iDP-562 User’s Manual
CITIZEN
11
5.5 Current Loop and TTL
5.5.1 Interface Circuit
(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.