Term
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Definition
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Term
| Doubling the amount of amplifiers with identical CTB ratios degrades the total CTB by ____db and reducing the amplifier output by___db improves the CTB by____db. |
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Definition
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Term
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Definition
Video-Amplitude
Audio-Frequency
Color-Phase/Amplitude |
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Term
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Definition
| Green buffer tube, Blue Fiber |
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Term
Diplex filter midsplit occurs at ____MHz
High split occurs at _____ MHz |
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Definition
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Term
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Definition
| Ahigh speed line or series of connections that forms a major pathway withing a network |
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Term
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Definition
| Device used to combine the channels for entry onto the cable or fiber transmitter |
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Term
| In digital transmission signals that are constrained to have two possible states: |
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Definition
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Term
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Definition
One's Complement (1s to 0s and 0s to 1s)
Two's complement (one's complement then add a "1" to it) |
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Term
| Time Division Multiple Access (TDMA) |
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Definition
A digital transmission technology (Slplits frequency to # of channels, assigned specific time slot, share single channel)
Modems communicate at different times |
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Term
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Definition
Star-A method of interconnecting computers or communications devices. Each remote network node is connected to a sngle central network node.
Cluster Star- Several star networks linked together.
Bus-Workstations connected to the network thru a common path or bus.
Ring- Node,hubs,or headends connected with fiber(Redundancy or increase of services) |
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Term
|
Definition
Simple Network Management Protocol (SNMP)
Network Operations Center (NOC)
Media Access Control (MAC)
10-100 Base T
Ethernet
Internet Protocol (IP) |
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Term
|
Definition
Time Slots
Contention Slots
Modem Data
Transmit Levels |
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Term
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Definition
DHCP ( Dynamic Host Configuration Protocol) Set up Mac and IP addresses
TOD (Time Of Day) Sets Common Clock
TFTP (Trivial File Transfer Protocol)-Config file
PROXY- Store commonly Used Data. |
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Term
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Definition
| Network Access Point - The point of access into the internet. |
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Term
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Definition
| Light Amplification by Stimulated Emission of Radiation |
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Term
|
Definition
| American National Standards Institute. |
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Term
| Widening of pulses, causes bit errors, limiting factor in MMF(Bandwidth) |
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Definition
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|
Term
Most stretching exercises are done in repetitons of
5 and hold for 10 seconds
True/False? |
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Definition
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Term
| Strand that connects the pole line hardware to the anchor |
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Definition
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Term
| What kind of guys are used at the end of pole lines |
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Definition
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Term
| It connects the pole line hardware |
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Definition
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Term
| General name for the guy wire and associated hardware on all guys. |
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Definition
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Term
| Designed for use in soft soil where screw anchors are less effective. |
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Definition
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Term
| Torqued to the ground with a power anchor driver |
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Definition
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Term
| Are disigned to expand in holes bored in rock or concrete. |
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Definition
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Term
| Connects the anchor and the guy wire |
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Definition
| Anchor Rods (also guy rods) |
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Term
| It measures the cable tension |
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Definition
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|
Term
| Strand Installation Methods |
|
Definition
Stationary reel method
Moving reel method |
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Term
| Most hazardous task in cable plant construction |
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Definition
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Term
| Place this device at pole hardware locations to prevent dangerous strand sag. |
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Definition
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|
Term
| _____should be placed on each cable to ensure that the maximum allowable tension for that cable is not exceeded. |
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Definition
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|
Term
| Underground Construction Methods |
|
Definition
Trenching
Vibratory Plowing
Rip and Plow
Conventional Boring
Directional boring |
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Term
|
Definition
|
|
Term
| In Wavelengths what are the highest Frequencies |
|
Definition
Gamma rays
X rays
Ultraviolet light |
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Term
| Wavelengths lowest frequencies |
|
Definition
Infra-red radiation
Microwave
radio Waves |
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Term
|
Definition
| Base 10 numbering system. |
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Term
| Gives fiber useful properties when lased. |
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Definition
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Term
| A______can alter the the audio frequency. |
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Definition
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Term
|
Definition
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|
Term
It's ok to have a snak while splicing fiber
