CT3 edited Flashcards
Aspect ratio of HDTV
16:9
Preferred method of coax cable routing
Home Run
What is CRT?
cathode ray tube
What does REN stand for?
Ring equivalency number
DOCSIS
Data Over Cable Services Interface Specification
What ensures interoperability of cable modems from various manufacturers?
DOCSIS
What does MoCA stand for?
Multimedia over Coax Alliance
Name four COMCAST business services
TV
Phone
Internet
Teleworker
What is the delay between transmission and arrival of a packet?
latency
What is it called when packets are received in the wrong order?
jitter
In general, business customers sign a __ to __ year contract.
2 to 5
What does the term POTS mean?
Plain Old Telephone System
What is the name of the dial tone a customer will hear when they have voicemail?
stutter
what does CMTS stand for?
Cable Modem Termination System
What does EDTV stand for?
Enhanced Definition TV
What is the resolution of EDTV?
480p
What does eMTA stand for?
embedded mutimedia terminal adapter
All lights flashing on an eMTA indicate what type of problem?
Foreign Voltage
What does VOIP stand for?
Voice Over Internet Protocol
Internet phone services transmit calls over a ______ network.
Public
What connection type provides both audio and video?
HDMI
What is DHCP?
Dynamic Host Configuration Protocol
What is QAM?
Quadrature Amplitude Modulation
List 2 types of call forwarding.
Selective
Variable
What is the 4 step troubleshooting process?
Identify
Isolate
Repair
Verify
5 factors of attenuation
Diameter of center conductor Dielectric Frequency Temperature Length of cable
Passage of outside signal into the cable is known as what?
Ingress
Signal leaking out of the system is known as what?
Egress
What are the three main components of a home theater system?
Audio
Video
Environment
List the 4 main types of displays
Direct view
Rear Projection
Front projection
Flat Panel
Latent or out of sync audio is known as?
Lip sync
MPEG identifies and removes what type of information between successive frames of the picture?
Redundant / Static
Separating successive frames into two types of video information is also known as what?
compression
What is a rugged, inexpensive to repair bandwidth versatile transmission medium?
Coaxial cable
A home run system is also known as what?
Star topology
What does DLNA stand for?
Digital Living Network Alliance
What are the 3 troubleshooting areas in CDV?
Before eMTA
At eMTA
After eMTA
What numbers do you need to dial in order to place an international call?
011 + country code
DHCP
Dynamic Host Configuration Protocol
What is the measure of voice, data and or video quality provided to a customer called?
Quality of Service (QoS)
List 2 safety precautions to take before working on phone lines.
Disconnect ILEC
Disconnect eMTA
When an eMTA is upgrading firmware what lights are flashing?
U/S and D/S
If the power light is flashing on an eMTA it indicates what?
AC power failure
ILEC
Incumbent Local Exchange Carrier
What defines where COMCAST may physically disconnect a customer from the ILEC network?
Interconnection Agreement
Businesses can add what services a la carte?
HD
Music Choice
Multi Latino
Sports Packages
What is an internet product for companies that have a mobile workforce?
Teleworker
How many email addresses are available to a teleworker customer?
7
How would a teleworker customer add or disconnect accounts?
Teleworker order center
What DOCSIS standard brought about channel bonding and IPv6?
DOCSIS 3.0
Connect RF to power in order to prevent what?
Ranging
The number one cause of ingress and egress occurs where in the system?
Drop system
The number 1 cause of ingress and egress?
Poorly installed connectors
CPE
Customer Premise Equipment
What audio format has 4 channels: Left, Right, Center, Surrounds
Dolby Pro Logic
3 types of audio formats with 5.1 channels.
DTS Neo:6
Dolby Digital
DTS
What essential supplies are needed for an Xfinity Internet installation?
Modem, cable installation materials (coaxial cable and splitters), welcome kits, ethernet cables
What are the installation options for Xfinity Internet?
Self installation and professional installation
What should the work order contain prior to installation?
Customer’s name and address, account number, current comcast services, information specific to the order, modem information (including correct rate codes for modem installation), comcast.net username
What essential supplies are needed for an Xfinity Internet installation?
Modem, cable installation materials (coaxial cable and splitters), welcome kits, ethernet cables
What is a bit?
a single character of data
What is a Byte (B)?
8 bits, a larger amount of data but still not very large.
What is a Kilobit (Kb)?
