Apple 1800428-001B ユーザーズマニュアル

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Options,
Accessories,
and
Replacement
3-5
Technical Specifications
Options, Accessories, and 
Replacement Parts
See chapter 2, “Options” of this manual for a list of available printer 
options, accessories, and replacement parts.
Pinout and Cable 
Specifications
Serial Pinouts
This table gives the pinouts for the printer’s 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