Brady Bradyprinter THT 300X-PLUS, Manual

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60 Bradyprinter THT X-Plus II Series User Guide
Data Ports
Standard Ports
RS-232 Interface Connections
Direct Connection to a Computer
The printer is configured as Data Terminal Equipment (DTE).
This illustration shows the internal connections of the printer’s RS-232 connector.
Note •
The cable used to connect the printer to a computer must be a null modem
(crossover) cable. To connect the printer to any other DTE devices, use a null modem
cable.
Note • Pin 9 is also available as a +5 VDC power source at 750 mA. The maximum
current draw may be limited by option configuration. To enable this capability, a
jumper on the printer’s main logic board needs to be installed on JP1, pins 2 and 3.
NOTE: Pin 1 is unused and unterminated.
RS-232 Connector (DTE)
Rear Panel Female DB-9
RXD (receive data) input
TXD (transmit data) output
DTR (data terminal ready) output
SG (signal ground)
DSR (data set ready) input
RTS (request to send) output
CTS (clear to send) input
+5 VDC signal source
2
3
4
5
6
7
8
9
R1
+5 VDC
1 K