Roughly 1000 bits. Many Internet applications measure speed in kilobits
What is a Gigabyte (GB)?
Roughly one thousand megabytes. Gigabytes are common when talking about hard drive storage.
What is a Megabit (Mb)?
Roughly one million bits. This is smaller than a megabyte, but is a common measurement for network bandwidth.
Projects light from microscopic mirrors onto big, widescreen, rear-projection TVs (or micro-displays)
Digital Light Processing(DLP)
What is the Pre-installation internet requirement to installing a CT3 cablecard in a PC?
An Internet connection MUST BE working prior to installation.
Boosts low level signals from the components to the speakers.
Amplifier
Images result when electrically charged gases illuminate colored phosphors
Plasma
What type of cable fulfills the video requirement for an internal or external xfinity TV user?
A/B USB cable.
What is a Gigabyte (GB)?
Roughly one thousand megabytes. Gigabytes are common when talking about hard drive storage.
Includes audio and video input/output ports; Audio input to AV receivers internal preamplifier; Audio output fed to system speakers; Video for selected device is fed from the receivers output jacks to connected video display
Audio/Video Receiver
What is the requirement PRIOR to installing a CT3 cablecard in a PC?
An Internet connection MUST BE working prior to installation.
Toslink or EIA-J are types of what?
Optical Digital Audio connectors
Uses an RCA connector to carry Digital Audio
Coaxial Digital connection
Uses an RCA connector to Analog Audio
Stereo Connection
Creates a picture by shooting an electronic beam at a phosphor-coated glass screen
Cathode Ray Tube (CRT)
Creates images by passing light through a layer of liquid crystal sandwiched between two panes of polarized glass.
Liquid Crystal Display(LCD)
Allows customers to link home TVs from any PC or hand-held device
Slingbox
Uses LED backlighting instead of the cold cathode fluorescents CCFL
LED-backlit LCD
A general term for non-projection types of TVs, which include conventional tube TVs and flat-panel plasma and LCD TVs
Direct View TV
Changes the size of an image to fit the pixel size of a device without changing the shape
Scaler
Operates with beam of infrared light; components must be in line of sight with remote
Infrared Remote
Consisting of a separate projector (typically placed on a table or ceiling-mounted) and screen; Can display images up to 20 feet across, or larger
Front Projection
Ideal if there is little or no space for a TV or projector; Can be hung on the wall; Can be plasma or LCD
Flat Panel
What is the pre-installation video requirement for a CT3 cablecard?
A) An internal or external xfinity TV Tuner
Just launched by Comcast, these remotes talk to the STB via RF while using infrared to talk to the TV.
IR/RF Remote(XR2)
Large 24-pin connector in which audio is not provided
DVI
4-pin video only connector
S-Video
RCA wiring that uses Yellow Red and White connectors
Composite video
Improves picture quality; Makes routing and distribution easier; Allows images to be displayed in different ways
Signal Processor
Enables multiple video and audio signals to be selected and sent to one or more display devices
Switcher
What type of cable fulfills the video requirement for an internal or external xfinity TV user?
An A/B USB cable.
Operate components located throughout the household; Generates signals of given radio frequency
RF Remotes
Control all components; Can be programmed for individual components (uses 3 or 4 digit codes)
Universal Remotes
Perform operations on more than one component; can usually learn commands
Programmable Remotes
Control all components; Can be programmed for individual components (uses 3 or 4 digit codes)
Universal Remotes
Perform operations on more than one component; can usually learn commands
Programmable Remotes
Just launched by Comcast,these remotes talk to the STB via RF while using infrared to talk to the TV.
IR/RF Remote(XR2)
How far should seating be away from TV for Optimum viewing in a Home Theater setup?
Seating should be two times the diagonal wide-screen TV away from TV (example: seating should be 84” away from a 42” TV screen)
Name 4 of the 6 equipment requirements for an external digital cable tuner setup.
1) Windows Vista Home Premium or Ultimate Edition2) Vista digital cable compatible PC3) DVD-ROM Drive4) Audio Output Capabilities5) Internet Access6) Internal or External Xfinity TV Tuner with remote
Most trouble calls, including repeat trouble calls, in the CATV industry are found where?
Between the tap port and the customer’s television set.
The majority of troubles calls are due to what?
Poor connector installation or device attachments.
What types of problems can poorly installed F-Connectors cause the customer?
