USB - serial converter B B Electronics

Panel Mount - USB to Serial Converters, 2-4 Ports

Connect serial devices to your USB-only PCs

Benefits

Use legacy serial devices with USB PCs and laptops
Connect multiple devices with multi-port models
Features

New! Higher retention USB connector...
Meets Class 1 Div 2 withdrawal requirements (15N)
Add two or four COM ports to your USB PC
LEDs on transmit and receive lines
USB 1.0, 1.1, and 2.0 compatible (12 Mbps)
Automatic configuration on Windows 98, ME, 2000, XP and Vista
No power supply required (powered from USB bus)
Includes 1 meter USB cable

Get the extended range and multi-drop capability of RS-232 or RS-422/485 from the USB port of your PC. Windows automatically configures the serial outputs as additional COM ports, compatible with your Windows application.

RS-232 USB/serial converter unique features

Full handshake support (TD, RD, RTS, CTS, DTR, DSR, DCD, RI, GND)
DB9 male (DTE)
Baud rates up to 460 Kbps
RS-422/485 USB/serial converter unique features

Pluggable terminal blocks
Supports TDA, TDB, RDA, RDB, GND
Baud rates up to 921 Kbps
Use on RS-485 2-wire or RS-422/485 4-wire networks
Supports Send Data Control (SDC)