Canon FAX-L350, Service Manual

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3-85
FAX-L350 Chapter 3: Maintenance and Service
INTERFACE board (J2)
¬ ®
to Host parallel interface
J2 Host Signal name Description
1 — — HSTB STROBE*1
2 — — GND Ground
3 — — CD0 Data bus
4 — — GND Ground
5 — — CD1 Data bus
6 — — GND Ground
7 — — CD2 Data bus
8 — — GND Ground
9 — — CD3 Data bus
10 — — GND Ground
11 — — CD4 Data bus
12 — — GND Ground
13 — — CD5 Data bus
14 — — GND Ground
15 — — CD6 Data bus
16 — — GND Ground
17 — — CD7 Data bus
18 — — GND Ground
19 — — nACK *2
20 — — GND Ground
21 — — BUSY *3
22 — — GND Ground
23 — — PERROR P.E.*4
24 — — GND Ground
25 — — SELECT SELECT*5
26 — — INIT *7
27 — — nAUTOFD AUTO FEED XT*6
28 — — nFAULT Printer interrupt signal
29 — — N.C. Not used
30 — — GND Ground
31 — — GND Ground
32 — — N.C. Not used
33 — — GND Ground
34 — — +5V*2 Peripheral power
35 — — +5V*2 Peripheral power
36 — — nSELCTIN SLCT IN
*1 Data transmission synchronizing signal (Forward direction)
*2 Data transmission syncronizing signal (Reverse direction)
*3 Data reception completion signal (Forward direction)
*4 Data transmission direction change response signal
*5 Extension request response signal
*6 Data reception completion signal (Reverse direction)
*7 Data transmission direction change request signal