描述

1786-RPAB 模塊化中繼器適配器

艾倫-布拉德利1786-RPA是一種ControlNet模塊化中繼器適配器。該模塊是一個控制網(wǎng)通信網(wǎng)絡(luò)附件，主要用于擴(kuò)展控制網(wǎng)網(wǎng)絡(luò)的長度，以及組裝不同的拓?fù)?，如星型，環(huán)形，線性或點(diǎn)對點(diǎn)拓?fù)?。該中繼器模塊也可用于物理轉(zhuǎn)換控制網(wǎng)電纜介質(zhì)從同軸電纜到光纖和光纖到控制網(wǎng)同軸電纜。

控制網(wǎng)是一種工業(yè)通信協(xié)議，用于設(shè)備的多點(diǎn)通信。這些設(shè)備可以是ControlNet客戶端模塊、控制器、可視化系統(tǒng)和網(wǎng)關(guān)的組合?？刂凭W(wǎng)網(wǎng)絡(luò)由稱為主干的主要通信高速公路組成，其中設(shè)備或節(jié)點(diǎn)通過控制網(wǎng)水龍頭連接。ControlNet網(wǎng)絡(luò)支持最遠(yuǎn)1000米的距離。如果網(wǎng)絡(luò)超過這個最大距離，則可以使用1786-RPA。

1786-RPA兼容使用1786-RPCD中繼器雙銅模塊、1786-RPFS中繼器短距離光纖模塊、1786-RPFM中繼器中距離光纖模塊、1786-RPFRL光纖環(huán)形中繼器模塊和1786-RPFRXL光纖環(huán)形中繼器模塊。最大允許的適配器串聯(lián)連接是20 1786- RPA。

此中繼器適配器模塊支持直接安裝到安裝板或使用DIN導(dǎo)軌。與DIN導(dǎo)軌安裝相比，直接面板安裝提供了更高的抗振動和沖擊能力。該模塊支持水平或垂直方向，并由外部電壓供應(yīng)范圍18-36VDC供電。

該中繼器適配器模塊提供一(1)個可移動端子塊用于輸入電源連接，一個(1)個75歐姆終端電阻和兩個(2)個DIN導(dǎo)軌鎖。

1786-RPAB中繼器適配器需要24伏直流輸入功率。在5vdc時，它可以提供最大1.6 a的背板輸出電流。Allen-Bradley 1786-RPAB中繼器適配器具有不同的功能，例如擴(kuò)展網(wǎng)絡(luò)長度，執(zhí)行從同軸或銅介質(zhì)到光纖介質(zhì)的網(wǎng)絡(luò)介質(zhì)轉(zhuǎn)換，以及從光纖介質(zhì)到同軸或銅介質(zhì)的相反方式，為中繼器模塊提供電源，并用于創(chuàng)建環(huán)形，星形或點(diǎn)對點(diǎn)拓?fù)浣Y(jié)構(gòu)。

中繼器適配器和中繼器模塊都有Ready和Fault 2個狀態(tài)指示燈，分別表示上電故障狀態(tài)。整個1786-RPA中繼器適配器的大致尺寸為4 x 4 x 3英寸，或10 x 10 x 8厘米，重量約為7盎司或0.20千克。該系列B中繼器適配器也稱為型號1786-RPA/B。

1786-RPAB 模塊化中繼器適配器

The Allen-Bradley 1786-RPA is a ControlNet Modular Repeater Adapter. This module is a ControlNet communication network accessory that is primarily used to extend the length of a ControlNet network as well as assemble different topologies such as Star, Ring, Linear or Point-to-Point topology. This repeater module may also be used when physically converting ControlNet cable medium from Coaxial cable to Fiber Optic and Fiber Optic to ControlNet coax cable.

ControlNet network is an industrial communication protocol which is used for multi-drop communication of devices. These devices can be a mix of ControlNet client modules, Controllers, Visualization systems and gateways. ControlNet network is composed of a main communication highway called as Trunk where devices or Nodes connect via ControlNet taps. ControlNet network supports up to 1000 m of distance. If the network exceeds this maximum distance, the 1786-RPA may be used.

The 1786-RPA is compatible for use with 1786-RPCD repeater dual-copper module, 1786-RPFS repeater short-distance fiber module, 1786-RPFM repeater medium-distance fiber module, 1786-RPFRL fiber ring repeater module, and 1786-RPFRXL fiber ring repeater module. The maximum allowable adapters connected in series is 20 1786- RPA.

This repeater adapter module supports direct mounting to a mounting plate or with the use of a DIN rail. Direct panel mounting offers an increased resistance to vibration and shock compared to DIN Rail mounting. This module supports horizontal or vertical orientation and powered by an external voltage supply range of 18-36VDC.

This repeater adapter module is provided with One (1) removable terminal block for input power connections, One (1) 75 ohm terminating resistor and Two (2) DIN rail locks.

The 1786-RPAB repeater adapter requires 24 Volt DC input power. At 5 VDC, it can provide a maximum of 1.6 A of backplane output current. The Allen-Bradley 1786-RPAB repeater adapter serves different functions, such as extending the network’s length, performing network media conversions from coaxial or copper media to fiber media, as well as the opposite way from fiber media to coaxial or copper media, providing power to the repeater modules, and for the creation of a ring, star, or point-to-point topology.

Both the repeater adapters and repeater modules are equipped with 2 status indicators such as Ready and Fault, which indicates powered up fault state, respectively. The entire 1786-RPA repeater adapter has an approximate measurement of 4 x 4 x 3 inches, or 10 x 10 x 8 centimeters, and it weighs around 7 ounces or 0.20 kilograms. This Series B repeater adapter is also known as model number 1786-RPA/B.

 

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