HC4120
Product Number：HC4120The HC4120 is a compact TCP/IP to RS485 converter that converts network communication to an RS485 interface, suitable for applications requiring connection of multiple devices. The device features a minimalist design, palm-sized body, one Ethernet input, and two RS485 output communication loops. Each loop can connect up to 20 RS485 devices (actual number depends on cable quality), with a maximum transmission distance of 1,000 meters.
The HC4120 supports both TCP and Real COM modes and allows network parameters to be configured directly via a browser without additional software installation, enhancing deployment flexibility. The device also includes password protection to prevent unauthorized parameter changes, making it ideal for access control, attendance, and industrial control system communication expansion applications.
- It is lightweight , measuring only 88 x 53 x 23 mm, smaller than the palm of your hand and easy to install .
- TCP/IP to RS485 communication interface converter , equipped with one Ethernet input and two RS485 output circuits.
- Supports TCP and Real COM operation modes , providing flexible ways to connect serial devices.
- No need to install proprietary software ; network parameters can be configured through a common browser.
- With login password protection function to prevent unauthorized parameter modification.
- Each RS485 loop can connect up to 20 devices (using twisted pair cables of AWG22 or above, the actual number depends on the cable material).
- The maximum communication distance is 1000 meters , suitable for medium and long distance deployment needs.
- Automatically detects 10/100 Mbps Ethernet to adapt to different network environments.
- The operating voltage is DC 9V, the current consumption is about 200mA, and it has a low power consumption design .
| model | HC4120 |
| Communication Protocol | TCP/IP, UDP, Real COM |
| Network interface | 1 x 10/100 Mbps Ethernet |
| RS485 interface | 2 sets of RS485 output |
| Maximum number of connections | Each RS485 group can support up to 20 units (depending on the cable conditions) |
| Communication distance | Maximum 1000 meters |
| Operating voltage | DC 9V |
| Current consumption | 200mA |
| Installation | Wall-mounted |
| size | 88 x 53 x 23 mm |
| Setting method | Browser operation, built-in parameter modification function, support password protection |
