RJ-45
The RJ-45 connector is commonly used for network cabling and for telephony applications. It's also used for serial connections in special cases. Here's a look at it:
Pinout for Ethernet
Although used for a variety of purposes, the RJ-45 connector is probably most commonly used for 10Base-T and 100Base-TX Ethernet connections.
| Pin # | Ethernet 10BASE-T 100BASE-TX | EIA/TIA 568A | EIA/TIA 568B or AT&T 258A |
| 1 | Transmit + | White with green strip | White with orange stripe |
| 2 | Transmit - | Green with white stripe or solid green | Orange with white stripe or solid orange |
| 3 | Receive + | White with orange stripe | White with green stripe |
| 4 | N/A | Blue with white stripe or solid blue | Blue with white stripe or solid blue |
| 5 | N/A | White with blue stripe | White with blue stripe |
| 6 | Receive - | Orange with white stripe or solid orange | Green with white stripe or solid |
| 7 | N/A | White with brown strip or solid brown | White with brown strip or solid brown |
| 8 | N/A | Brown with white stripe or solid brown. | Brown with white stripe or solid brown. |
Because only two pairs of wires in the eight-pin RJ-45 connector are used to carry Ethernet signals, and both 10BASE-T and 100BASE-TX use the same pins, a crossover cable made for one will also work with the other.
Also, please note that it is very important that a single pair be used for pins 3 and 6. If one conductor from one pair is used for pin 3 and a conductor from another pair is used for pin 6, performance will degrade. See the following figure.
RJ-45 Pinout for RocketPort
The following chart shows the pinout for RJ-45 connectors used on certain RocketPort serial interface cards (manufactured by Comtrol).
| Pin | Name/Description |
|---|---|
| 1 | Request To Send |
| 2 | Data Terminal Ready |
| 3 | Ground |
| 4 | Transmit Data |
| 5 | Receive Data |
| 6 | Data Carrier Detect |
| 7 | Data Set Ready |
| 8 | Clear To Send |
Pinouts for ISDN
Here's an ISDN BRI U port pinout for a Cisco 750 series router:
| Pin | Function |
|---|---|
| 1 | Not used |
| 2 | Not used |
| 3 | Not used |
| 4 | U interface network connection (tip) |
| 5 | U interface network connection (ring) |
| 6 | Not used |
| 7 | Power (pass-through to S connector) |
| 8 | Ground (pass-through to S connector) |
The following chart shows the pinout for RJ-45 connectors used on certain ISDN S/T interfaces. For more info, see ANSI T1.605.
| Pin | Color | Name/Description |
|---|---|---|
| 1 | White/Orange | N/A |
| 2 | Orange | N/A |
| 3 | White/Green | Receive+ |
| 4 | Blue | Transmit + |
| 5 | White/Blue | Transmit - |
| 6 | Green | Receive - |
| 7 | White/Brown | -48VDC (optional) |
| 8 | Brown | -48VDC Return (optional) |
deskripsi :
versi indonesia
RJ45 adalah jack terdaftar. Sebagai jack terdaftar, telepon RJ45 menentukan konektor laki-laki dan perempuan fisik serta tugas pin dari kabel dalam kabel telepon. The RJ45 asli menggunakan khusus [1] [2] Konektor 8P2C modular mengetik, dengan Pin 5 dan 4 kabel untuk ujung dan cincin saluran telepon tunggal dan Pins 7 dan 8 terhubung ke resistor pemrograman. Hal ini dimaksudkan untuk digunakan dengan modem kecepatan tinggi, dan usang hari ini.
Sebelum namanya RJ45 digunakan untuk merujuk kepada konektor jaringan komputer, RJ45 awalnya standar Telepon-saja. Telepon installer yang kabel telepon jack RJ45 telah terbiasa dengan tugas pin yang merupakan bagian dari standar RJ45. Namun, konektor fisik yang hampir identik untuk jaringan komputer menjadi mana-mana, dan informal RJ45 mewarisi nama karena kesamaan luar biasa. Sementara telepon RJ45 menggunakan "mengetik" berbagai tubuh 8P, yang berarti mungkin memiliki tab ekstra yang konektor RJ45 komputer tidak dapat kawin dengan, perbedaan visual dari 8P Ethernet halus.
Satu-satunya perbedaan lain adalah adanya konduktor ekstra pada kabel, yang tidak dapat dilihat tanpa pemeriksaan sangat dekat. Benar telepon RJ45 konektor adalah varian khusus 8P2C, berarti hanya 2 posisi tengah memiliki konduktor di dalamnya, sedangkan pin 7 dan 8 adalah korslet sebuah resistor pemrograman. Komputer RJ45 adalah 8P8C, dengan semua delapan konduktor hadir.
Maklum, karena telepon 8P konektor RJ45 tidak pernah melihat penggunaan yang luas dan 8P komputer konektor yang cukup terkenal saat ini, RJ45 digunakan hampir secara eksklusif untuk mengacu pada konektor Ethernet-tipe komputer. katalog Elektronik tidak khusus untuk industri telepon mengiklankan 8P8C konektor modular sebagai "RJ45". Hampir semua peralatan elektronik yang menggunakan konektor 8P8C (atau mungkin setiap konektor 8P sama sekali) akan dokumen sebagai konektor "RJ45". Dalam penggunaan umum, RJ45 juga mengacu pada tugas pin untuk kabel terpasang, yang sebenarnya didefinisikan dalam kabel TIA/EIA-568-B standar.
Sebuah boot penguncian untuk RJ45 Modular Plugs dikembangkan untuk mencegah sengaja terputus di fasilitas misi kritis.
english version :
RJ45 is a registered jack. As a registered jack, telephone RJ45 specifies the physical male and female connectors as well as the pin assignments of the wires in a telephone cable. The original RJ45 uses a special[1][2] keyed 8P2C modular connector, with Pins 5 and 4 wired for tip and ring of a single telephone line and Pins 7 and 8 connected to a programming resistor. It is meant to be used with a high speed modem, and is obsolete today.
Before the name RJ45 was used to refer to computer networking connectors, RJ45 was originally a Telephone-only standard. Telephone installers who wired telephone RJ45 jacks were familiar with the pin assignment which was part of the RJ45 standard. However, near-identical physical connectors for computer networking became ubiquitous, and informally inherited the name RJ45 due to the overwhelming similarity. While telephone RJ45 uses a "keyed" variety of the 8P body, meaning it may have an extra tab that a computer RJ45 connector is unable to mate with, the visual difference from an Ethernet 8P is subtle.
The only other difference is the presence of extra conductors in the cable, which cannot be seen without very close inspection. True telephone RJ45 connectors are a special variant of 8P2C, meaning only the middle 2 positions have conductors in them, while pins 7 and 8 are shorting a programming resistor. Computer RJ45 is 8P8C, with all eight conductors present.
Understandably, because telephone RJ45 8P connectors never saw wide usage and computer 8P connectors are quite well known today, RJ45 is used almost exclusively to refer to Ethernet-type computer connectors. Electronics catalogs not specialized to the telephone industry advertise 8P8C modular connectors as "RJ45". Virtually all electronic equipment that uses an 8P8C connector (or possibly any 8P connector at all) will document it as an "RJ45" connector. In common usage, RJ45 also refers to the pin assignments for the attached cable, which are actually defined in the wiring standard TIA/EIA-568-B.
A locking boot for RJ45 Modular Plugs was developed to prevent inadvertent disconnects in mission critical facilities.
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