Alpha MLS-485 Network Controller for Pagers

Alpha MLS-485 Network Controller for Pagers

The MLS-485 from Alpha is a network controller for pagers, this is a transmit long haul modem for alphapage systems. The Alpha MLS-485 Network Controllers allow up to 31 RS-232 serial ports (transmit only) to be connected to a receiver RS-232 port. In addition, MLS-485’s eliminate RS-232 distance limitations. Ports may be located up to 4000′ apart. Normally, an RS-232 peripheral device must be located in close proximity to the host device.

MLS-485’s prevent serial ports from attempting to communicate simultaneously. Flow control is accomplished using the RS-232 CTS (Clear To Send) handshaking signal. Data is converted to RS-485 format for transmission. This allows data to be sent over long distances while maintaining a high level of noise immunity. MLS-485’s are connected together to form a network using simple, inexpensive wiring. Two pair, #2AWG connects all MLS-485’s together. MLS-485’s is packaged in Black, medium impact ABS plastic enclosures.

Alpha MLS-485 Key Features

• Multiple Connections: Connects up to 31 RS-232 serial ports, enabling extensive network flexibility.
• Long Distance Capability: Eliminates RS-232 distance limitations, allowing ports to be located up to 4000′ apart for greater installation options.
• Flow Control Management: Prevents simultaneous communication from serial ports, ensuring reliable data transmission.
• Noise Immunity: Converts data to RS-485 format, allowing for long-distance transmission with high noise resistance.
• Simple Wiring: Utilizes inexpensive wiring to connect multiple MLS-485 units, simplifying installation and reducing costs.
• Durable Construction: Packaged in medium impact ABS plastic for enhanced durability and longevity.

Alpha MLS-485 Detailed Specifications