Epson RC420, Manual

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Setup & Operation 7.4 Expansion I/O Board : Pin Assignments (Expansion I/O Board - Optional)
58 RC420 Rev.9
7.4 Expansion I/O Board : Pin Assignments
7.4.1 Expansion I/O Board : Pin Assignments (NPN type)
NPN : Pin No. 1-50
Pin No. Signal Name Pin No. Signal Name
1 Input common A (No. 48 to 51) 26 Output common A (GND: No. 48 to 51)
2 NC 27 Output No.48
3 Input No.48 28 Output No.49
4 Input No.49 29 Output No.50
5 Input No.50 30 Output No.51
6 Input No.51 31 Output common C (+DC: No. 56 to 59)
7 Input common C (No. 56 to 59) 32 Output common C (GND: No. 56 to 59)
8 NC 33 Output No.56
9 Input No.56 34 Output No.57
10 Input No.57 35 Output No.58
11 Input No.58 36 Output No.59
12 Input No.59 37 Output common E (+DC: No. 64 to 67)
13 Input common E (No. 64 to 67) 38 Output common E (GND: No. 64 to 67)
14 NC 39 Output No.64
15 Input No.64 40 Output No.65
16 Input No.65 41 Output No.66
17 Input No.66 42 Output No.67
18 Input No.67 43 Output common G (+DC: No. 72 to 75)
19 Input common G (No. 72 to 75) 44 Output common G (GND: No. 72 to 75)
20 NC 45 Output No.72
21 Input No.72 46 Output No.73
22 Input No.73 47 Output No.74
23 Input No.74 48 Output No.75
24 Input No.75 49 FG
25 Output common A (+DC: No. 48 to 51) 50 FG