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Berk-Tek makes a shielded cable, type CMX (ETL)
C(ETL) TIA/EIA 568-A5 CAT5E & ISO/IEC 11801
Shielded Outside Service Plant (OSP) cable is
required to meet the National Electrical Code in the USA. When properly grounded
and surge protected, it protects the inner conductors from
lightning/surge-induced overvoltage and accidental contact with power lines
(overcurrent).
I have tried using the Superior-Essex OSP cable
#04-001-34 type BBDN with a great deal of difficulty making reliable RJ45
terminations. The cable conductor jackets are a little too
large to easily fit the LCom shielded RJ45 connectors I have tried. In some
cases, I could see that all eight wires were properly touching the end of
the connectoer housing, but the insulation displacement knives in the connector
still did not contact all of the wires reliably. I found that a 10X jeweler's
loop magnifier is a very useful tool for verifying that the wires are all
properly inserted into the RJ45 prior to crimping the $1.50 connector. My
conclusion, which was verified by Superior-Essex engineers, is that this
cable is not really suitable for RJ45 connectors.
The manufacturer recommends using 110 style
punch-down connectors instead. That is a nice luxury, but most wireless radios
use an RJ45. I would gladly use a surge protector with 110 punch-down
connectors, rather than the Motorola Canopy surge protector. Recently, I
struggled with a Trango SU installation, only to find that the Motorola surge
protector was defective. It tested good, but the Ethernet connection through it
was unreliable.
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