Name: AccessBuilder 4000 4-Port Async Module
Brand: 3Com
Price: 62.95 USD
Availability: InStock

3Com 3C7520 AccessBuilder 4000 4-Port Async Module

Overview The 3Com AccessBuilder 4000 4-Port Async Module (model 3C7520) is a compact and reliable solution for adding asynchronous serial connectivity to an AccessBuilder 4000 chassis. Designed for high-density environments, this module provides four... Read More

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$62.95

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In Stock: 1
Manufacturer: 3Com
Model or Part: 3C7520
Condition: New
Weight: 20.00lb

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Description

Overview
The 3Com AccessBuilder 4000 4-Port Async Module (model 3C7520) is a compact and reliable solution for adding asynchronous serial connectivity to an AccessBuilder 4000 chassis. Designed for high-density environments, this module provides four independent RS-232/RS-422/RS-485 ports that can be configured to meet a wide range of legacy device requirements. Its plug-in design ensures quick installation and easy maintenance, making it ideal for both new deployments and upgrades of existing networks.

Key Features

Four asynchronous serial ports in a single 19-inch rack-mountable module
Supports RS-232, RS-422 and RS-485 signaling standards
Configurable baud rates from 300 to 115200 bits per second
Full duplex operation with independent transmit and receive paths
Hot-swap capable for minimal downtime during replacement or expansion
LED status indicators for power, link and activity on each port
Compatible with 3Com AccessBuilder 4000 series chassis and management software

Technical Specifications

Model number: 3C7520
Number of ports: 4
Connector type: DB9 (male) for RS-232, optional RJ45 for RS-422/RS-485
Baud rate: 300 to 115200 bps (configurable)
Data bits: 5, 6, 7 or 8
Parity: None, Even, Odd, Mark, Space
Stop bits: 1, 1.5 or 2
Flow control: None, XON/XOFF, RTS/CTS
Operating temperature: 0 to 55 degrees Celsius
Power consumption: less than 5 watts per module
Dimensions: 1U height, 19 inch rack width

Applications
The AccessBuilder 4000 4-Port Async Module is perfect for connecting legacy industrial controllers, point-of-sale terminals, barcode scanners, security systems and HVAC equipment to modern Ethernet networks. It is also well suited for telecommunications equipment, medical devices and any environment where reliable serial communication must be maintained alongside high-speed IP traffic. By consolidating multiple serial links into a single, manageable module, organizations can reduce cabling complexity, improve device uptime and simplify network administration.