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Product Overview
The Toshiba 2N3A8204-B is a printed circuit board assembly used as an option wiring / IS BUS board in Toshiba industrial control equipment. Available equipment records associate this part with the Toshiba EX08-ECIA5 platform and identify it as a dedicated wiring board rather than a conventional CPU or I/O module. It provides the electrical routing and connection function required by the associated control-system architecture. The part is also cross-referenced in TMEIC industrial drive and control inventories as ISBARND-8204A6 / ARND-8204A, indicating its use within related Toshiba/TMEIC hardware families.
For maintenance procurement, the distinction is important: this is a configuration-specific board assembly, so a visually similar PCB should not be assumed interchangeable. Personally, I would verify the parent controller, connector arrangement, board revision, and existing wiring configuration before installing a replacement.
Technical Specifications — 2N3A8204-B
| Parameter | Value |
|---|---|
| Product Model | 2N3A8204-B |
| Manufacturer | Toshiba |
| Product Type | Printed Circuit Board Assembly |
| Board Function | Option Wiring / IS BUS Board |
| Associated Platform | Toshiba EX08-ECIA5 / related TMEIC equipment |
| Application | Industrial automation and drive-control systems |
| Power | Supplied through associated equipment |
| Communication / Protocol | IS BUS system architecture |
| Mounting | Internal equipment PCB assembly |
| Dimensions (HxWxD) | Refer to equipment mechanical documentation |
| Weight | Approx. 0.30 lb / 0.14 kg according to supplier listing |
| Typical Interfaces | Board-to-board and equipment wiring connectors |
| Compliance | Equipment-specific |
Commercial equipment records classify the part as a PC board assembly for option wiring and identify it specifically as an IS BUS board.
Toshiba 2N3A8204-B
Key Features and Benefits — 2N3A8204-B
- Dedicated wiring interface for compatible Toshiba control equipment.
- Supports IS BUS signal routing within the associated architecture.
- Designed for integration into OEM industrial control assemblies.
- Compact PCB construction suited to internal cabinet or controller installation.
- Useful as a replacement spare for legacy Toshiba/TMEIC equipment.
- Exact connector and board-revision matching helps avoid wiring incompatibility.
Related Models
2N3A3116-B: Toshiba/TMEIC gate-driver board used in related industrial drive equipment.
2N3A3119-B: Related controller board assembly used in Toshiba/TMEIC control hardware.
2N3A3120-C: Wiring board assembly with screw-terminal connections for associated control equipment.
2N3A8216-A: Related Toshiba/TMEIC PC board assembly found in the same industrial spare-parts ecosystem.
Installation and Maintenance — 2N3A8204-B
Before installation, isolate the equipment and document the original connector positions, jumpers, cable routing, and board orientation. Confirm that the replacement revision matches the existing hardware and that all mating connectors are compatible.
Inspect the PCB for corrosion, damaged components, loose terminals, and connector wear. During commissioning, verify bus continuity and the expected status of the connected control equipment. For legacy Toshiba systems, preserving the original wiring layout is particularly valuable because replacement boards may no longer be supported by current engineering documentation.
Product Warranty — 2N3A8204-B
Warranty coverage depends on the supplier and unit condition, including new, unused surplus, refurbished, or repaired stock. Procurement records should include board revision, serial or identification markings, inspection status, warranty period, and return conditions. Current commercial listings identify this part as discontinued, so exact identification and compatibility checks are recommended before purchase.
The Toshiba 2N3A8204-B is a legacy IS BUS option-wiring PCB assembly intended for specific Toshiba/TMEIC control hardware. Exact system compatibility should be confirmed before replacement.
