T8448 ICS 可信®多功能现场终端组件(VFTA)

产品概述
可信®多功能现场终端组件(VFTA) T8842主要用于充当与检测和抑制火灾和气体危害相关的现场设备与可信三模块冗余(TMR)区域接口模块T8448之间的主接口。它还用作可信TMR阀门监控模块T8449的接口，其中电磁阀的数字输出与阀门位置模拟输入交替使用。
VFTA的每个通道都是可配置的，可以连接各种现场设备。这些设备包括产生模拟和数字输入信号的设备，以及需要高达28 Vdc的数字信号的输出设备。
特点:
•40通道每VFTA每个可配置为输入或输出。
•工业标准现场设备连接(2或3线)。
•标准DIN导轨兼容性。
•安装连接简单。
•使用插入式熔断器和内置电阻的简单配置。
•18vdc ~ 28vdc操作。
•现场供电分为5组8路。
•选择从可控制的输出为每组供电。
•每通道熔接现场电源。

T8480C

Product Overview
The Trusted® Versatile Field Termination Assembly (VFTA) T8842 is primarily designed to act as the main interface between field devices associated with the detection and suppression of fire and gas hazards, and the Trusted Triple Modular Redundant (TMR) Zone Interface Module T8448. It is also used as the interface for the Trusted TMR Valve Monitor Module T8449, for which digital outputs to solenoid valves alternate with valve position analogue inputs.
Each channel of the VFTA is configurable to enable a variety of field devices to be connected. These include devices generating both analogue and digital input signals, and output devices requiring a digital signal at up to 28 Vdc.
Features:
• 40 channels per VFTA each configurable as inputs or outputs.
• Industrial standard field device connections (2 or 3 wire).
• Standard DIN rail compatibility.
• Simple installation and connection.
• Simple configuration using plug-in fuses and built-in resistors.
• 18 Vdc to 28 Vdc operation.
• Field power supply arranged in five groups of eight channels.
• Option to supply power from a controllable output for each group.
• Fused field power supply per channel.