Com1 Serial Port - Symbol Series 3300 System Administration Manual

Series 3300 System Administration Manual
COM1 Serial Port (DB-25)
The COM1 serial port is located at the bottom of the 3300, under the end cap. The
pin descriptions are listed in Table A-2.
Table A - 2 COM1 Serial Port Pin Descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12-19
20
21
22
23
24
25
A - 2
Name
GROUND
TRANSMIT DATA
RECEIVED DATA
REQUEST TO SEND
CLEAR TO SEND
DATA SET READY
SIGNAL GROUND
CARRIER DETECT
CRADLE CONTROL
CRADLE CONTROL
REV CH
Not used
DATA TERMINAL READY
Reserved**
RING INDICATOR
Reserved
+12V IN
Reserved**
*RS-232 signal
**Symbol internal test signals
Signal Direction
GND IN*
TXD OUT*
RXD IN*
RTS OUT*
CTS IN*
DSR IN*
GND — *
DCD IN*
RXD IN
TXD OUT
OUT
DTR OUT*
RI IN*
IN