Tiling "One Moment Please" message Ghosting Distorted picture (hum) Intermittent service
The Top 5 Types of Connector Problems
- Moisture damage
- Long/short center conductor
- Connector not tightened to port
- Braid removed or too short/long
- Improper connector for cable type
Why is it improper to cut a center conductor a second time to (trim it) to fit a fitting?
A jagged center conductor can scratch the contacts inside the F-port creating reflections.
What is the web address for most Comcast modems and eMTAs
http://192.168.100.1
what are four benefits to an employer who uses teleworker?
Single contract, unified billing, online ordering and management, business class customer support
what are four benefits of teleworker for employees?
Multiple connections, comcast.net email, after hours use, Portal services
how any levels of teleworkers are there?
2
what are the names of of the two levels of teleworker?
Standard and enhanced
what is the major difference between the two teleworker service levels?
speed
how does a technician know the a teleworker customer from a CHSI customer?
the work order
what paper work does a technician give a teleworker at the end of the install?
None
RF:
RF or Radio Frequency refers to an electromagnetic wave that generally falls in the frequency range of 3 kHz to 300 GHz.
MHz (Megahertz):
Equal to one million Hz. Video signal bandwidth is typically expressed in megahertz
A subunit of a larger unit called the bel:
decibel
Is a measure of the ability of a circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output
Gain
A network architecture developed by the cable industry, which typically uses fiber optic cables to bring signals to selected areas of the system called nodes, which are usually based on the number of subscribers to be served
Hybrid Fiber Coax (HFC)
An advantage of fiber is:
It has bandwidth many times greater than coaxial cable and can travel great distances without amplification
The width of a band of frequencies
Bandwidth
Passage of an outside signal into the cable; can result in noise and disruption of the desired signal
Ingress
A standard for home entertainment networking in which existing subscriber drop coaxial cabling and components are used to interconnect set-top boxes
MoCA
Allows up to 16 devices on the network, with a maximum of 300 feet of cable
MoCA 1.1
To ensure that MoCA energy remains within the home, the CommTech 3 must install a __________ in the drop
POE filter
Three main features of OWE:
First Time User Experience (FTUE)
XFINITY Profile
Progress Bar
The residential services are:
XFINITY TV
XFINITY Voice
XFINITY Internet
XFINITY Home
Xfinity apps
XFINITY My Account App XFINITY TV App XFINITY TV Go App XFINITY TV Remote App XFINITY TV X1 Remote App XFINITY Connect App XFINITY Home App XFINITY Player App XFINITY Remote App XFINITY Wi-Fi App XFINITY Share App XFINITY on Campus App XFINITY On Demand Purchases App
Suite of applications that enable customers to enjoy the services they have from Comcast on as many platforms as possible
Converged Products:
Allows customers to make outgoing calls via a virtual telephone number using a mobile device without using wireless minutes
Voice 2go
There are three significant considerations in a Home Theater application
Audio quality
Audio formats
Audio equipment
Latent or out-of-sync audio
Lip-Sync
The different types of audio formats are:
Mono
Stereo
Surround Sound
Key elements of a surround sound system are:
Pre-amplifier Power Amplifier Surround Sound Processor Audio/Video Receiver
Tiny dots that convey light and combine to form a video picture
Pixel
Short for “picture element.”
Pixel
The number of scans from the left side of the display to the right and back that occur in one second
Horizontal Scan Rate
The number of times per second that the scan sequence is repeated from the top of the display
Vertical Scan Rate
Visible fading of luminance between scan cycles on video displays
Flicker
The method of displaying television pictures in which the picture is displayed in two halves (one of odd-numbered lines, one of even-numbered lines), that are interlaced together to create the full picture
Interlaced scanning
Standard television pictures are composed of ___ horizontal lines that scan across the screen in less than the blink of an eye
480
The ____ format utilizes two sequential fields of 540 lines each
1080i
Interlacing produces __ fields or __ complete frames every second
6030
Television pictures are displayed in a single pass, instead of the two fields used with interlaced scanning
progressive scanning
The common progressive scan standards that you will see are:
480p, 720p, and 1080p
Identifies and removes redundant information between successive frames of the picture
MPEG compression
Separating successive frames into two types of video information—that which remains unchanged from frame to frame, and that which is updated frame to frame
Digital Compression
The most important part of a Home Theater system is the?
