December 2008
Document #: 720002-0000R 12
3.2 Pin Designation of Communication Interfaces
3.2.1 RS-232 (DB-9)
Pin Signal Name Printer I/O Host I/O Printer Function
1 AUX_PWR 5V Output N/A Aux Power (100mA)
2 RS232_TXD Output Input Data Transmit
3 RS232_RXD Input Output Data Receive
4 No Connect N/A N/A N/A
5 DGND Ground Ground Signal Ground/Aux Ground
6 No Connect N/A N/A N/A
7 RS232_CTS Input Output Handshake
8 RS232_RTS Output Input Handshake
9 NC or PWR No Connect No Connect Reserved
Table 4: 9 Pin RS232 Serial Interface
3.3 Sensors & Switches
Sensor / Switch Function
A Paper Low
N/A Top of Form (Not Shown)
Table 5: Sensors & Switches
Figure 14: Sensors & Switches
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