5.5 Current Loop and TTL |
|
5.5.1 Interface Loop |
|
(a) Current Loop |
|
Input (RD) |
|
Printer side | Computer side |
Output (DTR)
Note: Resistance should be set so that Current Loop is restricted within 10 ~ 20 mA.
(b)TTL
Input (RD)
Printer side | Computer side |
Equivalent to 7407
Output (DTR FAULT)
Note: Output is open collector.
CITIZEN | 16 |
