Cisco UBR7246VXR Installation Manual - Page 23

Browse online or download pdf Installation Manual for Network Hardware Cisco UBR7246VXR. Cisco UBR7246VXR 28 pages. Universal broadband router
Also for Cisco UBR7246VXR: Quick Start Manual (27 pages), User Manual (7 pages), Hardware Installation (25 pages)

Cisco UBR7246VXR Installation Manual
Configuring the Clock Card
To continue the Cisco Cable Clock Card installation, you must configure the primary and/or secondary
T1 interfaces. This chapter contains the following sections:

Minimum Software Requirements

You must have Cisco IOS Release 12.1(1a)T1 or later, and Cisco IOS Release 12.1(2)EC1 or later if you
are configuring the clock card with a Cisco uBR-MC16S or Cisco uBR-MC16E cable interface line card.
If you are using a Cisco uBR-MC28C cable interface line card with the clock card, you must use
Cisco IOS Release 12.1(3a)EC1 or later. If you are using a Cisco uBR-MC28U/X card, you must use
Cisco IOS Release 12.2(15)CX or later.
You can use other cable interface cards, such as the Cisco uBR-MC16C, with the clock card, but these
Note
other cable interfaces will not synchronize their downstream SYNC messages with the external clock
source.
OL-26705-01
Minimum Software Requirements, page 4-1
Configuration and Diagnostic Cisco IOS Commands for the Clock Card, page 4-2
Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband Router
4
C H A P T E R
4-1