E4809-045-038-C
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The E4809-045-038-C is a flanged bushing featuring a 4.5 mm inner diameter and an 8 mm outer diameter. Manufactured by Okuma as part of the E4809 CNC Boards series, it is made from oil-impregnated bronze. It operates within a temperature range of -40°C to +120°C and has a machined, oil-impregnated surface finish.
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Product Description:
The E4809-045-038-C circuit board from the Okuma functions as the interface layer unit that interprets serial communication signals using onboard components. Okuma specializes in industrial automation technology by producing parts of excellent quality and small construction.
The E4809-045-038-C circuit board finds an important role in CNC automation by supporting RS-232C communication used for connecting with external equipment. Assigned as Main Card 3, it handles data transfers within the control framework. The unit has a light build of 0.31 kg and is mounted on a rigid green laminate with precision-fit gold-edge contacts. It also includes a pair of shielded DB-type ports that provide a reliable path for serial interfacing which is secured mechanically through screw locks. Within its layout many installed IC circuits from the 74LS logic family perform signal control and digital decision-making. Two key components are labeled with wM5L8251AP which operate as configurable controllers that direct outbound and inbound information over the serial line. Timing accuracy is maintained by a M5L8253P programmable counter which works in tandem with a 16 MHz quartz oscillator identified as XCO-6, supplying a consistent frequency source.
The E4809-045-038-C circuit board’s signal clarity is maintained by HD74LS244P line drivers which isolate and shape electrical transitions. A SN74LS161AN counting chip ensures accurate sequencing and speed regulation across the interface. Supporting components such as small-scale resistors and capacitors assist in voltage balance and suppressing unwanted electrical fluctuations. Ferrite-core filters are placed directly in the signal path, reduce electromagnetic disruption by enhancing performance in environments filled with industrial machinery. This board is specified for use in elevated locations exceeding 1,000 meters by reflecting its suitability for high-altitude applications.
Frequently Asked Questions about E4809-045-038-C:
Q: Which type of connectors are used on the E4809-045-038-C main card?
A: This board uses dual shielded DB-type connectors that enable secure and stable RS-232C interfacing.
Q: What integrated communication components are found on the E4809-045-038-C?
A: It includes M5L8251AP programmable USARTs for managing data transmission and reception over the RS-232C channel.
Q: How is timing handled on the E4809-045-038-C interface board?
A: A M5L8253P programmable timer and a 16 MHz crystal oscillator (XCO-6) together maintain accurate timing operations.
Q: What component on the E4809-045-038-C manages data buffering?
A: The HD74LS244P bus driver handles signal buffering and keeps data transitions clean across logic levels.
Q: What counters are present in the E4809-045-038-C and why?
A: A SN74LS161AN binary counter manages baud rate timing and sequencing for stable data communication.
