Features• True RS-485 Star Wiring Hub
• Power and data flow indicator for troubleshooting
• Easy-to-use rotary switch for fixed baud rate setting
• Independent RS-485 driver for each channel
• Automatic RS-485 Direction Control
• 120Ω termination resistor for each channel
IntroductionRS-485 Active Hub The I-7520U4 is isolated RS-232 to 4-ch RS-485 active star wiring hub, it has 4 independent RS-485 output channels and one RS-232 input channel. Each output channel is equipped with an individual driver. The data from a master to the input channel will simultaneously be forwarded to all the four output channels.
Isolation |
Intra-module Isolation |
3000 VDC |
EMS Protection |
ESD (IEC 61000-4-2) |
Yes |
LED Indicators |
Status |
1 x Power and Communication |
COM Ports |
Ports |
1 x RS-232 Input (Master) 4 x RS-485 Output (Slave) |
Baud Rate |
300 ~ 115200 bps via Self-Tuner mode; 1200 ~ 115200 bps via Fixed Baud Rate mode |
Power |
Input Range |
+10 VDC ~ +30 VDC (Non-isolated) |
Consumption |
1.2 W |
Mechanical |
Casing |
Plastic |
Dimensions (mm) |
72 x 35 x 118 (W x L x H) |
Installation |
DIN-Rail Mounting |
Environment |
Operating Temperature |
-25 ~ +75 °C |
Storage Temperature |
-30 ~ +75 °C |
Humidity |
10 ~ 90% RH, Non-condensing |