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Aluminum
Shield | Single Jacket | AirCore
Outside Plant Copper Cable - Exchange Cable
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Description
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Conductors:
Solid annealed copper in 19, 22, 24 and 26 AWG. |
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Insulation:
Conductors are insulated with solid polyolefin, color
coded in accordance with industry standards. |
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Twisted Pairs:
Individual conductors are twisted into pairs with
varying lay lengths to minimize crosstalk and specific color
combinations to provide pair identification. |
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Core Assembly: Cables of 25 pairs or less are assembled into a
cylindrical core. Cables larger than 25 pairs are assembled into units,
which are then used to assemble the core. Units are individually
identifiable by color coded unit binders. |
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Core Wrap: A non-hygroscopic, dielectric tape is applied over the core
assembly to provide protection for the core.
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Shielding: A corrugated, copolymer coated, 8-mil aluminum tape is
applied longitudinally with an overlap.
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Jacket:
A black, linear low-density polyethylene jacket is
applied overall. The jacket provides a tough protective covering
designed to withstand exposure to direct sunlight, atmospheric
temperature changes and stresses expected in standard installations.
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Jacket Markings:
Information such as manufacturer’s
identification, pair count AWG, product identification and a telephone
handset is printed at 2 ft. intervals on the cable jacket. Sequential
footage markings are printed at alternate 2 ft. intervals.
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Optional Designs: ALFOUR® cables are also available with an internal screen
for use with carrier T1 systems.
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Applications
4SProducts
ALFOUR® cables are designed primarily for aerial use. In addition,
they are also commonly used for buried applications. In
an aerial
application, the cable must be attached to a support strand
(messenger). ALFOUR® cables, in 19, 22, 24 and 26 AWG, are capable of
meeting the electrical requirements of 100 ohms, Category 3, Backbone UTP cables as specified in TIA/EIA-568-A. |
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Qualifications & Approvals
Manufactured
to meet requirements of ANSI/ICEA S-85-625-1996; Formerly
manufactured to REA Specification PE-22 (PE-22 was
deactivated by RUS and is superseded by ANSI/ICEA
specifications).
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Electrical
Specifications |
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Average
Mutual Capacitance at 1000 Hz |
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Total
No. of Pairs |
nF/mile |
nF/km |
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12
or Less |
83
± 7 |
52
± 4 |
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Over
12 |
83
± 4 |
52
± 2 |
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Conductor
Size |
Minimum
Insulation Resistance |
Max
Average Attenuation |
Max
Conductor
Resistance |
Resistance
Unbalance |
Dielectric
Strength
DC Potential –
Volts |
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68 °F (20 °C) |
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68 °F (20 °C) |
772
kHz |
68
°F
(20 °C)
Ohms |
Maximum |
Minimum |
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AWG |
mm |
gigohm
/ mile |
gigohm
/ km |
dB/kft |
dB/km |
mile |
km |
Ave
% |
Individual
Pair % |
Cdr.
to Cdr. |
Cdr
to Gmd. |
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19 |
0.90 |
1.0 |
1.6 |
3.3 |
10.9 |
45.0 |
28.0 |
1.5 |
5.0 |
5,000 |
10,000 |
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22 |
0.64 |
1.0 |
1.6 |
4.6 |
15.3 |
91.0 |
56.5 |
1.5 |
5.0 |
4,000 |
10,000 |
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24 |
0.50 |
1.0 |
1.6 |
5.7 |
19.4 |
144.0 |
89.5 |
1.5 |
5.0 |
3,000 |
10,000 |
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26 |
0.40 |
1.0 |
1.6 |
7.2 |
23.6 |
232.0 |
144.2 |
1.5 |
5.0 |
2,400 |
10,000 |
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Capacitance
Unbalance Pair to Pair |
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Pairs |
Maximum
Individual |
Maximum
RMS |
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pF/kft |
pF/km |
pF/kft |
pF/km |
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12
or Less |
80 |
145 |
- |
- |
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than 12 |
80 |
145 |
25 |
45 |
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Capacitance
Unbalance Pair to Ground |
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Pairs |
Maximum
Individual |
Maximum
Average |
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pF/kft |
pF/km |
pF/kft |
pF/km |
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12
or Less |
800 |
2625 |
- |
- |
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more
than 12 |
800 |
2625 |
175 |
574 |
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Near
End Crosstalk (NEXT) |
150
kHz |
772
kHz |
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P.S.WUNEXT
mean (dB) |
58 |
47 |
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P.S.WUNEXT
worst pair (dB) |
53 |
42 |
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Far
End Crosstalk at 150 kHz |
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Conductor
size (AWG) |
19 |
22 |
24 |
26 |
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P.S.
ELFEXT mean (dB/kft) |
65 |
63 |
63 |
61 |
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P.S.
ELFEXT worst pair (dB/kft) |
59 |
57 |
57 |
57 |
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Far
End Crosstalk at 772 kHz |
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Conductor
size (AWG) |
19 |
22 |
24 |
26 |
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P.S.
ELFEXT mean (dB/kft) |
51 |
49 |
49 |
47 |
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P.S.
ELFEXT worst pair (dB/kft) |
45 |
43 |
43 |
43 |
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