video display
The three main steps involved in site preparation when installing new equipment in a customers home are:
Determining customer expectations
Analyzing the current setup
Planning the signal flow
A common problem with Home Theater systems is:
no picture or poor picture
The most common causes of picture failure in a Home Theater system are:
Wrong display settings.Lack of power to various components.Cable routing malfunction, loose or disconnected cables
The transfer of energy from one device to another is most successful when both devices are of the same
Impedance
Three components of an electrical circuit:
Voltage
Current
Resistance
German physicist, investigated galvanic currents and established the mathematical relationship between voltage, current, and resistance
Georg Simon Ohm
A flow of IP data supplied to a processor at a rate fast enough forreal-time decoding
Streaming
Enables media files—movies, TV shows, music, and so on—to be played on TV, from various sources like computers, hard drives, the Internet, and media servers
Home Media Streaming
An all-in-one device that connects the customer’s Internet, phone, and home networking, enabling them to share files with computers and other electronic products that are connected to their home network
Wireless Gateway
A term used in IP telephony for methodologies and transmission techniques that manage the delivery of voice, using IP packets
Voice over Internet Protocol (VoIP)
What are 3 ways to access voicemail?
- Dial *99
- Dial home telephone number
- Online, through XFINITY Connect
A customer can access Enhanced Voicemail while away from home bypressing
, once the greeting begins
Customers can easily check their email, listen to voicemail, and manage their address book and calendar from any computer with an internet connection.
XFINITY Connect
XFINITY Connect allows customers to:
Review call history, Easily manage everything related to their account without calling Customer Service
How customers can access XFINITY Connect:
If a customer has XFINITY Internet and XFINITY Voice, the login is their primary email username and password.If a customer is only subscribing to XFINITY Voice, the login will be the XFINITY Voice 10-digit home telephone number and voicemail password.For a new voicemail setup, simply dial *99, the system will prompt you to create a new passcode. Note, the last four digits of the telephone number is NO LONGER the default passcode.
website to access Xfinity Connect
https://login.comcast.net/login
Phone service that transmits telephone calls over a public network, such as the Internet
IP Telephony
A term used in IP telephony for methodologies and transmission techniques that manage the delivery of voice, using IP packets
VoIP
Technology used to transmit voice and related calls over a data network
IP Phone/IP Voice
A device that allows the telephone company to route and connect customers to one another
Telephone Switch
Worldwide network of public circuit-switches used by traditional, local, and long-distance companies
Public Switched Telephone Network (PSTN)
Central Office (CO) server that routes calls to other IP-based phones or through the PSTN
Soft switch (Software Switch, VoIP Switch, or CMS)
A telephone line dedicated to a specific subscriber. This line sends signals through the system, based on a subscriber making and receiving calls.
Subscriber Line
A site where telecommunications companies (such as cellular and long-distance providers) physically interconnect their systems with other networks (such as local telephone companies or cable companies)
Point of Presence (POP)
A condition caused when packets are not received in the correct order, or when they take too long to arrive at their destination.
Jitter
Delay associated with inconsistencies, or impairments, in the data transport stream.
Latency
Voice packets are given priority over other types of data traveling within the Comcast network. This managed delivery ensures high-quality voice packet interpretation.
Dynamic Quality of Service (DQoS)
The only time a call from an XFINITY Voice customer may use the public Internet is when the receiving party is using an ______________________.
internet-based service
In legacy telephone networks, talk battery and ring voltage come from the?
Central Office
Always disconnect the inside wire (IW) from the_________ before working on the wiring.
NID or eMTA
Also known as Touch-Tone, this form of audio signaling was introduced by Western Electric in 1963
DTMF: Dual-tone multi-frequency signaling
In earlier pulse dialing systems, noise generated in the copper pairs could be interpreted as a pulse by the switch rendering:
Wrong telephone numbers
An eMTA features up to ____ hours talk time and up to _____ hours of standby battery
five
seven
When utilizing an in-house amplifier, the eMTA must be connected to a:
passive port
If the customer has opted for a backup battery, it is recommended that they also have a ___________ on hand, in the event of a power outage.
wired phone
eMTA Location Guidelines
Place near customer’s primary computer, if possible.
