Unit
Specifications
© Diebold Election Systems, Inc. 2002 AccuVote-OS Hardware Guide
60
Appendix B: RS-232 Pin Definitions
The following table defines the signals and corresponding pins on the rear DB9-M serial
connector which is wired as a DTE. This table represents a complete definition of all the pin
assignments for the connector.
Note that not all of these pins are used by the AccuVote-OS ballot processing unit.
DB9-M
PIN NO.
SIGNAL NAME
SIGNAL
FUNCTION
SIGNAL
DIRECTION
USED BY
ACCUVOTE-OS?
1
DCD
Data Carrier
Detect
From Host
N
2
RXD
Receive Data
From Host
Y
3
TXD
Transmit Data
To Host
Y
4
DTR
Data Terminal
Ready
To Host
N
5
GND
Signal Ground
Both
Y
6
DSR
Data Set Ready
From Host
N
7
RTS
Request to Send
To Host
N
8
CTS
Clear to Send
From Host
N
9
RI
Ring Indicator
From Host
N
Содержание AccuVote-OS 1.94
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