Manualshelf

Universal Broadband Router Hardware Installation Guide

ManualsBrandsCisco Systems ManualsNetwork RouterUniversal Broadband Router Cisco uBR10012
241242243244245246247248249250
B-2
Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
OL-18259-01
Appendix B Cable Specifications
Console and Auxiliary Port Cables and Pinouts
Note Any of the three of the coaxial cables listed can be used to connect a Cisco cable interface card to the
HFC network; however, the consistent use of 59-series cable is preferred. If you connect an 59-series
cable to a cable interface card that was previously connected using 6-series cable, the difference in the
center connector diameter might cause intermittent connectivity loss.
If you use different types of coaxial cable, the following problems can appear:
• Damage to Cisco uBR10012 router cable interface card connectors—Cable interface card
connectors are designed for 59-series or 6-series cable and connectors. Larger cables can damage
the connectors.
• Poor return loss—High quality cable and correct connectors help to ensure an optimal return loss of
16
dB or more.
Caution Poorly shielded coaxial cable may result in undesired signal leakage (egress), interference from
over-the-air signals (ingress), or crosstalk between cables in close physical proximity.
Console and Auxiliary Port Cables and Pinouts
The router arrives with a console and auxiliary cable kit, which contains the cable and adapters you need
to connect a console (an ASCII terminal or PC running terminal emulation software) or modem to the
router. The console and auxiliary cable kit includes:
• RJ-45-to-RJ-45 rollover cable
• RJ-45-to-DB-9 female data terminal equipment (DTE) adapter labeled TERMINAL
• RJ-45-to-DB-25 male data communications equipment (DCE) adapter labeled MODEM
Figure B-1 shows the RJ-45 cable connector.
Figure B-1 RJ-45 Plug and Receptacle
How to Identify an RJ-45 Rollover Cable
You can identify a rollover cable by holding the two ends of the cable next to each other, with the tab at
the back. The wire connected to the pin on the outside of the left hand plug should be the same color as
as the wire connected to the pin on the right hand plug, as shown in
Figure B-3.
H2936
8 7 6 5 4 3 2 1
RJ-45 connector