1 Port USB to RS232 DB9 Serial Adapter Cable - M/M. Customer Reviews 4 (4 reviews) 4 out of 5 stars. 5 (3) 4 (0) 3 (0) 2 (0) 1 (1) Quality of Product. 2nd edition dd excel character sheet. Tell us what you think of this product. Write a review. Need a little help getting started? Check out our review guidelines. 1 - 4 of 4 Reviews. The ICUSB2324X 4 Port Professional Grade USB Serial Adapter converts a single USB port to four RS232 serial ports allowing you to connect to, monitor and control your serial devices. Rugged metal construction and sturdy wall-mount brackets provide a robust solution for both harsh industrial environments and simple desktop installations.

The USB COM232 Plus 4 module is a single USB interface to four independent RS232 ports, communication unit. The integrated electronics of the USB-COM232-PLUS4 utilise the FTDI FT4232H (USB 2.0 Hi-Speed unit) and includes RS232 level shifters plus Power/TXD/RXD LEDs to provide a visual indication of data traffic through the module.The module uses a standard USB-mini B unit connector for connection to an upstream host or hub port.

RS232-level signals, including modem handshake signals, are available on an industry-standard DE-9P connector. There is a separate DB9-PE for each RS232 port.The module is powered from the host USB port and therefore does not require an external power supply.All modem control lines are provided - TXD, RXD, RTS, CTS, DCD, DTR and DSD.Pin 9 of the DE-9P connectors is a RI# pin for remotely waking up a sleeping host.The maximum RS232-level data rate for each channel is 1Mbps.The product works with the royalty free FTDI drivers for Windows, MAC, Linux.The USB-COM232-PLUS4 is fully RoHS compliant and is CE and FCC approved.Operating temperature range -40oC to +85oC.

SolutionUSB Type A and USB Type B plugs have the same number of pins and are electrically identical. They are only different mechanically. This was an intentional feature designed by the USB Implementers Forum to prevent connecting a host to another host, which could cause a short circuit. In the following figure, the type A plug is on the left and the type B plug is shown on the right. Notice the pin numbering as well. Each plug type has the same number of pins, they are only different in mechanical design. Additional InformationThe USB receptacle on your PC is a type A connector and can be recognized by its rectangular shape.Type A receptacles can be found on upstream devices such as a USB host, or a hub.

Type A plugs can be found on cables, and smaller peripherals such as a mouse and a flash drive. However, many larger USB peripherals such as printers and scanners use a detachable cable, and use the Type B receptacle, which has a square shape. Instruments are another type of downstream device. To connect an instrument to your PC, you will need to use a USB Type A to Type B cable.