Physical Description
Table 2–14
SCSI/IDE Busy LED Connector Pin-Out (J14)
Pin
Number
Function
1
+5 V (through 470 ohm pull-up)
2
BUSY L
3
No connection
4
+5 V (through 470 ohm pull-up)
Figure 2–7 shows the SCSI/IDE Busy LED circuit.
Figure 2–7
SCSI/IDE Busy LED Circuit
MR-6407-AI
2.2.2.15
SCSI–2 Cable Connector (J19)
The AXPpci 33 supports one SCSI–2 bus using the NCR 53C810 SCSI
controller chip. The internal SCSI is a 50-position (2 x 25) male-shrouded
keyed connector.
CAUTION: SCSI terminator power (TERM POWER) is always supplied.
Table 2–15 lists the pin numbers and functions of the SCSI–2 connector.
Table 2–15
SCSI–2 Connector Pin-Out (J19)
Pin
Number
Function
Pin
Number
Function
1
Ground
2
DB 0 L
3
Ground
4
DB 1 L
5
Ground
6
DB 2 L
7
Ground
8
DB 3 L
9
Ground
10
DB 4 L
11
Ground
12
DB 5 L
13
Ground
14
DB 6 L
2–15
Содержание AXPpci 33
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