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 |