The IC-485SN Converter is a data transmission controller that can control data transmission between RS-232 and RS-485. It supports point-to-point and multipoint modes
This manual describes the ATEN IC-485SN bidirectional converter, covering its features, switch settings, and three operating modes—Point‑to‑Point, Multidrop, and Simplex. It explains how to configure the device for DCE or DTE operation using slide switches SW1 and SW2.
Installation instructions, terminal block pin assignments, DCE/DTE connection details, troubleshooting tips, and full technical specifications are included, along with FCC compliance information for radio and TV interference.
| Data Rate | Up to 100K bps under 4,000 ft (1.2 km) |
|---|---|
| Connector Type | DB-25 female, 4‑terminal block or RJ‑11 |
| Dimensions (L×W×H) | 54 x 74.5 x 18.5 mm |
It supports three operating modes: Point‑to‑Point, Multidrop, and Simplex.
Set switch SW1 to DCE or DTE depending on the type of device the IC‑485SN will be connected to.
Verify that the IC‑485SN units are securely plugged into the PC’s serial ports, cables are correctly connected, and SW1 and SW2 are set properly.