LU-S14000 Series I/O Modules

Overview
LU-S14520 is an isolated RS232-to-RS485 converter that provides 3000 VDC isolation protection, automatically manages the 485 bus internally, supports multiple baud rates with automatic detection, and achieves a transmission rate of up to 115.2 kbps. It features transient interference suppression and lightning protection on the bus.

Main features:
Superior immunity to interference (EMC)
•High ESD immunity Test results: air discharge ±12KV; contact discharge ±6KV
•Easily passes 3KV fast transient burst interference (EFT test)
•Lightning surge impact protection ±2KV
•Radiated noise immunity test An analog noise interference source is provided through a winding (Impulse voltage: 1KV, Impulse width: 1us); no abnormality after 10 min of application
•Voltage dips, short interruptions and voltage variation immunity test Power supply ramp ±20%Ut, time ramp 2s±20% Voltage dip and temporary interruption 40%Ut, duration 5s

Relay output
•Input: RS-232
•RS-232 interface: DB-9 connector
•Output: RS-485 (2-wire)
•RS-485 interface: plug-in screw terminals
•Speed (bps): 1200, 2400, 4800, 9600, 19.2k, 38.4k, 7.6k, 115.2k
•Isolation voltage: 3000VDC
•Automatic internal RS-485 bus management
•RS-485 requires no external data flow control signal
•Transient interference suppression on RS-485 data lines
•Networking distance up to 4000 ft

Power supply
•Power requirement: +10~+30Vdc (unregulated)
•Power consumption: 1.2W