THREE PHASE ELECTRIC     1 BISHOP RD.   AYER, MA     01432           (978)-952-0050   |   (978)-952-0045     EMAIL: tpejobs@gmail.com Residential Electrical Services in Massachusetts
Electricians in MA
Wiring Massachusetts Families and Business since 1985
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Bathroom Renovations

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Single, double & three-way switches

100-200 Amp Upgrades

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Seasonal Electrial Safety


Residential Electrical Services in Massachusetts

Local Area Network Ethernet/LAN

We install and certify speed ratings in local area networks.
A basic installation utilizes a conductivity meter which tests the "pin out" of the RJ45 jacks. A comprehensive test utilizes special test equipment which will pass one gigabit of data at 350MHz (IEEE 202.3AB) [1000base-T].
We test for attenuation, cable length, EMI interference and for TIA568/570 interconnect standards.

FAQs

How does the Cat5 cable work?
There is a twist in the cable assemblies for each pair of wires (4), typically 3 for every inch. There is a different twist rate for each pair. This twist interchanges the north-south magnetism in the cable assembly, which minimizes magnetic induction of data (cross-talk).

What is the pin out for Cat5 cable?
There are two 568A and 568B. "A" is typically a telecommunications standard and "B" is used for 1 gigabit switch.


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Saturday & Sunday
by Appointment

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THREE PHASE ELECTRIC 1 BISHOP RD.     AYER, MA    01432    (978)-952-0050 | (978)-952-0045     EMAIL: tpejobs@gmail.com

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Three Phase Electric's major areas of service:

North Shore MA | South Shore MA | Metro West MA
Acton, MA   Arlington, MA   Ayer, MA   Andover, MA   Ashland, MA   Auburn, MA   Bedford, MA   Berlin, MA   Belmont, MA   Billerica, MA   Bolton, MA   Boston, MA   Boxboro, MA   Brookline, MA   Carlisle, MA   Cambridge, MA   Clinton, MA   Concord, MA   Framingham, MA   Franklin, MA   Fitchburg, MA Groton, MA   Harvard, MA   Hudson, MA   Lexington, MA   Lincoln, MA   Littleton, MA   Leominster, MA   Lunenburg, MA   Marlboro, MA   Carlisle, MA   Natick, MA   Newton, MA   North Andover, MA   Northborough, MA   Stow, MA   Shrewsbury, MA Shirely, MA   Southborough , MA   Sterling, MA   Sudbury, MA   Townsend, MA   Tewksbury, MA   Watertown, MA   Waltham, MA   Worcester,MA