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JUNOSg 3.0 G10 CMTS Hardware Guide
24
The midplane is partitioned into domains A and B as described in Table 5. This is required by
the bus length restrictions stipulated in the cPCI specification. The power supplies and power
distribution panels are also separated into domains A and B.
Table 5: Midplane Configuration
The division of the domains is between slots 6 and 7. Each domain includes up to four
DOCSIS Modules, a NIC Module, and a Chassis Control Module in the front, and up to four
HFC Connector Modules or SIMs, a NIC Access Module, and a Hard Disk Module in the rear.
The number of modules depends on your planned capacity.
The domains are bridged by the Chassis Control Module. Slots 6 and 7 are keyed to accept
only a Chassis Control Module in the front and a Hard Disk Module in the rear. Peripheral
interrupts, clocks, and bus arbitration signals are routed to these system slots. Continuity of
the bus across the midplane is accomplished by the two cPCI buses extending beyond their
system slots to connect with the system slot of the other domain, as shown in Figure 10 on
page 25. The electrical connection of the Chassis Control Module to both buses is controlled
by a PCI-to-PCI bridge in the module.
Domain
Slot
Front of Midplane
Rear of Midplane
A
1
DOCSIS Module
HFC Connector Module or SIM
2
DOCSIS Module
HFC Connector Module or SIM
3
DOCSIS Module
HFC Connector Module or SIM
4
DOCSIS Module
HFC Connector Module or SIM
5
NIC Module
NIC Access Module
6
Chassis Control Module
CCM Access Module
B
7
Chassis Control Module
CCM Access Module
8
Blank
Blank
B
9
NIC Module
NIC Access Module
10
DOCSIS Module
HFC Connector Module or SIM
11
DOCSIS Module
HFC Connector Module or SIM
12
DOCSIS Module
HFC Connector Module or SIM
13
DOCSIS Module
HFC Connector Module or SIM
Release 3.0 does not support Chassis Control Module
redundancy.
Содержание G10 CMTS
Страница 8: ... JUNOSg 3 0 G10 CMTS Hardware Guide viii ...
Страница 18: ... JUNOSg 3 0 G10 CMTS Hardware Guide 2 ...
Страница 34: ...G10 CMTS Hardware Overview JUNOSg 3 0 G10 CMTS Hardware Guide 18 ...
Страница 46: ...DOCSIS Module JUNOSg 3 0 G10 CMTS Hardware Guide 30 Figure 12 DOCSIS Module Front Panel HotSwap ...
Страница 55: ... Hardware Component Overview Chassis Control Module 39 Figure 15 Chassis Control Module Front Panel Eth0 ...
Страница 72: ...Chassis Rear Modules JUNOSg 3 0 G10 CMTS Hardware Guide 56 Figure 21 Hard Disk Module Rear Panel C O M Eth ...
Страница 82: ... JUNOSg 3 0 G10 CMTS Hardware Guide 66 ...
Страница 112: ...Rack Mounting JUNOSg 3 0 G10 CMTS Hardware Guide 96 Figure 25 Air Flow Through Chassis ...
Страница 116: ...Rack Mounting JUNOSg 3 0 G10 CMTS Hardware Guide 100 Figure 29 Rack Fully Populated with Three G10 CMTS Chassis ...
Страница 118: ...Install Power Supplies JUNOSg 3 0 G10 CMTS Hardware Guide 102 Figure 30 Power Supply Installation 1 2 ...
Страница 138: ...Connect to Power Sources JUNOSg 3 0 G10 CMTS Hardware Guide 122 Figure 39 DC Power Transition Module ...
Страница 148: ... JUNOSg 3 0 G10 CMTS Hardware Guide 132 ...
Страница 156: ...Upstream RF Measurement JUNOSg 3 0 G10 CMTS Hardware Guide 140 ...
Страница 188: ... JUNOSg 3 0 G10 CMTS Hardware Guide 172 ...
Страница 196: ...Radio Frequency RF Specifications JUNOSg 3 0 G10 CMTS Hardware Guide 180 ...
Страница 202: ...EIA Channel Plans JUNOSg 3 0 G10 CMTS Hardware Guide 186 ...
Страница 203: ... 187 Part 5 Index Index on page 189 ...
Страница 204: ... JUNOSg 3 0 G10 CMTS Hardware Guide 188 ...
Страница 209: ... Index 193 Index V ventilation 69 89 95 101 124 161 162 167 video servers 7 voltage power supply 27 ...
Страница 210: ... Index JUNOSg 3 0 G10 CMTS Hardware Guide 194 ...