4.1.3 Serial port interface to the space-saving base portion
(a) Power cable connector: DC jack (5.5/2.1)
(b) RS232C interface pass through cable connector: D-sub 25 pin female pin
assignment
Pin No. Signal Input / Output direction Function description
2 RXD From printer to PC/Host Printer status data
3 TXD Output Transmit data
4 CTS Input Printer ready signal
5 RTS From PC/HOST to printer Host ready signal
6 DTR From PC/HOST to printer Host ready signal
7 GND Signal ground
20 DSR Input Printer ready signal
Table 4-3
(c) RS232C interface to PC/HOST cable, PC/HOST side connector pin assignment
Connector type: D-sub 9 pin (Male)
Pin No. Signal Direction Function description
2 TXD From printer to PC/Host Printer status data
3 RXD Input Receive data
4 DSR From PC/HOST to printer Host ready signal
5 GND Signal ground
6 DTR Output Display/printer ready signal
7 RTS Output Display/printer ready signal
8 CTS From PC/HOST to printer Host ready signal
Table 4-4
GND 5V or 12V
1 13
14 25
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