Description
The Yokogawa AIP171 is a transceiver control module designed for V net repeater systems within Yokogawa CENTUM CS, CENTUM CS 3000, and CENTUM VP distributed control system (DCS) architectures. It manages and coordinates up to 16 electrical or optical transceivers, handling signal repeating, bus link monitoring, and channel-level fault isolation across multi-node control network topologies.
Technical Specifications
| Parameter | Value |
| Manufacturer | Yokogawa Electric Corporation |
| Model Code | AIP171 |
| Device Type | Transceiver Control Module (V net Repeater Infrastructure) |
| Capacity | Controls up to 16 transceivers (electrical or optical) |
| System Compatibility | CENTUM VP, CENTUM CS 3000, CENTUM CS |
| Power Supply | 24 V DC (nominal rack distribution) |
| Power Consumption | Maximum 20 W |
| Operating Temperature | 0°C to +50°C |
| Operating Humidity | 5% to 95% RH (non-condensing) |
| Diagnostics | Channel-level status, transceiver fault detection, and front-panel status LEDs |
Availability and Commercial Terms
- Condition Options: New Original (Factory Sealed), New Surplus, or Refurbished (fully tested and verified)
- Lead Time: 1 to 3 business days for stock items; 2 to 4 weeks for specialized surplus procurement
- Warranty: 12-month standard replacement warranty from date of shipment
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering and Integration Notes
In field deployments of multi-building or long-distance V net communications, the AIP171 manages network repeaters to ensure uninterrupted data frame delivery between process nodes.
- Transceiver Allocation: The module coordinates up to 16 physical transceivers. Ensure that physical optical power levels and copper segment lengths are verified against system budget limits before configuring transceiver routing.
- Hardware Configuration: Network segment settings and operation parameters rely on physical DIP switch arrays on the module substrate. Match these hardware positions strictly to the engineering project documentation prior to rack insertion.
- Network Redundancy: In dual-redundant V net topologies, loss of signal on a single transceiver port triggers automatic isolation, allowing the backup network path to maintain controller communication without packet corruption.
Frequently Asked Questions
What is the primary role of the AIP171 in a Yokogawa DCS network?
The AIP171 manages optical and electrical transceivers within a V net repeater setup. It acts as a localized controller for signal repeating, maintaining deterministic communication across distant V net control stations.
Can electrical and optical transceivers be mixed on a single AIP171 module?
Yes. The AIP171 supports both electrical and optical transceiver interfaces simultaneously up to its 16-port capacity limit. Verify power budget requirements and media type configurations in the System Builder project before installation.
| Yokogawa NFPW444 – I/O Module for Yokogawa CENTUM VP Control Systems |
| YOKOGAWA CP471-00 – CENTUM VP Processor Module |
| Yokogawa CP451-51 – Field Control Unit (FCU) Processor Module |




