Technical Bulletin

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TECHNICAL
REFERENCE
TR103
ensure the jack-to-plug link transmits Ethernet traffic, the jack module must be terminated using the same wiring
scheme as the patch cord modular plug. Installers appreciate that the termination cap on all Panduit jack
modules includes a wire map label that illustrates the correct conductor positions for T568A and T568B
termination.
Panduit manufactures a complete line of patch cords in Category 6A, 6, and 5e performance categories. These
include UTP, shielded, standard diameter, small diameter (SD), in CM and/or LSZH flame ratings. The table
below summarizes Panduit’s patch cord offerings and the part numbers for each cord wired T568A or T568B.
T568A & T568B Wiring Patch Cord Part Numbers
Patch Cord Type
Standard T568
Wire Scheme
Part Number
Alternate T568
Wire Scheme
Part Number
Cat 6A UTP (CM)
T568B
UTP6A**xx
T568A
UTP6A**xxA/N
Cat 6A UTP (LSZH)
T568B
UTP6AL**xx
T568A
UTP6AL**xxA/N
Cat 6A SD UTP (CM)
T568B
UTP6ASD**xx
T568A
UTP6ASD**xxA/N
Cat 6A SD UTP (LSZH)
T568B
UTP6ASDL**xx
T568A
UTP6ASDL**xxA/N
Cat 6A Shielded (CM/LSZH)
T568B
STP6X**xx
T568A
STP6X**xxA/N
Cat 6 UTP (CM)
T568B
UTPSP**xxY
T568A
UTPSP**xxA/NY
Cat 6 UTP (LSZH)
T568B
UTPSPL**xxY
T568A
UTPSPL**xxA/NY
Cat 6 SD UTP (CM/LSZH)
T568B
UTP28SP**xx
T568A
UTP28SP**xxA/N
Cat 5e UTP (CM)
T568A
UTPCH**xxY
T568B
UTPCH**xxB/NY
Cat 5e UTP (LSZH)
T568A
UTPCHL**xxY
T568B
UTPCHL**xxB/NY
Cat 5e SD UTP (CM/LSZH)
T568A
UTP28CH**xx
T568B
UTP28CH**xxB/N
Cat 5e Shielded (CM/LSZH)
T568A
STPCH**Bxx
T568B
STPCH**BxxB/N
** = Length xx = Color Code /N = Non-Standard Part Number
Panduit’s standard Category 5e patch cords are wired T568A at the factory with standard Category 6A and
Category 6 patch cords are wired T568B. Through extensive validation testing, Panduit confirmed improved Near
End Cross Talk (NEXT) margins were obtained by wiring higher bandwidth cords to T568B. The reason relates to
the pair lays within the patch cable, and how the conductors are manipulated into position within the modular
plugs.