Riverstone Networks WICT1-12 - Manual (Page 116)

7-4 Riverstone Networks RS Switch Router User Guide Release 8.0
Provisioning the Headend CMTS Configuration Guide
Figure 7-2 CMTS Connection Overview
2 1 2 1
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
G8M-CM G8M-CM CONTR CONTROL MODULE OL MODULE
10/100B 10/100BASE-TX ASE-TX G8M-HTXA2-08 G8M-HTXA2-08
DOCSIS CMTS DOCSIS CMTS G8M-CMTSA-4X1 G8M-CMTSA-4X1
10/100B 10/100BASE-TX ASE-TX G8M-HTXA2-08 G8M-HTXA2-08
10/100B 10/100BASE-TX ASE-TX G8M-HTXA2-08 G8M-HTXA2-08
1000B 1000BASE-LX ASE-LX G8M-GLXA9-02 G8M-GLXA9-02 1000B 1000BASE-SX ASE-SX G8M-GSXA1-02 G8M-GSXA1-02
G80-P G80-PAC 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
8 7 6 5 4 3 2 1 10/100B 10/100BASE-TX ASE-TX G8M-HTXA2-08 G8M-HTXA2-08
G80-P G80-PAC 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