Page 23724-746-5500 | blackbox.com Appendix B: Electrical Interfaces
Appendix B. Electrical Interfaces
The IC292A connects to a single USB port and provides eight RS-232/422/485
software configurable serial ports. The IC292A uses high-speed USB/UARTs with
128-byte TX FIFOs and 384-byte RX FIFOs. The chips feature programmable baud
rates and data rates to 921.6 kbps.
Connector Pinouts
RS-232 (DB9 male)
Figure B-1. DB9 male connector.
Table B-1. RS-232
(DB9 male connector
pinout).
Pin Number Signal
1DCD
2RX
3TX
4DTR
5GND
6DSR
7 RTS
8CTS
9RI
6 9