Cisco WCM300 - Channel Bonded Cable Modem Implementation Manual page 23

Chapter 2 Cisco Cable Wideband Components
Table 2-2
Cable Interface Line Card
Cisco uBR10-MC5X20S
Cisco uBR10-MC5X20U
Cisco uBR10-MC5X20H
Cisco uBR10-MC5X20U-D
1. QAM = Quadrature Amplitude Modulation
2. QPSK = Quadrature Phase Shift Keying
The Cisco uBR-MC5X20S/U/H and uBR10-MC5X20U-D line cards use space-saving dense connectors.
Each line card supports online insertion and removal (OIR) and can be added or removed without
powering off the chassis. For more information on these cable interface line cards, refer to the document
Cisco uBR10-MC5X20S/U/H Cable Interface Line Card (hardware installation).
Cisco Half-Height Gigabit Ethernet Line Card
The Cisco half-height Gigabit Ethernet (HHGE) line card is a single-port Gigabit Ethernet (GE) line card
that provides a trunk uplink to devices such as backbone routers, as well as connections to content
servers and IP telephony gateways. The GE line card provides the Cisco uBR10012 router with an IEEE
802.3z compliant Ethernet interface that can run up to 1 Gbps in full duplex mode.
faceplate for the HHGE line card.
Figure 2-4
1
1
2
3
The Cisco uBR10012 router supports up to four HHGE line cards to allow connectivity to multiple
destinations, and to provide network layer redundancy. The HHGE line card requires a slot splitter card
that should be installed in either slot 4/0 or slot 3/0 on the uBR10012 router. Each slot splitter can hold
two HHGE line cards. Therefore, the uBR10012 base system with two slot splitters supports up to four
HHGE lines cards.
The HHGE line card uses a small form-factor pluggable (SFP) gigabit interface converter (GBIC)
module that supports a variety of Gigabit Ethernet interface types (SX LX/LH, and ZX), which you can
change or upgrade at any time.
OL-10705-02
Supported DOCSIS and EuroDOCSIS Modulation Schemes
Half-Height Gigabit Ethernet Line Card Faceplate
3
2
5 6
Ejector Levers
FAIL LED (yellow)
Receive Packet (green)
Cisco Cable Wideband Solution Design and Implementation Guide, Release 1.0
Downstream Modulation
1
64-QAM , 256-QAM
64-QAM, 256-QAM
64-QAM, 256-QAM
64-QAM, 256-QAM
4
TX
RX
GIGABIT ETHERNET
4 SFP Gigabit Ethernet Interface Converter
5
Link Status (green)
6 Transmit Packet (green)
Base CMTS Components
Upstream Modulation
2
QPSK , 8-, 16-, 32-, 64-QAM
QPSK, 8-, 16-, 32-, 64-QAM
QPSK, 8-, 16-, 32-, 64-QAM
QPSK, 8-, 16-, 32-, 64-QAM
Figure 2-4
1
shows the
2-7