Pico Digital miniCMTS200a User manual

Copyright © 2014 Pico Digital Inc. All rights reserved subject to change
www . picodigital .com CONTACT US 858.546.5050
User Manual
miniCMTS200a
By Andrew
Pico Digital Inc.
www.picodigital.com
24 July 2014
Release 1.5

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Product Inspection
Inspect the equipment for shipping damage. Should any damage be discovered, immediately file a claim with the
carrier.
Important Safety Instructions
To ensure proper installation and operation, take a moment to read this guide before proceeding with the
installation. If you have any questions or comments about the product, please contact your dealer or have him
contact the Pico Digital service center at this phone number: 800-421-6511.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literatur e accompanying the appliance.
1. Read Instructions: All safety and operating instructions should
be read before the appliance is operated.
2. Retain Instructions: The safety and operating instructions
should be retained for future reference.
3. Heed Warnings: All warnings on the appliance should be
adhered to.
4. Follow Instructions: All operating and user instructions should
be followed.
5. Cleaning: Unplug this appliance from the wall outlet before
cleaning. Use a damp cloth for cleaning. Do not use liquid
cleaners or aerosol cleansers.
6. Do Not Use Attachments: Use of attachments not
recommended by the manufacturer may cause hazards.
7. Water and Moisture: Do not use this product near water for
example, near a bathtub, washbowl, kitchen sink, laundry tub, in
a wet basement, or near a swimming pool and the like.
8. Accessories: Do not place this product on an unstable cart,
stand, tripod, bracket, or table. The product may fall, causing
serious injury to a child or adult, and serious damage to the
appliance.
9. Elevated Operating Ambient: If installed in a closed or multi-
unit rack assembly, the operating ambient temperature of the
rack environment may be greaterthan room ambient. Therefore,
consideration should be given to installing the equipment in an
environment compatible with themaximum ambient temperature
50°C.
10. Reduced Air Flow: Installation of the equipment in a rack should
be such that the amount of air flow required for safe operation of
the equipment is not compromised.
11. Mechanical Loading: The product is designed to be rack
mounted in a standard EIA 19 inch width telecommunications
rack. Mounting of the equipment in the rack should be such that
a hazardous condition is not achieved due to uneven mechanical
loading.
12. Circuit Overloading: Consideration should be given to the
connection of the equipment to the supply circuit and the effect
that overloading of the circuits might have on over current
protection and supply wiring. Appropriate consideration of
equipment nameplate ratings should be used when addressing
this concern.
13. Reliable Earthing: Reliable earthing of rack-mounted
equipment should be maintained. Particular attention should be
given to supply connections other than direct connections to the
branch circuit (e.g. use of power strips)
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE. DO NOT OPEN THE CABINET
REFER SERVICING TO QUALIFIED PERSONNEL ONLY
CAUTION:
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS (POLARIZED) PLUG
WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLET UNLESS
THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
ATTENCION:
POUR PREVENIR LES CHOCS ELECTRIQUES, NE PAS UTILISER CETTE
FICHE POLARISEE AVEC UN PROLONGATEUR, UNE PRISE DE COURANT
OU UNE AUTRE SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE
INSEREES A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT

