Alpha MLS-485D Network Controller for Pagers Features

Extend and centralize serial paging and nurse-call communications with the Alpha Communications MLS-485D Network Controller. Designed for nurse call stations, paging systems and security monitoring networks, the MLS-485D converts RS-232 data to RS-485 to eliminate distance limitations and maintain robust, noise-resistant links. The unit supports up to 31 RS-232 transmit-only ports and allows connected ports to be located as far as 4000' apart, making it ideal for hospitals, long corridors, campuses and surveillance installations. Built-in CTS handshaking prevents simultaneous communication attempts, ensuring orderly flow control and dependable message delivery across your network. Installation is straightforward: MLS-485D units form a network using simple two-pair wiring, cutting cabling cost and deployment time. Housed in a compact black ABS enclosure, the controller fits neatly into low-voltage racks or field enclosures for clean, professional installations. Improve operational reliability for paging, nurse call and security systems—contact our sales team to specify the MLS-485D for your next monitoring or surveillance deployment.

• Centralize and extend pager and nurse-call communications up to 4000' to improve site-wide monitoring and response
• Supports up to 31 RS-232 transmit ports to consolidate multiple devices into a single receiver for simplified management
• RS-232-to-RS-485 conversion with CTS flow control prevents collisions and delivers high noise immunity for reliable data in security and surveillance environments
• Simple two-pair network wiring reduces installation cost and complexity for large paging or monitoring systems
• Compact, durable ABS enclosure for easy mounting in low-voltage racks and field equipment cabinets