Citizen Systems CBM920II Benutzerhandbuch

— 30 —

DATA

10k

STB

ACK, BUSY, PE, FAULT

RESET

10k

330

102

102

5k

104

10k

(1)

Input signal level
The input except RESET are CMOS signal levels. As the input side is pulled up
with a resistance of 10 kΩ, it can be used at TTL level.

CMOS Level

TTL Level

“HIGH” level: 4.0 V MIN

“HIGH” level: 2.4 V MIN

“LOW” level: 1.0 V MAX

“LOW” level: 0.4 V MAX

(2)

Output signal level
All inputs are TTL level.  As the input side is pulled up with a resistance of 10 kΩ,
it can be used at TTL level.
“HIGH” level: 2.4 V MIN
“LOW” level: 0.4 V MAX

(3)

I/O conditions

< HOST SIDE >

< PRINTER SIDE >

 (HC573 or equivalent)

 (HC04 or equivalent)

 (7406 or equivalent)

 (HC05 or equivalent)