Omron 3G8F7-CRM21, User Manual

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161
CompoNet Network Specifications
Section E-1
Component Cable
Specifications
Refer to the ODVA website for applicable products and manufacturers with
CompoNet specifications.
http://www.odva.org/
E-1-3 Maximum Length and Maximum Number of Connectable Slave
Units for Each Type of Cable
There are restrictions on the maximum lengths of each cable and the
maximum number of connectable Slave Units. Do not exceed these limits.
Round Cable I Round Cable II Flat Cable I Flat Cable II
Type Signal Signal Power Signal Power Signal Power
Conductors
0.75 mm
2
× 2 0.75 mm
2
×
2
0.75 mm
2
×
2
0.5 mm
2
× 2
(twenty, 0.18-
mm strands
twisted at
least once to
25 mm)
0.75 mm
2
× 2
(thirty, 0.18-
mm strands
twisted at
least once to
30 mm)
0.5 mm
2
× 2
(twenty, 0.18-
mm strands
twisted at
least once to
25 mm)
0.75 mm
2
× 2
(thirty, 0.18-
mm strands
twisted at
least once to
30 mm)
Maximum
DCR
(at 20
°
C)
25.1
Ω
/km 25.1
Ω
/km 37.5
Ω
/km 25.1
Ω
/km 37.5
Ω
/km 25.1
Ω
/km
Characteristic
impedance
(at 1 MHz,
20
°
C)
97
Ω
±15% 120
Ω
+10%/
−
15%
−
120
Ω
±10%/
−
120
Ω
+10%/
−
20%
−
Maximum
attenuation
(at 4 MHz,
20
°
C)
60 db/km 60 db/km
−
55 db/km
−
59 db/km
−
Maximum
propagation
delay (6 to 40
MHz, 20
°
C)
6.5 ns/m 6.5 ns/m
−
5.9 ns/m
−
6.3 ns/m
−
Structure Finish OD:
Approx. 6.6 mm Finish OD:
Approx. 7.6 mm
White: BDH
Black or
blue: BDL
Red: BS+
White: BDH
Green or
blue: BDL
Black :BS−
White: BDH Blue: BDL Red: BS+ Black :BS−
10.16
+0.24
−
0.5
2.54
±
0.3
1.27
±
0.2
White: BDH Blue: BDL Red: BS+ Black :BS−
4.5
6
±
0.
2
2.54
±
0.1
Dia.: 2.54
±
0.06
2.27
±
0.5
12.1527
±
0.3
Tw
o, R:
2.1
Tw
o, R:
1