20)
0.22 to 0.25
N·m
0.4 (0.01") 2.5 (0.09")
FX
3G-485-BD-
RJ
AWG20 to AWG16 Not applicable
0.5 to 0.6
N·m
0.6 (0.03") 3.5 (0.14")
FX
2N-485-BD
FX
1N-485-BD
AWG26 to AWG16 Not applicable
0.5 to 0.6
N·m
0.6 (0.03") 3.5 (0.14")
FX
2NC-485ADP
AWG26 to
AWG16
AWG26 to
AWG20
Not applicable
0.4 to 0.5
N·m
0.6 (0.03") 3.5 (0.14")
Manufacturer Model name Caulking tool
Phoenix Contact Co., Ltd. AI 0.5-8WH
CRIMPFOX 6
*1
(or CRIMPFOX 6T-F
*2
)
FX
3G
-485-BD, FX
3U
-485-BD,
FX
3U
-485ADP(-MB)
Approx. 9 mm
(0.35")
FX
3G
-485-BD-RJ,
FX
2N
-485-BD, FX
1N
-485-BD
Approx. 6 mm
(0.23")
FX
2NC
-485ADP
Approx. 8 mm
(0.31")
8 mm (0.31")
Contact area
(Crimp area)
14 mm
(0.55")
2.6 mm
(0.1")
Insulating sleeve
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