Do not place eMTA in an attic or unheated basement space.Do not place the eMTA too close to a furnace or in any other area that is environmentally unsuitable for the unit. Keep away from wireless devices, and access by children or pets.Ensure adequate ventilation
Do not place an in-home amplifier between the tap and the eMTA unless the amplifier has an approved:
eMTA port
eMTA battery provides _____________ hours of standby time in case of power outage
five to seven, 6-8 hours.
Backup batteries will not be available for purchase from Comcast by customers subscribing to:
“Unlimited Select.”
All of a sudden, the eMTA Link lamp or LED goes off. What could be the reason?
Ethernet cable disconnected, or computer has been powereddown. Possibly the router has lost power
Name two ways to discourage the customer from unplugging the eMTA from a dual jack when they are trying to unplug their phone.
Wire in such a manner that the eMTA is plugged into the bottom jack to minimize accidental disconnection. Use a red “Do not remove” tag to block the unused port
Once the eMTA is hooked up, you can access a GUI to check signal levels by using:
192.168.100.1
The twists in Category 3,5 and 6 wire help prevent __________ and cancel out noise that might be induced onto the wire from adjacent pairs or exposed wire.
cross talk
When a fax machine is used with XFINITY Voice, the fax machine will:
Share the incoming phone line
In a home-run wiring configuration, also known as ____, each outlet is fed directly from a central location
star
Only _________ alarm systems should be connected to the phone service
monitored
Allows an alarm panel to control access to active phone pairs, and seize those pairs even if the customer is using the telephone
Line seizure
Be sure that the alarm system is in ________ before beginning work, to ensure that an alarm is not triggered
Test Mode
Some ILECs utilize “______________,” a service that keeps talk battery on the pairs even if the location no longer subscribes to their phone service
soft dial tone
Before the eMTA can be connected to the customer’s home wiring, the existing service must be disconnected at the?
NID
Unplugging the modular connector in the NID is a safety step. It prevents?
being hit by ring voltage
What is the preferred method of connecting the eMTA to the house wiring?
Disconnect the ILEC and connect the eMTA with a dedicated line to the NID
An _____ jack isolates the alarm panel from the eMTA in the telephone circuit.
RJ31X
In a phone installation with an alarm system, a _________ _____ _____ is always the first active device in the telephone circuit
monitored alarm panel
Rule of Three for XFINITY Voice:
- Confirm the customer’s new telephone number.
- Illustrate how to use voicemail, referencing the steps in the Welcome Kit.
- Talk about XFINITY Connect where customers can go online to check voicemail, see call history, or set options
There are three methods for activating XFINITY Voice services. They are (in order of preference):
- Via the workforce management application on the company-issued mobile device or laptop
- Via the Online Tech Activation Tool, using the customer’s computer
- Via the Interactive Voice Response (IVR).
Often called Cable Modem MAC, is typically used when provisioning an installation for both XFINITY Voice and Internet
CMAC
Refers to the telephone only portion of the eMTA. It is typically used for provisioning XFINITY Voice when using the IVR
MTA-MAC
MAC address added to the customer’s account in CSG/ACSR markets
CMAC
Typically used for provisioning XFINITY Voice when using the IVR.
MTA-MAC
Used for provisioning via the mobile device in AMDOCS/Comtrac/Cable Data markets
The serial number
An eMTA or modem that has not been activated receives a ____________boot file which allows it to communicate with our network but not surf the Internet
walled garden
After activation the first test call:
verifies inbound calling, long distance, and calling features
After activation and placing the first test call, keep the first test call connected and prompt a second test call to validate:
call waiting and voicemail
If a password is required, to validate voice mail, use?
the last four digits of the telephone number
There are three categories that can help us determine where an XFINITY Voice problem may occur
RF or coax
Copper wiring or jacks
The eMTA
Keenness and depth of perception, discernment, or discrimination especially in practical matters
Acumen
The ability to make good judgments and quick decisions, typically in a particular domain
Business acumen
The Comcast Credo
“We will deliver a superior experience to our customers every day. Our products will be the best and we will offer the most customer-friendly and reliable service in the market.”
Two versions of Business TV:
Private View
Public View
Typically private/professional businesses where food and/or alcohol is not sold for immediate consumption/not the main source of revenue.
Private View
Includes, but is not limited to, locations where the bulk of the revenue is derived from the sale of food and/or alcohol
Public View
Some services available to Residential customers are excluded in Business Services. The excluded services are:
DVR
VOD
Impulse PPV (IPPV)
Premium channels
Business TV is not available to venues that:
Charge an admission or entry fee. (However, a monthly or yearly membership is not considered as admission fee. Thus, Business TV is made available to health clubs or special interest clubs.)