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14. Power Sources: This product should be operated only from the
type of power source indicated on the marking label. If you are
not sure of the type of power supplied to your home, consult your
appliance dealer or local power company.
15. Power-cord Protection: Power-supply cords should be routed
so they are not likely to be walked on or pinched by items placed
upon or against them. Payparticular attention tocords and plugs,
convenience receptacles, and the point where they exit from the
appliance.
16. Lightning: For added protection for this product during a
lightning storm, or when it is left unattended or unused for long
periods of time, the unit should be disconnected from power
source.
17. Power Lines: An outside antenna system should not be located
in the vicinity of overhead power lines, other electric light or
power circuits, where it can fall into such power lines or circuits.
When installing an outside antenna system, extreme care should
be taken to keep from touching such power lines or circuits as
contact with them may be fatal.
18. Object and Liquid Entry: Never push objects of any kind into
this product through openings as they may touch dangerous
voltage points or short-out parts that could result in a fire or
electric shock. Never spill liquid of any kind on the product.
19. Servicing: Do not attempt to service this product yourself as
opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service
personnel.
20. Damage Requiring Service: Unplug this product from the wall
outlet and refer servicing to qualified service personnel under the
following conditions:
a. When the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into the
product.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally by following the
operating instruction. Adjust only those controls that are
covered by the operating instructions. An improper
adjustment may result in damage and will often require
extensive work by a qualified technician to restore the
product to its normal operation.
e. If the product has been dropped or the cabinet has been
damaged.
f. When the product exhibits a distinct change in
performance—this indicates a need for service.
21. Replacement Parts: When replacement parts are required, be
sure the service technician has used replacement parts specified
by the manufacturer or have the same characteristics as the
original parts. Unauthorized substitutes may result in fire, electric
shock or other hazards.
22. Safety Check: Upon completion of any service or repairs to this
product, ask the service technician to perform safety checks to
determine that the product is in proper operating conditions.
23. Outdoor Antenna Grounding: Before attempting to install this
product, be sure the antenna or cable system is grounded so as
to provide some protection against voltage surges and built-up
static charges.
a. Use No.10 AWG (5.3mm) copper, No.8 AWG (8.4mm)
aluminum, No.7 AWG (10mm) copper-clad steel or bronze
wire or larger, as ground wire.
b. Secure antenna lead-in and ground wires to house with
stand-off insulators spaced from 4 feet (1.22m) to 6 feet
(1.83m) apart.
c. Mount TV antenna discharge unit as close as possible to
where lead-in enters house.
d. A driven rod may be used as the grounding electrode where
other types of electrode systems do not exist. Refer to the
National Electrical Code, ANSI/NFPA 70-1984 for
information.
e. Use jumper wire not smaller than No.6 AWG (13.3mm)
copper or equivalent, when a separate antenna grounding
electrode is used
Equipment connected to the protective earthing of the
building installation through the main connection orthrough other
equipment with a connection to protective earthing –and to a
cable distribution system using coaxial cable, may in some
circumstances create a fire hazard. Connection to a cable
distributionsystemmustthereforebeprovidedthroughagalvanic
isolator providing electrical isolation below 5 MHz
NOTE TO THE CATV SYSTEM INST ALLER
THIS REMINDER IS PROVIDED TO CALL THE CATV
SYSTEM INSTALLER’S ATTENTION TO ARTICLE 820-22 OF THE
NEC THAT PROVIDES GUIDELINES FOR PROPER GROUNDING
AND, IN PARTICULAR, SPECIFIES THAT THE CABLE GROUND
SHALL BE CONNECTED TO THE GROUNDING SYSTEM OF THE
BUILDING, AS CLOSE TO THE POINT OF CABLE ENTRY AS
PRACTICAL.

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All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including but not limited to photocopying, recording, or by any information storage and
retrieval system without the prior written permission from Pico Digital, Inc.
Warning and Disclaimer
This document is intended to provide information about installing and operating the “IPQC”. Every effort has been
made to make this document as complete and accurate as possible, but no warranty or fitness is implied. The
information is provided on an “as is” basis and Pico Digital, Inc. shall have neither liability nor responsibility to any
person or entity with respect to any loss or damages arising from the information contained in this document.
Acknowledge of Trademarks
Any product or corporate names used herein may be trademarks or registered trademarks, and are only used for
identification and explanation, without intent to infringe. Any terms mentioned or used that are known trademarks
or service marks have been appropriately capitalized and italicized. Pico Digital, Inc. cannot attest to the accuracy
of this information. Use of a term in this manual should not be regarded as affecting the validity of any trademark
or service mark.
Printed in the United States of America
Pico Digital, Inc.
8880 Rehco Road
San Diego, CA 92121
Patent Pending
Warning! Approved external telecom power cross protection must be incorporated into the final installation
in accordance with Annex NAC of UL/CSA standard 60950-1. Failure to comply may result in a fire or electric shock
hazard and will void regulatory compliance certification.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION OF THIS DEVICE IS SUBJECT
TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE,
AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT
MAY CAUSE UNDESIRED OPERATION.

