RJ12 Combined Data Socket Detail
Pin
Signal
Direction
Description
1
Not Used
Do Not Connect
2
Not Used
Do Not Connect
3
To Printer
RS-232 Rx data
4
To Host
RS-232 Tx data
5
To Host
RS-232 Busy
6
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0V Common (RS-232 signal return and Charger return)
DATA CABLE
An optional serial data cable suitable for connecting the printer to a standard PC is available. (Note: This
cable features an integrated charger connector in the housing of the DB-9 connector which is not required
for this printer. Please make no connection to this integrated connector.)
The connections to a standard PC COM port are as follows:
DB-9 Pin
Name
Description (refers to PC)
RJ12 Pin
3
TxD
Serial Data Output
3
2
RxD
Serial Data Input
4
6 & 8
CTS & DSR
Busy Input
5
5
SGND
Signal Common 0V
6
EMC STATEMENT
The DT-520 printers are fully EMC (Electro-Magnetic Compatibility) compliant and are CE marked
accordingly. A Declaration of Conformity, in accordance with the EMC Directive 89/336/EEC (and as
amended) is available on request.
EMC Caution
System EMC compliance remains the responsibility of the system designer. It is recommended that
shielded cables are used; grounding arrangements will depend on the application.
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