Product Overview of the Woodward 5466-355 Remote Transceiver

The Woodward 5466-355 functions as a remote chassis transceiver for CPU 68040 systems. This Remote XCVR module handles receiving and sending control, data, and address information. Communication occurs with the Main XCVR module through dedicated cable connections. Consequently, each remote I/O chassis wired to the main chassis needs this module.

Furthermore, the 5466-355 connects directly to the chassis VME bus for system integration. A parallel interface utilizing high speed differential line drivers enables fast communication. These drivers operate seamlessly at the full VME transmission rate without performance loss. As a result, this configuration ensures efficient and rapid data transfer between components.

Moreover, signal degradation and electromagnetic interference are minimized by this thoughtful design. Cable connectivity uses rugged 100-pin metal shell Micro-D connectors for reliability. Two connectors are allocated for each module in the typical system configuration. Thus, this connector design ensures robust and dependable connections throughout the installation.

Technical Specifications of the 5466-355

• Part Number: 5466-355

• Manufacturer: Woodward

• Product Type: Remote Chassis Transceiver

• System Compatibility: CPU 68040 systems only

• Interface Type: Parallel with differential line drivers

• Transmission Rate: VME bus rate

• Connector Type: 100-pin metal shell Micro-D

• Connectors per Module: 2

• Mounting Slot: Slot 1 required

• Switches: None

• LEDs: None

• Country of Manufacture: United States (USA)

The Woodward 5466-355 has no switches or LEDs on the module face for simplicity. Installation requires placing this module in Slot 1 of each remote chassis. Meanwhile, the parallel interface maintains signal integrity over the specified cable length. In addition, high speed differential drivers reject common mode noise very effectively.

Termination Resistor Requirements

The 5466-355 comes in two distinct configurations for different chassis positions. Specifically, expansion chassis before the last one use the module without termination resistors. This module without termination installs in Slot 1 of each expansion chassis. Therefore, this configuration prevents signal reflections in the communication chain.

On the other hand, the final expansion chassis needs termination resistors for proper operation. Use the 5466-355 with termination resistors in the last chassis position only. This module must also be installed in Slot 1 of the last expansion chassis. Consequently, terminations prevent signal distortion and manage reflections correctly.

Additionally, the remote transceiver bus receiver and driver communicate with the VME bus. The module exchanges control, data, and address information on a continuous basis. If the chassis needs to be accessed, the chassis decoder activates the receiver accordingly. Similarly, the decoder also activates the driver to send or receive information as needed.

T-Module and Cabling Requirements

All expansion chassis except the last need a T-Module installed adjacent to them. The T-Module should be positioned next to the expansion chassis for short connections. Three foot or 0.9 meter cables connect the chassis to its T-Module effectively. As a result, shorter cable lengths help maintain signal quality over short distances.

In contrast, connections from the main chassis use ten foot or 3 meter cables. Likewise, connections between the last expansion chassis also use 3 meter cables. Similarly, connections between T-Modules use the same 3 meter cable length. Thus, longer cables accommodate increased distance while preserving signal integrity.

The system uses a parallel interface for high speed communication across all connections. Differential line drivers maintain signal quality across all specified cable lengths. Meanwhile, the VME transmission rate is preserved throughout the entire component chain. Therefore, proper cable selection remains critical for reliable system operation.

Installation Guide for the 5466-355

Follow these steps to install the Woodward 5466-355 correctly.

1. Power down the entire system before handling any modules.

2. Insert the module into Slot 1 of the remote I/O chassis.

3. Secure the module firmly into the VME bus backplane.

4. Connect the 100-pin Micro-D cables to both connectors.

5. Use the correct cable length for each connection type.

6. Install modules without termination in non-final chassis.

7. Install the module with termination in the final chassis.

8. Position T-Modules adjacent to each expansion chassis.

9. Verify all cable connections are tight and fully secure.

10. Power up the system and monitor for proper operation.

First, check all cable connections if the remote transceiver stops working. Next, replace the cables if the module still does not work properly. Finally, replace the module only after trying new cables without success. After all, the remote chassis will not communicate without a functioning transceiver.

Package Contents for Woodward 5466-355

• 1 x Woodward 5466-355 remote chassis transceiver module

• 1 x Set of termination resistors (if ordered as final chassis version)

• 1 x Installation instruction sheet

• 2 x Connector dust covers for unused ports

Frequently Asked Questions (FAQ)

1. Which CPU systems work with the 5466-355 remote transceiver?
The Woodward 5466-355 is only available for CPU 68040 systems. Older or newer CPU families are not compatible with this module. Therefore, verify your system has a 68040 CPU before ordering this transceiver.

2. How do I know if I need termination resistors on my module?
Use the 5466-355 without termination for all expansion chassis except the last. The final expansion chassis in the chain requires termination resistors. Consequently, installing termination on non-final chassis causes communication errors.

3. What should I do if the remote chassis is not communicating?
First, check all cable connections between the main and remote chassis. Second, replace the cables if connections appear good but communication fails. Third, replace the 5466-355 module only after trying new cables.

4. Can I install the remote transceiver in a different slot?
No, the Woodward 5466-355 must be installed in Slot 1 of each remote chassis. The system expects the transceiver at this specific slot location for addressing. As a result, installing in another slot will prevent proper communication.

5. What is the purpose of the T-Module in the expansion chain?
The T-Module provides a connection point between expansion chassis for signal routing. It is required for all expansion chassis except the last one in chain. Each T-Module connects to its chassis using a 0.9 meter cable.