
TS-7250 MANUAL
CONNECTORS AND HEADERS
5.3 COM1 Connector
The COM1 RS-232 port uses a DB-9 male connector on the
TS-7250
.
Table: COM1 DB9 Pin-Outs
DB9 Pin Signal
Description
1
DCD
Data Carrier Detect
2
RXD
Receive Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request to Send
8
CTS
Clear to Send
9
--
--
The base address of COM1 appears in the physical address space at
0x808C_0000
.
Technologic Systems provides software drivers to access this port. This full complement
of RS-232 signals (all except Ring Detect) allows COM1 to interface to almost any serial
RS-232 device.
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