Hardware manual

- 15 -
3. Interface
3.1. RS-232C
This printer has a RS-232C interface and is connected by means
of a 5 pin mini USB socket. In the following table, the signals present on the Mini-
USB socket are listed:
Pin No. Name Direction Function
1 TxD Output Transmit Data
2 RxD Input Receive Data
3 CTS - -
4 NC. - -
5 GND - Ground
* Applicable connector: SUNG KYUNG (CM-720)
Caution :
When it removes the communication cable during receiving data, it loses a data.
Don’t connect USB mini B cable here.