Specifications

4-5
APA-1460 SlimSCSI Technical Reference
Stock Number: 510671-00, Rev. A Page: 4-5
Print Spec Number: 492966-00, Rev. A
Current Date: 8/22/94 ECN Date: 8/30/94
Connector Pinout
SCSI 50-pin Shielded Connector
The following table gives the pinout for the SCSI 50-pin shielded connector. This pinout is
functionally identical to that shown in the SCSI Specification (see page -4, Related Docu-
ments). There are several GND signals which are not connected in the APA-1460 Cable.
Also, pin 38, +TERMPWR, is not connected in the APA-1460 Cable, and thereby the
APA-1460 does not provide termination power to the external device.
There is a drain wire in the APA-1460 Cable which electrically connects the metal shield of
the SCSI 50-pin shielded connector, the aluminum-mylar foil cable shield, and the shield
GND (see APA-1460 Card and Cable Connector on page 4-6).
Table 4-2. SCSI 50-Pin Shielded Connector Pinout
Signal Name Pin Pin Signal Name
GND 1 26 -DB0
GND 2 27 -DB1
GND 3 28 -DB2
GND 4 29 -DB3
GND 5 30 -DB4
GND 6 31 -DB5
GND 7 32 -DB6
GND 8 33 -DB7
GND 9 34 -DBP
N/C (GND) 10 35 N/C (GND)
N/C (GND) 11 36 N/C (GND)
N/C (GND) 12 37 N/C (GND)
N/C (GND) 13 38 N/C (GND)
N/C (GND) 14 39 N/C (GND)
N/C (GND) 15 40 N/C (GND)
GND 16 41 -ATN
N/C (GND) 17 42 N/C (GND)
GND 18 43 -BSY
GND 19 44 -ACK
GND 20 45 -RST
GND 21 46 -MSG
GND 22 47 -SEL
GND 23 48 -C/D
GND 24 49 -REQ
GND 25 50 -I/O