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6. Interface
This appendix provides detailed specifications for the printer’s standard serial
interface.
6.1
Pins and Signal Names
Pin
No.
Signal
Name
Direction
Function
1
FG
—
Frame ground
2
TXD
OUT
Transmission data
3
RXD
IN
Receive data
4
RTS
OUT
Same as DTR signal
5
N.C.
Not connected
6
DSR
IN
• DIP Switch 9 = OFF
In DTR/DSR communication mode when Memory Switch4-5 = 0, indicates whether data
receive from host is enabled or disabled.
Space: Receive enabled
Mark: Receive disabled
This signal is not checked in the X-ON/X-OFF communication mode.
• DIP Switch 9 = ON
This signal used for external reset. Printer is reset whenever signal is in mark state with
pulse width of 1mS or more.
7
SG
Signal ground
8 -19
N.C.
Not connected
13
25
1
14
Summary of Contents for CBM-820
Page 1: ...TERMINAL SLIP PRINTER MODEL CBM 820 User s Manual...
Page 2: ......
Page 91: ...76 10 Character Codes Table 10 1 Codepage PC437 USA European Standard...
Page 92: ...77 10 2 Codepage Katakana Japanese...
Page 93: ...78 10 3 Codepage PC850 Multilingual...
Page 94: ...79 10 4 Codepage PC860 Portuguese...
Page 95: ...80 10 5 Codepage PC863 Canadian French...
Page 96: ...81 10 6 Codepage PC865 Nordic...
Page 97: ...82 10 7 Codepage PC852 Eastern Europe...
Page 98: ...83 10 8 Codepage PC866 Russian...
Page 99: ...84 10 9 Codepage PC857 Turkish...
Page 100: ...85 10 10 Windows Codepage...
Page 101: ...86 10 11 Codepage PC858 Multilingual Euro...
Page 104: ...German...
Page 144: ...1 09E 0605 Printed in Japan...