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7-4 Riverstone Networks RS Switch Router User Guide Release 8.0
Provisioning the Headend CMTS Configuration Guide
Figure 7-2 CMTS Connection Overview
21 21
87654321
87654321 87654321
G8M-CM
G8M-CM
CONTR
CONTR
OL MODULE
OL MODULE
10/100B
10/100B
ASE-TX
ASE-TX
G8M-HTXA2-08
G8M-HTXA2-08
DOCSIS CMTS
DOCSIS CMTS
G8M-CMTSA-4X1
G8M-CMTSA-4X1
10/100B
10/100B
ASE-TX
ASE-TX
G8M-HTXA2-08
G8M-HTXA2-08
10/100B
10/100B
ASE-TX
ASE-TX
G8M-HTXA2-08
G8M-HTXA2-08
1000B
1000B
ASE-LX
ASE-LX
G8M-GLXA9-02
G8M-GLXA9-02
1000B
1000B
ASE-SX
ASE-SX
G8M-GSXA1-02
G8M-GSXA1-02
G80-P
G80-P
AC
100-125~5A
200-240~3A
50-60 Hz
PWR
PWR
6
6
4
4
2
2
7
7
5
5
3
3
CM/1
CM/1
PS2
PS2
PS1
PS1
CM
CM
G80-CHS
G80-CHS
RS-8000
RS-8000
87654321
10/100B
10/100B
ASE-TX
ASE-TX
G8M-HTXA2-08
G8M-HTXA2-08
G80-P
G80-P
AC
100-125~5A
200-240~3A
50-60 Hz
PWR
PWR
US 1
US 1
US 2
US 2
US 3
US 3
US 4
US 4
IF DS
IF DS
Upconverter
0 to 20 dB
attenuator
(as required)
8-way
tap
3-way
splitter
+17 dBmV
video carrier
(typical)
+7 dBmV
data carrier
(typical)
Main
Headend feed
Optical
splitter
Downstream
forward
test point
Cable
modems
Distribution
network
+31 dBmV
+48 dBmV
+17 dBmV
Reverse optical
transmitter
Fiber-optic
cable
Optical
receiver
+13 dBmV
3 dB
attenuator
6 dB
attenuator
+10 dBmV
40 dB
attenuator
L
H
Diplex
filter
2-way
splitter
Cable
modem
Test setup
for transmission
Node 1
Node 2
Node n
RS-8000 with
DOCSIS CMTS
line card
To data
network
Upstream
Downstream
Test point
Cable
modems
Distribution
network
+58 dBmV
+42 dBmV
+17 dBmV
Reverse optical
transmitter
Fiber-optic
cable
Optical
receiver
+18 dBmV
8 dB
attenuator
6 dB
attenuator
+10 dBmV
40 dB
attenuator
L
H
Diplex
filter
2-way
splitter
Cable
modem
Test setup
for transmission
Modem
transmit
level
Modem
transmit
level
Upstream