Cisco ONS 15454 - Figure 1-23 Cable Connector Pins; Figure 1-26 Cable Connector Pins; Table 1-19 UBIC-H DS-1 SCSI Connector Pin out

1-46
Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 1 Shelf and Backplane Hardware
1.9 1.9 UBIC-H Cables
Figure 1-26 Cable Connector Pins
Table 1-19 identifies the UBIC-H SCSI connector pin assignments for the DS-1 cables as referenced
from the EIA backplane to the SCSI connector.
Note Conversion from the back plane’s single ended (unbalanced) 75-ohm signal to a differential (balanced)
100-ohm signal happens through the embedded transformer within the SCSI connector. The cable's
shield is connected to the connector shell. This conversion is illustrated in Figure 1-27.
115171
Pin 1 Pin 25
Pin 26 Pin 50
Table 1-19 UBIC-H DS-1 SCSI Connector Pin Out
Port SCSI Pin SCSI Pin Port
#1 1 26 #7
FGnd 2 27 FGnd
FGnd 3 28 FGnd
FGnd 4 29 FGnd
#2 5 30 #8
FGnd 6 31 FGnd
FGnd 7 32 FGnd
FGnd 8 33 FGnd
#3 9 34 #9
FGnd 10 35 FGnd
FGnd 11 36 FGnd
FGnd 12 37 FGnd
#4 13 38 #10
FGnd 14 39 FGnd
FGnd 15 40 FGnd
FGnd 16 41 FGnd
#5 17 42 #11
FGnd 18 43 FGnd
FGnd 19 44 FGnd
FGnd 20 45 FGnd
#6 21 46 #12
FGnd 22 47 FGnd