3A98648G32
Manufacturer: Westinghouse, later acquired by Emerson Automation Solutions.
Product Type: Integrated Cluster TAP panel assembly designed exclusively for legacy WDPF DCS cluster network architecture; Revision G32 is a mature upgraded hardware version pre-assembled with two pieces of 5D32025G04 Ethernet TAP modules and four pieces of 5D32024G01 RTP twisted-pair communication modules. This integrated panel is installed inside WEStation workstation cabinet to realize link convergence and data distribution for WDPF workstation cluster networking. Original OEM mass production has been discontinued permanently; available supplies consist of fully tested refurbished assemblies and inspected surplus original used units for maintenance replacement in thermal power and petrochemical DCS facilities.
Description
1. Product Overview
Part Number: 3A98648G32Manufacturer: Westinghouse, later acquired by Emerson Automation Solutions.Product Type: Integrated Cluster TAP panel assembly designed exclusively for legacy WDPF DCS cluster network architecture; Revision G32 is a mature upgraded hardware version pre-assembled with two pieces of 5D32025G04 Ethernet TAP modules and four pieces of 5D32024G01 RTP twisted-pair communication modules. This integrated panel is installed inside WEStation workstation cabinet to realize link convergence and data distribution for WDPF workstation cluster networking. Original OEM mass production has been discontinued permanently; available supplies consist of fully tested refurbished assemblies and inspected surplus original used units for maintenance replacement in thermal power and petrochemical DCS facilities.
2. Electrical & Environmental Specifications
The assembly draws operating power from VME backplane with +5VDC, +12VDC and -12VDC input; total rated full-load power consumption is less than 18W while no-load standby power consumption is below 4.2W. It includes two electrically isolated Ethernet TAP ports supporting 10/100Mbps auto-adaptive transmission and four RTP industrial twisted-pair ports complying with proprietary WDPF Q-Line bus communication protocol. Every communication port is equipped with ±15kV contact ESD protection, surge current limiting and short-circuit latch-off protection; independent port fault isolation prevents single-channel failure from crashing overall panel communication. Multiple LED indicators on front panel separately display main power status, Ethernet link activity and individual RTP channel running or fault alarm status.Operating ambient temperature ranges from 0℃ to +55℃ inside sealed control cabinet, storage temperature spans -40℃ to +85℃ with relative humidity between 5% and 95% non-condensing. The whole assembly complies with UL safety and CE industrial EMC standards for power plant automation cabinet deployment.
3. Core Functional Features
Centralized network convergence: Collect and distribute real-time process data, configuration files and alarm messages among multiple WEStation workstations within the same WDPF control cluster via onboard TAP and RTP circuits.
Hardware fault self-checking: Built-in diagnostic logic continuously monitors power supply status, Ethernet link integrity and RTP bus connection; all abnormal fault codes are transmitted to host CPU through VME bus for system event logging and HMI on-screen alarm notification.
Isolated channel design ensures abnormal signal or short-circuit on one port will not spread to other communication channels or adjacent rack modules.
Standard rack-mounted structure allows integral disassembly and replacement after cutting corresponding slot power without shutting down the entire workstation cluster, minimizing system maintenance downtime. Full PCB conformal three-proof coating provides moisture-proof, dust-proof and anti-corrosion performance to adapt harsh dusty and humid industrial cabinet environments.
4. Upgrade Improvements of G32 Revision
Compared with earlier G-series predecessors, the G32 version optimizes internal signal filtering circuits to improve anti-interference against grid harmonic and variable-frequency drive electromagnetic noise in field sites. All core communication ICs and passive components are upgraded to industrial high-temperature grade to extend continuous-service lifespan under 24-hour nonstop running conditions. Internal wiring layout is revised for better heat dissipation to lower long-term operating temperature and reduce ageing-related failure rate. Port surge protection rating is upgraded to enhance reliability against transient voltage surges from on-site wiring accidents.
5. Typical Application
Primarily used as spare network convergence component for WDPF DCS workstation cluster cabinets at coal-fired power plants, combined heat and power stations and petrochemical refineries, deployed within operator station, engineering station and historical server rack for intra-cluster data communication.
6. Installation & Maintenance Guidelines
Strict ESD anti-static procedures shall be followed throughout installation and removal; cut off target rack power before swapping the whole TAP panel assembly. After mounting and power restoration, verify Ethernet and RTP link status via DCS diagnostic software to confirm normal data transmission before putting the system into formal operation. Perform periodic dust cleaning on panel terminals and internal circuit boards every six months for stable heat dissipation and reliable contact. Store spare assemblies inside dry constant-temperature ESD-controlled warehouse and conduct quarterly short-duration powered burn-in test to avoid component performance degradation from prolonged idle storage.
7. Supply Status
Emerson has terminated original new production of 3A98648G32; all available procurement options are certified factory-refurbished assemblies and verified pre-owned original spare panels.
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