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产品详情：
产品介绍：4路隔离RS-485有源集线器
特点：True RS-485 Star Wiring Hub
Independent RS-485 driver for each channel
LEDs for indicating RS-485 TxD/RxD activity
Auto Switching baud rate, 300 ~ 115200 bps and fixed baud rate setting via rotary switch, 1200 ~ 115200 bps
Hubs can be daisy chained for 256 channels
120Ω termination resistor for each channel
Power Input, +10 ~ +30 VDC
Operating Temperatures, -25 °C ~ +75 °C
DIN-Rail
规格：
Interface
Input (Master) 1 RS-485 Channel: Data+, Data-
Output (Slave) 4 RS-485 Channels: Data+, Data-
Transfer Distance Max. 1,200 m at 9.6 kbps; Max. 400 m at 115.2 kbps (Belden 9841 2P twisted-pair cable, if different cables are used, the transmission distance may change)
Self-Tuner Asic Inside Yes
Speed 300 ~ 115200 bps via Self-Tuner mode; 1200 ~ 115200 bps via Fixed Baud Rate mode
ESD Protection Yes
2500 VDC Isolation on CH1 ~ CH4 2-way Isolated
Connection Removable 10-Pin Terminal Block x 1; Removable 6-Pin Terminal Block x 1
LED Indicators
Power/Communication(TxD/RxD) Yes
Power
Input Voltage Range +10 VDC ~ +30 VDC (Non-isolated)
Power Consumption 1.2 W
Mechanical
Casing Plastic
Flammability Fire Retardant Materials (UL94-V0 Level)
Dimensions (W x H x D) 72 mm x 122 mm x 35 mm
Installation DIN-Rail
Environment
Operating Temperature -25 °C ~ +75 °C
Storage Temperature -30 °C ~ +80 °C
Humidity 10 ~ 90% RH, non-condensing