LU-S14520 Isolated RS-232 to RS-485 Converter

LU-S14520 Isolated RS-232 to RS-485 Converter

Summary:

LU-S14520 realizes 3000 VDC isolation protection and inside automatic RS-485 control, supports multi-class baud rate, and has the function of automatic identifying. The transmission rate may be up to 115.2kbps. Functions of transient interference suppression & thunder-proof are available on RS-485 bus.

Main Feature:

Excellent EMC performance

1. High Anti-Electrostatic, test result:
Air Discharge: ± 12 KV
Contact Discharge: ± 6 KV
2. Easy to pass 3 KV Electrical Fast Transient/Burst Immunity Test (EFT test)
3. Lighting Surge Immunity: ± 2 KV
4. Radiated & Noise Immunity Test
With noise interference simulated by multi-circle wire(Impulse amplitude: 1 KV, bandwidth: 1 µs) by 10 minutes, no abnormal phenomena
5. Voltage Dips, Short Interruptions, and Voltage Variations Immunity Test
Gradual change of voltage: ± 20% Ut,
Gradual change of time: 2 s ± 20%
Voltage Dips and Short Interruptions: 40% Ut
The duration time: 5 s

Relay Output
● Input: RS-232
RS-232 Interface: DB-9 Interface
● Output: RS-485 ( 2 wire)
RS-485 Interface: Plug-in Screw Terminal
● Rate(bps) : 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k
● Isolation Voltage: 3000VDC
● Automatic Inside RS-485 Management
● RS-485 needn’t external data-flow control signal.
● RS-485 Suppressing Transient Interference in data lines: Yes
● Network Cable Distance: up to 4000 feet

Power
● Power: Unregulated +10 ~ +30 VDC
● Power Consumption: 1.2 W

Signal Converter