Technical description – Impulse 7104 User Manual
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Technical Description
Sealevel Systems COMM+850.LPCI Page
5
Technical Description
The Sealevel Systems COMM+850.LPCI provides a versatile interface for any RS-232 device including modems,
printers and plotters.
The COMM+850.LPCI utilizes the 16850 UART. This chip features programmable baud rates, data format,
interrupt control and industry leading 128-byte FIFOs.
Connector Pin Assignments
RS-232 (DB-9 Male)
Name Pin
#
Mode
TD
Transmit Data
3
Output
RTS
Request To Send
7
Output
DTR
Data Term Ready
4
Output
GND Ground
5
RD
Receive Data
2
Input
DCD
Data Carrier Detect
1
Input
DSR
Data Set Ready
6
Input
CTS
Clear To Send
8
Input
RI
Ring Indicator
9
Input
Note: These assignments meet EIA/TIA/ANSI-574 DTE for DB-9 type connectors.
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