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Table of Contents
1Introduction.........................................................................................................................................................8
1.1 Introducing the miniCMTS200a....................................................................................................................8
1.2 Features.......................................................................................................................................................8
1.2.1 DOCSIS ................................................................................................................................................8
1.2.2 Network features...................................................................................................................................8
1.2.3 IPTV and Multicast features..................................................................................................................8
1.2.4 Security features...................................................................................................................................8
1.2.5 Monitoring and Management features..................................................................................................9
2Installation........................................................................................................................................................ 10
2.1 Unpacking the Unit.................................................................................................................................... 10
2.2 Before Rack Mounting............................................................................................................................... 10
2.3 Rack Mounting .......................................................................................................................................... 10
2.4 Front Panel................................................................................................................................................ 11
2.5 Rear Panel ................................................................................................................................................ 11
2.5.1 Ground............................................................................................................................................... 11
2.5.2 Upstream RF connection ................................................................................................................... 11
2.5.3 Downstream RF connection............................................................................................................... 11
2.5.4 Management Ethernet ....................................................................................................................... 11
2.5.5 Data Ethernet..................................................................................................................................... 12
2.5.6 SFP.................................................................................................................................................... 12
2.5.7 Console.............................................................................................................................................. 12
2.5.8 Power & Power Switch....................................................................................................................... 12
2.6 Overview of miniCMTS ............................................................................................................................. 12
2.7 RF Configuration....................................................................................................................................... 13
3Basic Setup Guide........................................................................................................................................... 14
3.1.1 Login & Language.............................................................................................................................. 14
3.1.2 Start Page.......................................................................................................................................... 15
3.1.3 Network Setup–Management IP and VLAN ..................................................................................... 16
Channel Settings - Downstream Channels...................................................................................................... 17

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3.1.4 RF Settings - Upstream Channels..................................................................................................... 18
3.1.5 Time Synchronization ........................................................................................................................ 19
3.1.6 Network Setup: DHCP Relay, VLAN tagging..................................................................................... 20
3.1.7 Business Model Settings –“Relay Model” ......................................................................................... 20
3.1.8 Business Model Settings: “Option60 Model”...................................................................................... 22
3.1.9 IPQAM Setup..................................................................................................................................... 22
3.1.10 Cable Modem Analysis –basic tools................................................................................................. 22
4MiniCMTS Web Interface................................................................................................................................. 24
4.1 Start page.................................................................................................................................................. 24
4.2 Channel Settings....................................................................................................................................... 24
4.3 Network Settings....................................................................................................................................... 24
4.3.1 Manage IP.......................................................................................................................................... 24
4.3.2 Business IP........................................................................................................................................ 24
4.3.3 Option60 Settings .............................................................................................................................. 24
4.3.4 Business Model Settings.................................................................................................................... 24
4.3.5 L2VPN................................................................................................................................................ 24
4.3.6 Server Settings .................................................................................................................................. 24
4.3.7 SNMP Settings................................................................................................................................... 24
4.3.8 CM SNMP Settings............................................................................................................................ 25
4.4 Advanced Network Settings...................................................................................................................... 25
4.4.1 Uplink Settings................................................................................................................................... 25
4.4.2 Port Isolation...................................................................................................................................... 25
4.5 Security ..................................................................................................................................................... 25
4.5.1 IP Address Check.............................................................................................................................. 25
4.5.2 Cable Security.................................................................................................................................... 25
4.6 Terminal Management .............................................................................................................................. 26
4.6.1 CM List............................................................................................................................................... 26
4.6.2 CPE List& CPE List Advance ............................................................................................................ 26
4.6.3 Load Balancing .................................................................................................................................. 26
4.6.4 QOS................................................................................................................................................... 26
4.6.5 MAC Aging......................................................................................................................................... 26
4.6.6 Flap List.............................................................................................................................................. 26
4.7 System Monitor ......................................................................................................................................... 27

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4.7.1 Hardware Status ................................................................................................................................ 27
4.7.2 Log Record ........................................................................................................................................ 27
4.8 Device Management ................................................................................................................................. 27
4.8.1 Version Upgrade................................................................................................................................ 27
4.8.2 Users Management............................................................................................................................ 27
4.8.3 Config Management........................................................................................................................... 27
4.9 Device Tools (Right Top of Start Page) .................................................................................................... 27
4.9.1 Signal Check...................................................................................................................................... 27
4.9.2 Snooping............................................................................................................................................ 27
5Setup a Basic System...................................................................................................................................... 28
5.1 RF............................................................................................................................................................... 28
5.2 miniCMTS200a IP configuration .................................................................................................................... 29
5.3 Installation Procedure .................................................................................................................................. 29
5.4 Configuration Procedure ........................................................................................................................... 29
Table of Figures
Figure 1 miniCMTS200a.............................................................................................................................................8
Figure 2 miniCMTS200a Front Panel...................................................................................................................... 11
Figure 3 miniCMTS200a Rear Panel....................................................................................................................... 11
Figure 4 miniCMTS block diagram .......................................................................................................................... 12
Figure 5 Simple RF network.................................................................................................................................... 13
Figure 6 Logon Page............................................................................................................................................... 14
Figure 7 Start Page.................................................................................................................................................. 15
Figure 8 Network Setup Page ................................................................................................................................. 16
Figure 9 Downstream Channel Page ...................................................................................................................... 17
Figure 10 Upstream Channel Page......................................................................................................................... 18
Figure 11 Time Synchronization.............................................................................................................................. 19
Figure 12 Business IP.............................................................................................................................................. 20
Figure 13 Business Model Settings......................................................................................................................... 20
Figure 14 Business IP - VLAN Tagging................................................................................................................... 21
Figure 15 Business Model Settings - VLAN ID........................................................................................................ 21

