ITX 3000/2000 Printer User Manual
(UMITX315.PDF
)
Page 27 of 82 Date: 4/27/05
7.2
RS232 Serial Interface
The RS232 Interface is one of the optional Interfaces for the ITX Printer. Connection to this Interface is by a DB9 (M/F),
straight through wiring, shielded cable.
Note: This serial interface only supported by FGL Firmware printers.
7.2.1
RS-232 Serial Interface Card Assembly
Closed/ On
Open/ Off
Dip Switch
Positions
7.2.2
Serial DIP-Switch Settings
Dip Switch =
0 = Closed/ On
1
=
Open/
Off
Dip Switch
Notes
1
Baud
0 = 9600 ; 1 = 4800; 0 = 19.2K; 1 = 57.6K; 0 = 1200; 0 1 1 =
(Future)
2
Baud
0
0
1 1 0 1 0 1
3 Baud
0
0
0
0 1 1 1 1
4
Data Length
0 = 8 Bits
1= 7 Bits
5
Parity Check
0 = Disabled
1 = Enabled
6
Parity Type
0 = Even
1 = Odd
7
Flow Control
0 = Busy
1 = Xon/Xoff
8
(Future)
0 0
Factory Default =
0x00 = 9600 Baud, 8 Data Bits, No Parity, Busy Flow Control
7.2.3
Serial Interface Pin-out
Serial Adapter
(DS-9S)
Connector
Pin No.
Printer
Signal Name
Type
Description
Typical
PC Port
9- Pin
1
CD+
OUTPUT
Fixed spacing signal (pull-up to +5V) Carrier Detect Pull-up
1 = CD (I)
2
XMIT
OUTPUT
Data Transmitted by the printer
2 = RxD (I)
3
RECV
INPUT
Data Received by the printer
3 = TxD (O)
4
N.C.
INPUT
Not Used
4 = DTR (O)
5
Ground
Logic/Signal ground
5 = GND
6
DTR+
OUTPUT
Fixed spacing signal (pull-up to +5V) DTR Pull-Up
6 = DSR (I)
7
AUX_RECV
INPUT
Aux Data Receive
7 = RTS (O)
8
/BUSY
OUTPUT
Busy flow control bit, HIGH = Not Busy/Ready for Data;
(in XON/XOFF mode this signal is always Not Busy = High).
8 = CTS (I)
9
RI+
OUTPUT
Fixed spacing signal (pull-up to +5V) Ring Indicator Pull-up
9 = RI (I)
Shell
Frame
Chassis ground – data cable shield connection
