Description
Description:
The A20B-8001-0961 is a FANUC printed circuit board (PCB) used as a High-Speed Serial Bus (HSSB) interface on the PC side. It provides one communication channel of the HSSB Type 2 interface, allowing a PC or host device to connect to a FANUC CNC controller’s high-speed communication network.
Key Details:
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🧠 Function: HSSB interface board — links a PC/host system to the FANUC high-speed serial bus for data communication.
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📡 Channels: 1 channel for HSSB communication.
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💾 Bus Type / Interface Type: Type 2 PC-side HSSB interface (often used with FANUC controllers requiring this interface).
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🔌 Use Case: Employed in CNC control systems where high-speed data transfer between the control and a PC is needed — such as diagnostics, program transfer, or communication with other modules.
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🔄 Status: Often discontinued by the manufacturer; available as new, refurbished, or repaired boards from third-party suppliers.
In FANUC documentation this board is listed as the 1-channel PCI bus version of the HSSB Type 2 interface for the PC side (the ISA/older type boards are A20B-8001-0582/0583).

