Ubic-V Cables; Figure - Cisco 15454-DS1-14= - 1.544Mbps Expansion Module Reference Manual

1.8 UBIC-V Cables

1.8 UBIC-V Cables
Cisco Systems announced the end-of-sale and end-of-life dates for the Cisco ONS 15454 MSPP
Note
Universal BackPlane Interface Adapter, Vertical Orientation (UBIC-V), and its DS1 and DS3 Cables.
For further details, refer to Product Bulletin No. EOL5039 at
http://www.cisco.com/en/US/partner/prod/collateral/optical/ps5724/ps2006/prod_end-of-life_notice09
00aecd8052a481.html.
The UBIC-V EIA is designed to support DS-1, DS-3, or EC-1 signals. The type of signal supported is
determined by the respective UBIC-V cable assembly.
DS-1 cables for the UBIC-V have a maximum supported distance of 655 feet (199.6 m). DS-1 cables
arrive with unterminated #24 AWG twisted pairs on the far end and are color coded as identified in
Table
The following DS-1 cables are no longer available from Cisco Systems for use with the UBIC-V EIA:
•
•
•
DS-3/EC-1 cables for the UBIC-V have a maximum supported distance of 450 feet (137.2 m).
DS-3/EC-1 cables arrive with unterminated coaxial cable at the far end and labeled with the respective
port number. 75-ohm BNC connectors for each port (qty. 12) are supplied and require that they be
crimped on.
The following DS-3/EC-1 cables are no longer available from Cisco Systems for use with the UBIC-V
EIA:
•
•
•

Figure 1-23

connector.
Figure 1-23
Table 1-16
from the EIA backplane to the SCSI connector.
Conversion from the back plane's single ended (unbalanced) 75-ohm signal to a differential (balanced)
Note
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
Cisco ONS 15454 Reference Manual, R8.5
1-40
1-17.
DS-1 cable, 150 feet: 15454-CADS1-SD
DS-1 cable, 250 feet: 15454-CADS1-ID
DS-1 cable, 655 feet: 15454-CADS1-LD
DS-3/EC-1 cable, 75 feet: 15454-CADS3-SD
DS-3/EC-1 cable, 225 feet: 15454-CADS3-ID
DS-3/EC-1 cable, 450 feet: 15454-CADS3-LD
identifies the pin numbers for the DS-1 and DS-3/EC-1 cables as referenced from the SCSI
Cable Connector Pins
Pin 1
Pin 26
identifies the UBIC-V SCSI connector pin assignments for the DS-1 cables as referenced
Pin 25
Pin 50
Chapter 1 Shelf and Backplane Hardware
Figure 1-24.
78-18106-01