E4809-770-120-D
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The Okuma E4809-770-120-D, part of the E4809 CNC Boards series, is a CNC main control board designed for industrial applications. It features digital and analog I/O signal interfaces and operates at an input voltage of approximately 220V AC. Weighing around 2-3 kg, it supports panel mounting.
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Product Description:
The E4809-770-120-D Circuit board was manufactured by Okuma to be used in industrial control systems. The board is a signal interface and high-speed transmission module that links control units to servo drives and other parts. For CNC and motion control uses, it is made to handle real-time data transfer and communication within the cabinet.
The E4809-770-120-D circuit board has four fiber optic ports, marked X8-SE1 through X8-SE4. These ports are used to communicate with servo systems or controls at high speeds (TX/RX). There is an RJ-type port below the fiber ports that is marked X8. This port is probably used for diagnostics or a serial link. The board has several headers built in, such as 1KX1, 1KX2, and 1KX4. These are used to route signals, distribute power, or send status signals inside the control box. There is a 240-pin ALTERA FLEX EPF10K20RC240-4 in the bottom right corner. This is a programmable logic device that handles I/O tasks and internal signal processing. The board has static RAM parts, such as the HM62256, which provide 32KB of temporary memory for buffering or runtime tasks. There are also flash or EPROM chips, which are likely used to store setup and firmware data. Near the connectors that handle serial communication connections with outside devices are RS-232 or RS-422 transceiver chips.
The E4809-770-120-D has extra integrated circuits (ICs) on board for controlling power and making clocks. Standard 10-pin and 20-pin ribbon headers are used on the board design to join to other modules and send power, signals, and control lines. Labeling and segmenting pins make it easier to connect them to larger systems. The structure and configuration work well for systems that need to perform consistently. The board follows the rules for standard control architecture and works with systems that handle more than one axis.
Frequently Asked Questions about E4809-770-120-D:
Q: Do E4809-770-120-D headers distribute system signals?
A: Yes, onboard headers distribute power and signal lines. They enable integration with other PCBs in the control cabinet.
Q: Why does E4809-770-120-D use ALTERA FLEX?
A: ALTERA FLEX manages programmable logic tasks. It handles I/O control, signal processing, and bus communication efficiently.
Q: Does E4809-770-120-D support serial communication interfaces?
A: The board includes RS-232/422 transceivers. These allow diagnostic or serial device communication via front-panel ports.
Q: Why is static RAM used in E4809-770-120-D?
A: Static RAM provides temporary memory storage. It buffers runtime data and supports high-speed operations.
Q: How does E4809-770-120-D ensure signal stability?
A: The board features optically isolated fiber interfaces. This prevents interference during transmission and maintains communication reliability.