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Figure 16 Business Model Option 60 ...................................................................................................................... 22
Figure 17 CM List .................................................................................................................................................... 22
Figure 18 IP Address Check.................................................................................................................................... 25
Figure 19 Load Balancing........................................................................................................................................ 26
Figure 20 QOS......................................................................................................................................................... 26
Figure 21 Basic Network setup................................................................................................................................ 28
Table of Tables
Table 1 Revision History.............................................................................................................................................7
Revision History
Rev
#
Date
SW Version
Description
1.3
7/18/2014
NA
New format and consolidated documents
1.4
7/18/2014
NA
Minor changes
1.5
7/24/2014
NA
Minor corrections
Table 1 Revision History

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1 Introduction
1.1 Introducing the miniCMTS200a
As an alternative to larger, more expensive cable modem termination systems (CMTS) and second-hand units with
low bandwidth, Pico Digital's miniCMTS is designed to provide smaller cable operators with the capabilities they
need at an exceptional value. The low-cost unit supports up to 400 DOCSIS cable modems (max. 250 DOCSIS 3.0
+ 150 DOCSIS 2.0 or 400 DOCSIS 2.0) and offers 16 downstream bonded channels for up to 800-Mbps
downstream /120-Mbps upstream data delivery. Ideal for providing high-speed data services to commercial
residential properties and academic and medical facilities, as well as the hospitality industry, the miniCMTS features
an extensive Web interface for simple configuration, management, and debugging.
Figure 1 miniCMTS200a
1.2 Features
1.2.1 DOCSIS
QoS supported
Load Balancing supported
BPI+ supported
Upstream Scheduler supported: Best Effort, UGS, UGS/AD
1.2.2 Network features
CMTS IP - static or DHCP based
Up to 3 LAN ports available
oall LAN ports fully, independently configurable
odesigned to split customer traffic, cable modem traffic and management traffic
oVLAN tagging possible (QinQ is not supported)
DHCP relay, Option 60 tuning, Option 82insertion
VLAN assignment for Management traffic
VLANs assignment for Cable Modems, CPEs and MTAs.
L2VPN based on DOCSIS standard “BSoD”
Complex VLAN setup separating CM and CPE traffic into VLANs per individual CM and CPE
1.2.3 IPTV and Multicast features
IPv4 Multicast supported, enabling IPTV over DOCSIS through miniCMTS.
1.2.4 Security features
IP Address Check based on DHCP snooping- blocking of IPs not assigned by DHCP.

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Cable Security: blocks access from CPEs to internal miniCMTS IPs.
1.2.5 Monitoring and Management features
GUI tool monitoring US SNR and FEC per US and per CM.
Cable modem monitoring: via CMTS web interface, includes main RF values read from Cable Modems via
SNMP.
SNMP support for main DOCSIS OIDs.
SNMP support for miniCMTS environment monitoring.
DHCP snooping log: provides DHCP diagnostics.
MiniCMTS Time Synchronization.
Hardware monitoring: temperature, voltage etc.
Software upgrades
Alarming
TCPDUMP - Packet tracing

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2 Installation
2.1 Unpacking the Unit
Please inspect the carton upon receiving and note any damage while inspecting for possible unit damage. Please
open the carton and unpack carefully. Locate:
The miniCMTS200a unit
The power cord
2.2 Before Rack Mounting
There are no user adjustable switches, jumpers or controls inside the unit itself, so do not open the unit. Opening
the unit will result in voiding of the warranty.
2.3 Rack Mounting
The unit is designed for installation in an EIA standard 19-inch (480 mm) equipment rack. When mounting in the
rack, use pan or round head screws and soft washers in all four front panel mounting locations. This ensures a
secure mount. You must supply screws matching your rack.
To prolong service life, pay special attention that the environment in which the unit is being used is as free of dust
and other airborne particles as possible.
Make sure the unit is operated in a moderate temperature environment. The miniCMTS200a is fan cooled. Never
place a unit near a heat source. Do not install a unit in areas of extremely high humidity or where there is any danger
of water or condensate dripping into or on the unit.
Where space is not an issue, allow a 1.75-inch (1RU) air gap above and below receivers for cooling purposes.
However, you may install the units with no air gap between them and have reliable operation. Never install multiple
units or any other equipment units in such a way that the air intake from one unit directly aligns with the outlet of
another. Long-term reliability is best obtained with consistently cool environments.