Service levels for Business TV Private View:
Business TV Basic
Business TV Information & Entertainment
Business TV Standard
Business TV Preferred
Business customers are required to sign a ______________________ in order to establish service.
service order agreement/contract
Service levels for Business TV Public View:
Basic Digital Basic Plus Digital Standard Digital Deluxe Sports & Entertainment Standard Sports & Entertainment Deluxe
There are three major music licensing organizations which provide the rights for businesses to play licensed recordings:
ASCA
PBM
ISESAC
Benefits of bundling
Flexible One service provider Efficient Cost effective Peace of mind
Most VoIP service providers use the _____________(Internet Phone) to carry phone traffic; Comcast does not.
public Internet
Business Voice is transported over _____________________________, giving customers the clarity they expect.
Comcast’s private, advanced broadband network
Business Voice Service Capabilities & Customer Support
Operator Assistance Directory Assistance Call Restrictions E911 Emergency Calls Do-Not-Call Registry Directory Listings
Features that are available only to Business customers:
Call Forward No Answer
Hunt Groups
Extension Dialing
A serviceability check consist of two components:
- Serviceability of the location
2. E911 serviceability
The demarcation point for Small Business Voice services is?
The RJ telephone connector on the back of the eMTA
When installing Business Voice, always use a?
dedicated eMTA
The Ethernet port should not be used for Internet service
Metro Ethernet (Metro-e) customers can select one of the three Classes of Service (CoS) that best meets their applications’ performance requirements:
- Basic
- Priority
- Premium
What is the speed range for Metro-e?
1Mbps–10Gbps
What website would you direct a customer to for anything business class related?
http://business.comcast.com/
Business Internet Customer Support a technician can be dispatched within ______, including on weekends and holidays
4 hours
Combines the functions of a cable modem and a router in a single device
IP gateway
It is the process of modifying IP address information in IPv4 headers
NAT
Some routers come with a ___________option which, when enabled, essentially disables the networking functionality and the gateway basically becomes a modem.
Bridge Mode
Managed Internet access, available to corporations that have a distributed, mobile workforce of at least 100 persons
Teleworker Internet
DOCSIS 1.0 issued
March 1997
DOCSIS 1.1 added full standardization and quality of service capabilities
April 1999
DOCSIS 2.0 released, to meet the demand for enhanced upstream transmission speeds
December 2001
DOCSIS 3.0 released; it supported enhanced upstream and downstream transmission speeds and Internet Protocol version 6 (IPv6).
August 2006
Aims to support capacities of at least 10Gbit/s downstream and 1Gbit/s upstream
DOCSIS 3.1
Technology that allows multiple cable boxes to utilize a single radio channel. Each box is assigned a code for its upstream bit stream
S-CDMA: Synchronous - Code Division Multiple Access
Load-sharing technique for logically combiningmultiple DOCSIS channels
Channel Bonding
Electromagnetic wave that generally falls in the frequency range of 3 kHz to 300 GHz
RF or Radio Frequency
A protocol for assigning dynamic IP addresses to devices on a network
Dynamic Host Configuration Protocol (DHCP)
The modem scans the downstream QAM channels, looking for an upstream channel descriptor. A __ occurs if the cable modem does not find one within a few seconds
T1
The modem waits for an opportunity to communicate with the CMTS. If it does not get an opportunity within about 12 seconds, a __ timeout occurs.
T2
The cable modem has sent a ranging request upstream to the CMTS for transmit and timing information. If the modem does not get a response within 200 milliseconds, a __ Timeout occurs. After 16 attempts, the modem will reboot to restart the registration process from the beginning.
T3
Once a cable modem is online, it continues to communicate with the CMTS. The modem watches for Keep Alive requests from the CMTS. If it does not receive one after 30 seconds, a __ timeout occurs.
T4
After __ T4s, the cable modem will reset
16
T3 and T4 timeouts can be a sign of an
upstream or downstream problem
A feature in Scout that shows the presence or absence of linear distortions in the RF portion of the return path
Scout Flux
Cable modems communicate with the CMTS every _________ to characterize network conditions
20 seconds
The adaptive equalizers are sent fresh commands for equalization every?
20 seconds
