C018Asource checked
The common RJ45-style modular connector family has eight positions and eight contacts.
E018 · Source-scoped pinout variants
8P8C modular connector (commonly called RJ45) engineering reference
T568A/T568B termination convention, kept separate from Ethernet service, link rate, cable category and PoE capability.
Source checked · no independent review claimed · Fabrication approved: no
Orientation
How to read this profile
Front view of the jack, following the orientation described by the source. Contact numbers 1 through 8 are shown left-to-right in the V35 schematic.
Source-scoped identification facts
Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.
| Nominal contacts | 8S020 · S021 · S1918-position modular jack termination reference; nominal engineering count, not automatically positions, population or a device wiring map. 8-position modular jack termination reference |
|---|---|
| Positions / cavity span | 8 (Claim C018A); 8 (Claim C018C); 8 (8P8C); 8 (6-569278-3 / MP-5EU-1)S020 · S191 · S869Separate exact examples; retain each value’s source, role, axis and part scope. Consumer identification / documented standard or product class only T568A/B pair-to-pin termination convention viewed from the front of the jack; not Ethernet-service, cable-category, link-rate or PoE proof Exact named example 6-569278-3 / MP-5EU-1: 8P8C modular plug kit. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Correction applies to this named plug example; preserve separate generic jack orientation and other role values. No T568 wiring map derived. |
| Populated contacts | 8 (8P8C convention); 8 (6-569278-3 / MP-5EU-1)S020 · S869Separate exact examples; retain each value’s source, role, axis and part scope. Consumer identification / documented standard or product class only Exact named example 6-569278-3 / MP-5EU-1: 8P8C modular plug kit. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Correction applies to this named plug example; preserve separate generic jack orientation and other role values. No T568 wiring map derived. |
| Contact pitch | 1.02 mm Manufacturer Pitch-Mating Interface (Molex 955012881 board jack)S982Current primary-source scoped values; named examples remain separate and unknowns are not inferred from illustrations. Exact Molex 95501-2881 right-angle 8P8C board jack; manufacturer mating-interface pitch only, separate from plug geometry or all modular parts. |
| Connector role | socket; plug (6-569278-3 / MP-5EU-1)S020 · S021 · S191 · S869Separate exact examples; retain each value’s source, role, axis and part scope. 8-position modular jack termination reference Exact named example 6-569278-3 / MP-5EU-1: 8P8C modular plug kit. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Correction applies to this named plug example; preserve separate generic jack orientation and other role values. No T568 wiring map derived. |
| Mounting | IDC termination (6-569278-3 / MP-5EU-1)S869Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example 6-569278-3 / MP-5EU-1: 8P8C modular plug kit. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Correction applies to this named plug example; preserve separate generic jack orientation and other role values. No T568 wiring map derived. |
| Manufacturer | CommScope (6-569278-3 / MP-5EU-1)S612 · S613Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Named plug kit, not a completed lead, installed-port function, cable-category test or PoE verdict. No equivalence to similarly numbered TE parts is asserted. |
| Series | 8P8C modular (6-569278-3 / MP-5EU-1)S612 · S613Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Named plug kit, not a completed lead, installed-port function, cable-category test or PoE verdict. No equivalence to similarly numbered TE parts is asserted. |
| Exact part / implementation | 6-569278-3 / MP-5EU-1 (6-569278-3 / MP-5EU-1)S612 · S613Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Named plug kit, not a completed lead, installed-port function, cable-category test or PoE verdict. No equivalence to similarly numbered TE parts is asserted. |
| View convention | Front view of the jack, following the orientation described by the source. Contact numbers 1 through 8 are shown left-to-right in the V35 schematic.S020 · S021 · S191Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Existing engineering orientation text; source/part/view remains controlling. |
Not recorded: Contact rows, Dimensions / axis, Contact gender / arrangement, Coupling / latch, Keying / polarization, Shell / form, Recorded markings. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.
Recorded variant and source limits
- V35 intentionally does not turn this termination map into proof of Ethernet, console, PoE or any specific link rate.
- Mechanical modular-jack/plug tolerances are not published.
- T568A: Receptacle contact numbers per Leviton Table 1. The manufacturer's figures show the rear/IDC termination side, analogous to a solder-side wiring view; they are not a consecutive left-to-right face diagram.
- T568B: Receptacle contact numbers per Leviton Table 1. The manufacturer's figures show the rear/IDC termination side, analogous to a solder-side wiring view; they are not a consecutive left-to-right face diagram.
Pins & wiring
Pinout
Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.
What the status labels mean
- Confirmed
- Recorded research passes agree within this variant; this is not independent human review or hardware validation.
- Single source
- Only one underlying document, or one pass, supports this assignment.
- Device-specific
- Supported for the named equipment or wiring only. Check your device’s manual.
- Unverified
- Missing or conflicting evidence. Do not wire from this row.
- Not connected
- The source explicitly says NC, no contact or no pin for this wiring.
Unknowns stay unknown.
- V35 intentionally does not turn this termination map into proof of Ethernet, console, PoE or any specific link rate.
- Mechanical modular-jack/plug tolerances are not published.
Your next step
Use the detail without guessing past its limits.
Source trail
Claims and sources
C018Bsource checked
A manufacturer’s RJ45 console cable is a concrete example of this shape being used for serial console, not Ethernet.
C018Csource checked
T568A and T568B use the same eight-position modular termination but swap the green and orange pairs: T568A places green on pins 1–2 and orange on 3 and 6; T568B places orange on 1–2 and green on 3 and 6.
Fluke Networks · Differences Between Wiring Codes T568A vs T568B ↗
C801Wsource checked
T568A: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.
C801Xsource checked
T568B: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.
C018Wsource checked
Molex identifies 95501-2881 as a right-angle 8P8C modular jack. Its chart separates 1.02 mm mating-interface pitch from 1.27 mm termination-interface pitch.
Molex · Molex 95501 modular-jack series chart, exact4/4,6/4,6/6,8/8 variants ↗