The CoolGear USB-8COMi-RM manual provides setup, driver installation, configuration and specifications for the USB to Octal RS‑232/422/485 serial adapter.
The USB-8COMi-RM is a USB‑to‑Octal serial adapter that adds eight RS‑232/422/485 ports to a computer via a single USB connection. It supports plug‑and‑play operation, hot‑plug, and offers configurable DIP switches and jumpers for selecting port mode and termination/bias settings.
The manual covers hardware installation, driver installation for Windows 2000‑XP‑Vista‑7, COM port configuration, and detailed procedures for uninstalling drivers. It also lists the electrical specifications, pin‑outs for RS‑232, RS‑422 and RS‑485, and power requirements for the adapter.
| Serial ports | 8 |
|---|---|
| Receive buffer | 384 bytes |
| Transmit buffer | 128 bytes |
| Data rates | 300 bps – 921.6 Kbps |
| Serial connector | DB‑9 male |
| Power input | AC 100‑240 V, 47‑63 Hz |
| Power output | 5 V DC, 4 A |
Insert the “USB COM Series Driver and Utility” CD, run the driver installer, and follow the prompts; the driver will auto‑detect the Windows version and install.
Open Device Manager, select the USB Serial Port, click Properties, go to Port Settings → Advanced, and choose a new COM port number from the drop‑down list.
The adapter requires an AC input of 100‑240 V at 47‑63 Hz and provides a DC output of 5 V at 4 A.
Set jumper 1‑2 for a 120 Ω termination; this jumper must be populated for RS‑485 mode.