Specifications
OMG-USB-232-2
Page
5
Technical Description
The
OMG-USB-232-2
utilizes two USB UARTs. These chips feature
programmable baud rate, data format, 128 byte Dual Port TX Buffer, and 384 byte
Dual Port RX Buffer. The RS-232 transceiver supports data rates up to 460.8K
baud.
Features
•
Hot pluggable device that does not require opening the case
•
No system resources are required (i.e. I/O ports or IRQ’s)
•
LED status indicators for USB Enabled and port activity
RS-232
(DB-9 Male)
Signal
Name
Pin #
Mode
GND
Ground
5
TX
Transmit Data
3
Output
RTS
Request To Send
7
Output
DTR
Data Terminal Ready
4
Output
RX
Receive Data
2
Input
CTS
Clear To Send
8
Input
DSR
Data Set Ready
6
Input
DCD
Data Carrier Detect
1
Input
RI
Ring Indicator
9
Input
