5461-086 - Transducer Input Module

SPECIFICATIONS

Part Number: 5461-086
Manufacturer: Woodward
Product type: Module
Availability: In Stock
Function: Transducer Input Module
Country of Manufacture: United States (USA)

Functional Description

5461-086 is a Transducer Input Module developed by Woodward. The transducer module serves as an input interface designed for communication with external transducers. Within this module, you will find two isolated RS-422 communication ports, each consisting of a pair of differential transmit lines, a pair of differential receive lines, and connections for +15 V power supply. Importantly, these two ports are electrically separated from each other as well as from the rest of the module.

Features

• Data acquired from external sources is transmitted to the main CPU module through dual-port RAM on the VME bus.
• Notably, a single pressure transducer interface module has the capacity to connect up to eight transducers.
• Installation is a breeze as the modules conveniently slide into card guides within the control's chassis and plug directly into the motherboard. The modules are secured firmly in place with two screws -one positioned at the top and another at the bottom.
• Additionally, two handles located at the top and bottom facilitate easy module extraction by gently moving the modules just enough for the boards to disengage from the motherboard connectors when toggled.

Installation

1. Termination Resistors for RS-422 Receive Ports:
   1. The Transducer Module comes equipped with optional termination resistors. It's important to install these resistors on the RS-422 receive ports to optimize signal integrity.
   2. Specifically, these termination resistors should be installed on the last unit at each end of the network to prevent signal reflections.
2. Setting Up Termination Resistors on the Transducer Interface Module:
   1. To install termination resistors on the Transducer Interface Module, follow these steps - Close switches 3 and 4 for each channel. Leave switches 1 and 2 open.
      This configuration ensures proper termination for each channel, enhancing signal quality and reducing the risk of signal interference.
3. Mounting the Transducer Module:
   1. The physical installation of the Transducer Module is straightforward. The modules are designed to effortlessly slide into the card guides within the control chassis.
   2. Ensure the module is oriented correctly to align with the motherboard connectors.
4. Securing the Module in Place:
   1. To prevent any movement or disconnection during operation, secure the module firmly in place using two screws.
   2. One screw should be positioned at the top of the front panel, and the other at the bottom.
5. Utilizing Module Handles for Easy Access:
   1. Conveniently located at the top and bottom of the module are two handles. These handles serve a dual purpose:
   2. When toggled outward, they allow you to move the modules slightly out of their housing, providing just enough clearance for the circuit boards to disengage from the motherboard connectors.
   3. When not in use, the handles rest flush with the module, maintaining a compact and space-efficient profile.

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Frequently Asked Questions

What is 5461-086?
It is a Field Terminal Module developed by Woodward.

What is the role of the communications processor in the Transducer Module?
The communications processor in the Transducer Module serves as the component responsible for sending outputs and receiving inputs from the RS-422 ports. It plays a vital role in facilitating data transfer and communication.

How does the communications processor connect with the RS-422 ports?
The communications processor establishes a connection with the RS-422 ports within the Transducer Module. It manages the data flow between the module and external devices connected to these ports.

What is the significance of the CPU module's involvement in the process?
The CPU module plays a pivotal role in the communication process. It interacts with the Transducer Interface Module through the VME bus and dual port RAM. This communication pathway allows for data exchange and coordination between the Transducer Module and the CPU module.

What is the purpose of dual port RAM in this setup?
Dual port RAM serves as a shared memory space that allows both the communications processor and the CPU module to read from and write to it simultaneously. It enables seamless and real-time data exchange between these two critical components.