ID Tech EzWriter - Interface; RS232 Communication Parameters; RS232 Cable Pin-Outs

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ID TECH EzWriter
Interface
The communication parameters (port settings) are fixed for both USB & RS232 operation.
The parameters are:
Baud rate: 9600
Data bits: 8
Parity: None
Stop bit: 1
RS-232:
A 6.0’ cable with DB-9 female connector with a 2.1 mm, center-positive power Jack
molded into the DB-9 housing. The following is signal pin-out of the connector:
DB-9F (RS-232) connector
PIN
Signal
Direction
1
Not Used
2
TXD
Out
3
RXD
In
4
Not Used
5
Signal Ground
6
Not used
7
CTS
In
8
RTS
Out
9
Not used
CASE
Chassis ground
Connected to the die
cast cover
POWER JACK
Center pin
+24VDC
In
Ring
Signal Ground
Table 1 RS-232 cable Pin-Outs