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Table 5. Unshielded differential I/O cabling (P cable)
Even pin Odd pin
Signal name numbers Signal name numbers
DB– (12) 2 DB (12) 1
DB– (13) 4 DB (13) 3
DB– (14) 6 DB (14) 5
DB– (15) 8 DB (15) 7
DB– (P1) 10 DB (P1) 9
GROUND 12 GROUND 11
DB– (0) 14 DB (0) 13
DB– (1) 16 DB (1) 15
DB– (2) 18 DB (2) 17
DB– (3) 20 DB (3) 19
DB– (4) 22 DB (4) 21
DB– (5) 24 DB (5) 23
DB– (6) 26 DB (6) 25
DB– (7) 28 DB (7) 27
DB– (P) 30 DB (P) 29
GROUND 32 DIFFSENS 31
TERMPWR 34 TERMPWR 33
TERMPWR 36 TERMPWR 35
RESERVED 38 RESERVED 37
ATN– 40 ATN 39
GROUND 42 GROUND 41
BSY– 44 BSY 43
ACK– 46 ACK 45
RST– 48 RST 47
MSG– 50 MSG 49
SEL– 52 SEL 51
C/D– 54 C/D 53
REQ– 56 REQ 55
I/O– 58 I/O 57
Note. A minus sign indicates active low.
continued
20 ST43401N/ND, ST43402ND User’s Manual, Rev. B