True/False? |
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Definition
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|
Term
| Specifications standards approved by the FCC in 1953 for commercial analog color TV broadcasting |
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Definition
| National television standards committee(NTSC) |
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Term
| Above "sound" frequencies but below "light" |
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Definition
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|
Term
| Above "sound" frequencies but below "light" |
|
Definition
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|
Term
| The smallest unit of computerized data. Bits are defined as single characters or 0 or 1. Bandwidth is usually measured in bits-per-second. |
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Definition
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|
Term
Regenerated rather then amplified
Less subject to electrical interference, distortion and noise
Broken apart and reassembled, allowing easier switching. |
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Definition
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|
Term
No conversion is necessarey for human recongnition
Economical over short distances |
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Definition
|
|
Term
| How many amplitude changes are there in QPSK? |
|
Definition
| None!! There are 4 possible phase states and the magnitude is constant.(10Mb/s in 6 Mhz) |
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Term
| 2 Amplitude changes, 4 bits per symbol |
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Definition
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Term
|
Definition
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|
Term
| 4 Amplitude changes 6 bits per symbol |
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Definition
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|
Term
| 8 Amplitude changes 8 bits per symbol |
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Definition
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|
Term
| Swich or switches connecting multiple networks |
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Definition
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|
Term
| Generates a light source and is used in optical fiber Communications |
|
Definition
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|
Term
| 3 Chemicals that can be inhaled or absorbed through the skin. |
|
Definition
Isopropyl alcohol
Acetone Degrasers
Sealing Compounds |
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Term
| Visible light is between____nm and ____nm |
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Definition
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|
Term
| 4 reasons for fiber failure |
|
Definition
Patch pannel
System
Installation
Construction |
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|
Term
APC is the most commonly use fiber connector
True/False? |
|
Definition
| False (The SC connector is the most commonly use) |
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|
Term
OTDR's measure fiber length, not cable sheath length.
The difference is called______ |
|
Definition
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|
Term
| Reducing node size (segment) allows for_____is like adding_____ |
|
Definition
| Reuse of Spectrum, Bandwidth |
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Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| The 4 phase states of QPSK and QAM |
|
Definition
| 0/360, 90, 180, 270 (degrees) |
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Term
|
Definition
| Electronic Industry Association |
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|
Term
(FCC)
Carrier under test _________to measure CTB |
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Definition
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|
Term
| Low frequency disturbance |
|
Definition
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|
Term
| CLI is performed- How often) |
|
Definition
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|
Term
| The spectrum Analyzer displays information in the _____and______ domain or Amplitude vs Frequency. |
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Definition
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|
Term
| 2 annual methods to get CLI measurements |
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Definition
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Term
|
Definition
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Term
|
Definition
|
|
Term
|
Definition
|
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Term
|
Definition
at subs terminal= 0 db
100' drop (30 meters)= 3 db |
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Term
| (Max) Visual signal level |
|
Definition
Don't overload sub's terminal
(Comcast is 20 dbmv) |
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Term
| Visual signal change (6 months) |
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Definition
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|
Term
| Adjacent signal change (24hrs) |
|
Definition
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|
Term
| Any other visual signal in Bw |
|
Definition
10 db to 300 Mhz
+/- 1db per 100 Mhz |
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Term
|
Definition
| +/- 2 db or 4 db peak to valley |
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|
Term
| Hum (low freq. disturbance) |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| 18 db (from any 2 port dc/tap to subs terminal) |
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Term
|
Definition
|
|
Term
|
Definition
Chrominance to Luminance
Differential Gain
Differential phase
In the Headend(Once every 3 years) |
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|
Term
| Pop test are conducted_____at intervals not to exceed_____ |
|
Definition
|
|
Term
| What months must the 24 hr. test be done? |
|
Definition
| Jenuary/February and July/Auguts |
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|
Term
| The # of test points is determined by? |
|
Definition
|
|
Term
| 99.999% How much down time? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| 60,000 customer- number of test points? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| Fall protection is required at___? |
|
Definition
|
|
Term
|
Definition
|
|
Term
| A 24 hr test is performed every__to___hrs, twice a year |
|
Definition
|
|
Term
| The minimun visual signal level across an internal impedance |
|
Definition
|
|
Term
Use at least >99% Isopropyl alcohol
True/False? |
|
Definition
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|
Term
| Minimum telephone service to assure a contact in case of an emergency. |
|
Definition
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|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| How do you test new install fiber? |
|
Definition
| with an OTDR and do it bidirectional |
|
|
Term
|
Definition
| Best to use. (8-12 degrees) |
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Term
|
Definition
| optical cable entry facility |
|
|
Term
|
Definition
Test instruments(make, model,calibration)
Test procedures
Technicinan's qualifications
System channel lineup
Test data
Discrepency statements. |
|
|
Term
| Proof of performance (POP) test. Explain |
|
Definition
| To ensure that cable system's forward signals meet FCC standards. |
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