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2.4 Front Panel
Figure 2 miniCMTS200a Front Panel
The front panel has a number of LED’s on it. Note the button on the left has no function assigned to it.
2.5 Rear Panel
Figure 3 miniCMTS200a Rear Panel
2.5.1 Ground
Securely connect the “Grounding Port” to a protective earth grounding accordance with the local legal and safety
regulations.
2.5.2 Upstream RF connection
The F-type connector labeled U/S is for the upstream signals or the return path, this is where the cable with the
signals from the cable modem is connected.
2.5.3 Downstream RF connection
The F-Type connector labeled D/S is the downstream connector, this contains the QAM channels generated by the
miniCMTS.
2.5.4 Management Ethernet
This can be configured to be a separate management Ethernet port, however by default this is connected to the
Data Ethernet port via a switch

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2.5.5 Data Ethernet
This is the data port used to pass Ethernet data to cable modems.
2.5.6 SFP
This can be used to add fiber signals to the miniCMTS.
2.5.7 Console
The console port is a serial port used to communicate with the miniCMTS.
2.5.8 Power & Power Switch
Make sure the switch is in the off position before plugging the power into the unit, the unit supports 110/220V.
2.6 Overview of miniCMTS
The diagram below shows the blocks within the miniCMTS.
Figure 4 miniCMTS block diagram
The miniCMTS takes Ethernet packets from either one of the Ethernet ports (Eth0 or Eth1) or from the SFP port, it
converts these Ethernet packets to DOCSIS packets and put them out of the D/S F-Type connector in QAM
channels. The cable modem then looks at these signals and converts them back to Ethernet. The modem then
transmits signals to the miniCMTS and the miniCMTS receives these on the U/S connector. It converts these
signals back to Ethernet and put them out of one of the Ethernet ports or as fiber on the SFP port.
There is much more going on in a DOCSIS network that the above simplified explanation, as there are many MAC
management messages being sent between the miniCMTS and the modems to help control and configure the
network.

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2.7 RF Configuration
The miniCMTS200a can be configured in many different ways, below is a simple configuration to allow the
miniCMTS200a to be in a network with other broadcast TV channels.
Figure 5 Simple RF network
The RF goes to the cable TV network at the bottom of the picture, and comprises of both upstream (A) and
downstream (B) DOCSIS signals.
Notice the DOCSIS D/S signals are being combined with other cable TV signals to be place on the network. This
allows the power settings of all the QAM channels to be configured by adding attenuation to each products feed.
By measuring the power at ‘C’ they can be easily leveled
The upstream should be split using a diplexer with the appropriate RF frequency range (depending on the network)
Attenuation can then be applied to leg ‘A’ to adjust the signal strength so it will reach the miniCMTS200a at the
correct power.
This is a simple example of how to connect the miniCMTS200a, more complex setups are possible
Output Power: 45dB
Receive power: 6dB, depending on the modulation profile and the channel bandwidth the cable modems have a
power range they can transmit in.

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3 Basic Setup Guide
3.1.1 Login & Language
The default miniCMTS IP address is 10.7.1.77, netmask 255.255.0.0 and a gateway IP address of 10.7.1.1
An emergency (Backdoor) IP is available: 192.168.2.200/24 if you change the IP address and forget it.
This IP address is a fixed static address and always untagged.
In the event you lose IP connectivity to the miniCMTS, access to the miniCMTS Web GUI can be made via
this address from a local subnet 192.168.2.0/24.
Using a browser, type in the IP address of the miniCMTS you should see the login page:
Figure 6 Login Page
During the initial login into the miniCMTS web interface, select the required language from the drop-down menu.
English or Chinese are supported. The default username and password is case sensitive:
Username: admin
Password: admin

