Technical information

All interface conditions are based on Transistor-Transistor Logic
(TTL) level. Both the rise and fall times of each signal must be
less than 0.2 microseconds.
Data transfer must be carried out by recognizing the ACKNLG or
BUSY signal.
The cable must have an overall braided shield, Belden 8345 or
equivalent.
This table gives the pinouts for the 9-pin RS-232 interface port.
Pin Name
1 Not Used
2 Receive Data (RXD)
3 Transmit Data (TXD)
4 Data Terminal Ready (DTR)
5 Signal Ground (GND)
6 Data Set Ready (DSR)
7 Ready To Send (RTS)
8 Clear To Send (CTS)
9 Reserved