文章来源：http://www.trcables.com/ 作者：上海嗨润 发布时间：：2018-01-19 14:40 浏览次数：次
Application
These Cat7 S/FTP cables are manufactured in accordance with IEC 61156-5 requirements, can support all Class F applications like Ethernet, Fast Ethernet, Gigabit Ethernet, suitable for voice, data, CATV and sharing application installations up to 600MHz.
Standards
EN 50173-1
EN 50288-4-1
ISO/IEC 11801
IEC 61156-5
IEC 60332-3-24
IEC 60754-2
IEC 61034
Construction
Conductors: Stranded copper conductor.
Insulation: PE.
Twinning: Two coloured insulated conductors twisted together to form a pair.
Individual Screen: Al/polyester tape.
Overall Screen: Tinned copper wire braid.
Outer Sheath: Oil resistant, flame retardant and halogen free LSOH (SHF1).
Core Identification
Pair 1: White, Blue
Pair 2: White, Orange
Pair 3: White, Green
Pair 4: White, Brown
Electrical Properties
|
Maximum DC Loop Resistance |
Ω/km |
138 |
|
Maximum Resistance Unbalance |
|
2% |
|
Minimum Insulation Resistance (500V) |
MΩ.km |
5000 |
|
Nominal Capacitance @800Hz |
nF/km |
43 |
|
Maximum Capacitance Unbalance (pair to ground) |
pF/km |
1500 |
|
Mean Characteristic Impedance @100MHz |
Ω |
100 ± 5 |
|
Nominal Velocity of Propagation |
|
0.76c |
|
Maximum Propagation Delay |
ns/100 m |
450 |
|
Maximum Delay Skew |
ns/100 m |
15 |
|
Maximum Transfer Impedance @1MHz |
mΩ /m |
10 |
|
Maximum Transfer Impedance @10MHz |
mΩ /m |
8 |
|
Maximum Transfer Impedance @30MHz |
mΩ /m |
10 |
|
Minimum Coupling Attenuation |
dB |
85 |
Nominal Transmission Characteristics @20℃
|
F |
Attenuation |
NEXT |
ACR |
Return Loss |
PS-NEXT |
PS-ACR |
ELFEXT |
PS-ELFEXT |
|
MHz |
dB/100m |
dB |
dB/100m |
dB |
dB |
dB/100m |
dB/100m |
dB/100m |
|
1 |
2.0 |
90 |
88 |
|
87 |
85 |
85 |
82 |
|
4 |
3.6 |
90 |
86 |
27 |
87 |
83 |
85 |
82 |
|
10 |
5.5 |
90 |
84 |
30 |
87 |
81 |
79 |
76 |
|
16 |
7.5 |
90 |
82 |
30 |
87 |
79 |
75 |
72 |
|
20 |
7.7 |
90 |
82 |
30 |
87 |
79 |
73 |
70 |
|
31.25 |
9.8 |
90 |
80 |
30 |
87 |
77 |
69 |
66 |
|
62.5 |
14.0 |
86 |
72 |
30 |
83 |
69 |
63 |
60 |
|
100 |
17.9 |
83 |
65 |
30 |
80 |
62 |
59 |
56 |
|
155.0 |
22.4 |
81 |
59 |
26 |
78 |
55 |
57 |
54 |
|
200.0 |
25.6 |
78 |
52 |
25 |
75 |
49 |
53 |
50 |
|
250.0 |
28.8 |
77 |
48 |
25 |
74 |
45 |
51 |
48 |
|
300.0 |
31.6 |
73 |
41 |
23 |
70 |
38 |
47 |
44 |
|
600.0 |
45.7 |
71 |
25 |
20 |
68 |
22 |
44 |
41 |
Mechanical and Thermal Properties
Bending Radius: 8×OD (during installation); 4×OD (fixed installed)
Temperature Range: -40℃ ~ +85℃
Dimensions and Weight
|
Part No. |
Construction |
Nominal |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|
MLN-S/FTPCAT74P27S |
4×2×0.27 |
0.47 |
0.75 |
8.1 |
75 |