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3.1.2 Start Page
The start page is the main page where you can control the miniCMTS
Figure 7 Start Page
1. Navigation bar (Guides) on the left: This may be hidden and un-hidden using the << button. This
provides a tree structure of the available tabs to be displayed in the main area.
2. Main Tab Area (System Overview): The main tab area in the center of the page is where the tabs are
loaded when the menu options from the Navigation bar are selected.
3. Middle Bottom (Net Statistics): RF value distribution bar graphs, by clicking on the displayed values a
list of cable modems in each bucket can be opened
4. Right Top (Device Tools) : Advanced Feature icons
5. Right Middle (Version and Settings): Main operational information
6. Right Bottom (Cable Modem Info): Main Cable Modem statistics
7. Left Bottom Logout and Change Language

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3.1.3 Network Setup–Management IP and VLAN
The first step to configuring the miniCMTS200a is to set the IP address, this is done by clicking on the Network
Settings -> Manage IP. The “Manage IP” tab is displayed in the main Tab area.
3.1.3.1 Field names
Configuration Mode –choose Static IP or DHCP
IP Address, Subnet Mask, Default Gateway –required to be set in case of choosing “Static IP”
Management VLAN –set for dot1.q tagging of CMTS IP management traffic
Management VLAN Fixed –set VLAN tag.
The configuration shown is a simple test configuration with no VLAN support.
Figure 8 Network Setup Page

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Channel Settings - Downstream Channels
The next step is to configure the downstream channels. By default the miniCMTS200a is configured for annex-A,
this means the channel widths will be 8MHz and will only work with annex-a configured modems. The below figure
shows the setup for an Annex B configuration.
Figure 9 Downstream Channel Page
3.1.3.2 Toolbar
Channel_Amount: This sets the number of downstream channels which are enabled
Configuration: in “Simple” mode only first downstream channel is configurable, with the remainder being set
automatically adjacent to the first downstream channel, in “Complex” mode each downstream can be configured
separately. Note: IPQAM channels should be configured in “Complex” mode.
Power Compensation–This is to configure the power tilt compensation. Downstream channels at higher frequencies
can be set to transmit at higher output levels relative to downstream channels at lower frequencies.
3.1.3.3 Table and Columns
Mode–set “docsis” for DOCSIS Downstream or “ipqam” for IPQAM channel
TS–displays Transport Stream name for Downstream channels set as “ipqam”
Frequency–set center frequency for Downstream channel

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Symbol Rate–This is automatically set based on the annex and the modulation rate
Modulation Mode–choose QAM64 or QAM256
Annex - “A” means EuroDOCSIS, “B” means DOCSIS
Interleave–in case of “Annex A”, Interleave is set automatically to “ignore”. Set desired value in case of
“Annex B”.
Inner Power–the power level configured for the internal DOCSIS chipset output
RF Power–indicates RF power level available on CMTS RF connector. This is lower than “Inner Power” due
to the internal RF combining and splitting.
3.1.4 RF Settings - Upstream Channels
The next step is to configure the upstream channels.
Figure 10 Upstream Channel Page
3.1.4.1 Toolbar
Channel_Amount –This sets the number of upstream channels which are enabled.
Configuration: in “Simple” mode only first upstream channel is configurable, with the remainder being set
automatically adjacent to the first downstream channel, in “Complex” mode each upstream can be configured
separately.

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3.1.4.2 Tables and columns
Enable/Disable: Each upstream channel can be enabled or disabled individually.
Frequency: set center frequency for upstream channel from available range. For EuroDOCSIS the
available frequency range is 5-65 MHz side-to-side. NOTE: Do not set the frequency above what the RF
network is capable of, if Analog TV channels are being transmitted on channel 2, the top frequency edge
should be 42MHz.
Channel Width: choose from 1.6MHz, 3.2MHz or 6.4MHz.
ModulationProfile: choose from predefined modulation profiles. Low noise profiles have a wider power
range for the cable modems to use and there are recommended for good networks.
D30Mode: this option is reserved for future releases, and must be set to DISABLED.
Channel type: This field is automatically set to match the chosen modulation profile.
Inner Power: the power level configured for the internal DOCSIS chipset input. The available power range
is related to the configured channel width and modulation profile.
RF power: with the miniCMTS200a model of miniCMTS, the RF power is set to the internal power setting
and is the target receive power at the upstream f-type connector.
3.1.5 Time Synchronization
The time is configured via the “Time Sync” icon under “Version & Settings” on the right side of miniCMTS Start
page. The TIME protocol (TCP port 37) is used for miniCMTS Time Synchronization and two servers are available
to be used for this.
3.1.5.1 Fields
Server IP 1: IP address of the external server
Server IP 2: IP address of the backup external server
Enable: Either on/off to enable or disable this feature
Time Zone: set to the appropriate time zone for you location.
Figure 11 Time Synchronization