Impulse 7104 - Manual (Page 7)

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.