1786-RPAB 模块化中继器适配器

Description

1786-RPAB 模块化中继器适配器

艾伦-布拉德利1786-RPA是一种ControlNet模块化中继器适配器。该模块是一个控制网通信网络附件，主要用于扩展控制网网络的长度，以及组装不同的拓扑，如星型，环形，线性或点对点拓扑。该中继器模块也可用于物理转换控制网电缆介质从同轴电缆到光纤和光纤到控制网同轴电缆。

控制网是一种工业通信协议，用于设备的多点通信。这些设备可以是ControlNet客户端模块、控制器、可视化系统和网关的组合。控制网网络由称为主干的主要通信高速公路组成，其中设备或节点通过控制网水龙头连接。ControlNet网络支持最远1000米的距离。如果网络超过这个最大距离，则可以使用1786-RPA。

1786-RPA兼容使用1786-RPCD中继器双铜模块、1786-RPFS中继器短距离光纤模块、1786-RPFM中继器中距离光纤模块、1786-RPFRL光纤环形中继器模块和1786-RPFRXL光纤环形中继器模块。最大允许的适配器串联连接是20 1786- RPA。

此中继器适配器模块支持直接安装到安装板或使用DIN导轨。与DIN导轨安装相比，直接面板安装提供了更高的抗振动和冲击能力。该模块支持水平或垂直方向，并由外部电压供应范围18-36VDC供电。

该中继器适配器模块提供一(1)个可移动端子块用于输入电源连接，一个(1)个75欧姆终端电阻和两个(2)个DIN导轨锁。

1786-RPAB中继器适配器需要24伏直流输入功率。在5vdc时，它可以提供最大1.6 a的背板输出电流。Allen-Bradley 1786-RPAB中继器适配器具有不同的功能，例如扩展网络长度，执行从同轴或铜介质到光纤介质的网络介质转换，以及从光纤介质到同轴或铜介质的相反方式，为中继器模块提供电源，并用于创建环形，星形或点对点拓扑结构。

中继器适配器和中继器模块都有Ready和Fault 2个状态指示灯，分别表示上电故障状态。整个1786-RPA中继器适配器的大致尺寸为4 x 4 x 3英寸，或10 x 10 x 8厘米，重量约为7盎司或0.20千克。该系列B中继器适配器也称为型号1786-RPA/B。

1786-RPAB

1786-RPAB 模块化中继器适配器

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.