Modularstik 8P8C

Ikke at forveksle med RJ45.

Stikkene på dette netværks-patchkabel er af typen 8P8C, som er termineret efter T568B i begge ender.^[1]

Modularstik 8P8C (fra engelsk Modular connector 8 Position 8 Contact, Modular connector 8P8C eller kort 8P8C, også udbredt forkert benævnt RJ-45, fordi dele af teleindustrien gav 8P8C det uformelle navn RJ45s.^[2]) – er betegnelsen for den 8-benede stiktype, der oftest benyttes til UTP-kabler, der kendes fra Ethernet som er den mest udbredte netværkstype i hjem og kontorbygninger.

Modularstik 8P8C er ét af flere modularstik.

Anvendelser

Modularstik 8P8C termineres typisk med stikstandarderne T568A eller T568B^[1] ben/par tildelinger som defineret i TIA/EIA-568-B^[3], når anvendt til PDS. Af samme grund har 8P8C-stikket fået det uformelle navn PDS-stik.

Det skal bemærkes at 8P8C-modularstikket fås i mange udgaver, som f.eks. er beregnet til kordelte (bløde) eller massive ledningsledere, skærmet (STP) eller uskærmet (UTP) brug, og herudover kan være specificeret til at overholde de elektriske standarder Category 3, Category 5, Category 5e, Category 6 og Category 6A.

RJ48, RJ49 og RJ61 er andre konnekteringsstandarder, som kan anvendes på stikket 8P8C.

Modularstik 8P8C bliver også anvendt til flere forskellige EIA-232 (RS-232) forbindelsesvarianter. ^[4] ^[5] ^[6] ^[7] ^[8]

Kilder/referencer

^ ^a ^b "cableorganizer.com: What's the Difference Between T568A and T568B?". Arkiveret fra originalen 2. maj 2009. Hentet 22. juni 2009.
^ 29 Apr 2017, arrow.com: RJ45 or 8P8C Connectors? Finding the True Ethernet Standard Citat: "...As a result of the close similarities, “RJ45” became the designated informal misnomer for any eight-pinned jack (8P8C modular connector) used in computer networking (Ethernet). The differences between 8P8C connectors and RJ45 connectors are shown in the following diagram:...The connectors are not entirely compatible with one another because of the keying used in RJ45; 8P8C connectors can plug into RJ45 receptacles, but the inverse is not true. However, because the connectors resemble each other so closely in appearance, the groups and individuals who transitioned from telephone networking to computer networking started to mistakenly call the unkeyed 8P8C connectors “RJ45s” and the terminology quickly caught on. Therefore, what most of the industry refers to as RJ45 connectors are in fact 8P8C modular connectors. Today, almost all electronic equipment using 8P8C connectors will show documentation for RJ45 connectors, which is technically incorrect...", backup
^ en:TIA-568B#T568A_and_T568B_termination
^ epanorama.net, Tomi Engdahl: Wiring RS-232 to RJ45 connector Citat: "...There is no standard, but many applications use the pinout of the 9-pin D-connector and just forget about pin 9..."
^ jneuhaus.com: Neuhaus "Standard" for Interconnection of Serial Devices. RJ45 8-pin modular connectors for RS-232
^ nullmodem.com: RJ-45 Pinout for RocketPort Et stykke nede: Citat: "...The following chart shows the pinout for RJ-45 connectors used on certain RocketPort serial interface cards (manufactured by Comtrol)..."
^ yost.com: Yost serial device wiring: RS232 on RJ45 (I stedet for RJ45 burde der have stået 8P8C), yost.com: Yost Serial Device Wiring Standard
^ Cisco: Cabling Guide for Console and AUX Ports

Se også

RJ-11 – en konnekteringsstandard, der anvendes på modularstik 6P4C, der bruges på telefoners telefonlinje.
RJ22, RJ10 og RJ9 er konnekteringsstandarder, som kan anvendes på modularstik 4P4C (anvendes på telefon håndsætsstik).

Wikimedia Commons har flere filer relateret til Modular connectors

Spire

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[T568-1] "cableorganizer.com: What's the Difference Between T568A and T568B?". Arkiveret fra originalen 2. maj 2009. Hentet 22. juni 2009.

[2] 29 Apr 2017, arrow.com: RJ45 or 8P8C Connectors? Finding the True Ethernet Standard Citat: "...As a result of the close similarities, “RJ45” became the designated informal misnomer for any eight-pinned jack (8P8C modular connector) used in computer networking (Ethernet). The differences between 8P8C connectors and RJ45 connectors are shown in the following diagram:...The connectors are not entirely compatible with one another because of the keying used in RJ45; 8P8C connectors can plug into RJ45 receptacles, but the inverse is not true. However, because the connectors resemble each other so closely in appearance, the groups and individuals who transitioned from telephone networking to computer networking started to mistakenly call the unkeyed 8P8C connectors “RJ45s” and the terminology quickly caught on. Therefore, what most of the industry refers to as RJ45 connectors are in fact 8P8C modular connectors. Today, almost all electronic equipment using 8P8C connectors will show documentation for RJ45 connectors, which is technically incorrect...", backup

[3] :TIA-568B#T568A_and_T568B_termination

[4] rama.net, Tomi Engdahl: Wiring RS-232 to RJ45 connector Citat: "...There is no standard, but many applications use the pinout of the 9-pin D-connector and just forget about pin 9..."

[5] uhaus.com: Neuhaus "Standard" for Interconnection of Serial Devices. RJ45 8-pin modular connectors for RS-232

[6] ullmodem.com: RJ-45 Pinout for RocketPort Et stykke nede: Citat: "...The following chart shows the pinout for RJ-45 connectors used on certain RocketPort serial interface cards (manufactured by Comtrol)..."

[7] yost.com: Yost serial device wiring: RS232 on RJ45 (I stedet for RJ45 burde der have stået 8P8C), yost.com: Yost Serial Device Wiring Standard

[8] Cisco: Cabling Guide for Console and AUX Ports

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