CISCO cBR Series Converged Broadband Router User Guide
What is a Cisco cBR Series Converged Broadband Router
DOCSIS MAC/PHY Cards
• All interface line cards in the chassis must have the same downstream PHY module version; that is all
D3.0 or D3.1 modules.
• In an interface line card, both the downstream PHY modules must be the same version; that is both D3.0
or both D3.1 modules.
• The downstream D3.1 modules are supported only with the Cisco IOS-XE Release 3.16.0S and later
releases.
• If the downstream D3.1 modules are installed with the Cisco IOS-XE Release 3.15.0S, the downstream
D3.1 modules will boot up, but not function properly.
• With the Cisco IOS-XE Release 3.16.0S, the downstream D3.1 module provides operational readiness
for the implementation of DOCSIS 3.1 functions and features.
Upstream PHY Module
Each interface line card supports one upstream PHY module. The Cisco cBR chassis supports the following
upstream PHY module versions:
• Upstream D3.0 (supporting DOCSIS 3.0). [PID: CBR-D30-US-MOD]
• Upstream D3.1 (supporting DOCSIS 3.1). [PID: CBR-D31-US-MOD]
Note
The Upstream D3.1 module has a green label on it.
The following limitations are applicable to the upstream PHY modules:
• All interface line cards in the chassis must have the same upstream PHY module version; that is all D3.0
or D3.1 modules.
• The upstream D3.1 module is supported only with the Cisco IOS-XE Release 3.18.0S and later releases.
• If the upstream D3.1 modules are installed with the Cisco IOS-XE Release 3.17.0S, the upstream D3.1
modules will boot up, but not function properly.
• With the Cisco IOS-XE Release 3.18.0S, the upstream D3.1 module provides operational readiness for
the implementation of DOCSIS 3.1 functions and features.
RF PICs
The RF PICs are installed into the rear of the Cisco cBR chassis.
The RF PICs support the PHY and RF interface connections for the interface line cards. The following are
the two types of RF PICs used in the Cisco cBR chassis:
• RF Through PIC
• RF Protect PIC
RF Through PIC
The RF Through PIC connects to the line cards on the digital and RF midplanes, and provides downstream
and upstream physical connectivity. It connects to the DOCSIS MAC/PHY line card.
What is a Cisco cBR Series Converged Broadband Router
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| General | Details |
|---|---|
| Name | CISCO cBR Series Converged Broadband Router User Guide |
| Make | Cisco |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.45 MB |
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