| (J101) 50 pin Centronics Socket | PIN | DESCRIPTION | NO. | CHANNEL | PIN | DESCRIPTION | NO. | | 1 | Output | 1 | A | 26 | Common | 1 | | | Output | 1 | B | 27 | Common | | 3 | Output | 2 | A | 28 | Common | 2 | | 4 | Output | 2 | B | 29 | Common | | 5 | Output | 3 | A | 30 | Common | 3 | | 6 | Output | 3 | B | 31 | Common | | 7 | Output | 4 | A | 32 | Common | 4 | | 8 | Output | 4 | B | 33 | Common | | 9 | Output | 5 | A | 34 | Common | 5 | | 10 | Output | 5 | B | 35 | Common | | 11 | Output | 6 | A | 36 | Common | 6 | | 12 | Output | 6 | B | 37 | Common | | 13 | Output | 7 | A | 38 | Common | 7 | | 14 | Output | 7 | B | 39 | Common | | 15 | Output | 8 | A | 40 | Common | 8 | | 16 | Output | 8 | B | 41 | Common | | 17 | Output | 9 | A | 42 | Common | 9 | | 18 | Output | 9 | B | 43 | Common | | 19 | Output | 10 | A | 44 | Common | 10 | | 20 | Output | 10 | B | 45 | Common | | 21 | Spare | 46 | Spare | | 22 | Spare | 47 | Spare | | 23 | Spare | 48 | Spare | | 24 | Spare | 49 | Spare | | 25 | Spare | 50 | Spare | | 
