| Protocol: 16550 UART with 16-byte FIFO |
| Data Rate: up to 115.2 Kbps. |
| Connectors: 4 x 10 pin Serial Headers |
| Flow Control: RS-232 modem control signals. |
| Serial Ports: Asynchronous Ports: 4 X RS-232. |
| Serial Modes: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND. |
| Other: Addresses and interrupts are jumper selectable, All four ports share a single interrupt. |
| Operating Temperature: 0°C TO 60°C . |
| Storage Temperature: -40°C TO +75°C . |
| Dimensions: 3.78" X 3.5.25" (96mm X 90mm). |
| Weight: 100 grams. |
| Power Consumption: Single 5V @ 250 mA. |
| Relative Humidity: 10 - 90% non-condensing. |