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name parts of fiber
WHAT IS THE DIFFERENCE BETWEEN MULTI-MODE AND SINGLE MODE FIBER?
- MULTI - SHORT DISTANCE / LOWER BANDWIDTH
SINGLE - LONG DIS / UNLIMITED BANDWIDTH
NAME 4 WAVELENGTHS WHERE LOW LOSS TRANSMISSION WINDOWS OCCUR IN A FIBER CABLE.
- 850 NM - mm
- 1300 nm - mm laser optimized
1310 nm- mm
- 1550 nm- single mode
WHAT IS THE DIFFERENCE BETWEEN TIGHT AND LOOSE BUFFER CABLE?
- tight - light weight / easier to terminate /indoor
lose - res to temp / outdoors / hard to terminate
NAME 4 ADVANTAGES OF USING FIBER OPTICS OVER COPPER CABLES.
- low attenuation
immune to EMI & RFI
- difficult to tap
NAME TWO METHODS USED TO SPLICE FIBER CABLES.
fusion & mechanical
CORRECTLY LABEL THE TWO MOST COMMON CONNECTORS USED FOR TERMINATION OF FIBER.
NAME 3 FIBER OPTIC LIGHT SOURCES USED IN FIBER OPTICS.
- VCSEL (VERTICAL CAVITY SURFACE EMITTERS LASER)
WHAT DOES VCSEL STAND FOR?
VERTICAL CAVITY SURFACE EMITTERS LASER
EXPLAIN THE PROPER POWER UP AND POWER DOWN SEQUENCE FOR A PRO AUDIO SYSTEM.
- Amps on Last
- Amps off First
NAME THE TWO MODES USED WITH A DMM WHEN TESTING LOUDSPEAKERS
NAME 3 METHODS USED TO TEST A LOUDSPEAKER DRIVER.
- Sine wave sweep
NAME 3 BENEFITS OF USING FERRO FLUID.
- Heat dissipation
- Coil centering
- Mechanical Damping
NAME 3 TYPES OF MATERIAL USED TO MAKE COMPRESSION DRIVER DIAPHRAGMS.
NAME 2 BENEFITS OF ADOPTING A THOROUGH LABELING SCHEME FOR YOU AUDIO SYSTEM.
- Helps with quick set up
- Helps you identify bad components
NETWORKS ARE CLASSIFIED USING TWO PROPERTIES, NAME THEM.
NAME THE THREE COMMON NETWORK TOPOLOGIES
- THE RING (token ring a protocol)
- THE STAR
- THE BUS
WHAT WOULD THE NUMBER 137 LOOK LIKE IN BINARY?
- (128 64 32 16 8 4 2 1)
- 1 0 0 0 1 0 0 1
- 137-128 = 9-8= 1
WHAT IS THE BASE 10 NUMBER 137 IN HEXADECIMAL NOTATION?
- 16 base system
- 1 - 9 8 4 2 1 |
- a= 10 (128 64 32 16 | 8 4 2 1)
- b=11 1 0 0 0 |1 0 0 1
- c=12... = 8 - 1 = 9
WHAT IS THE DIFFERENCE BETWEEN BASEBAND AND BROADBAND TRANSMISSION?
- Baseband: sends binary values directly as pulses of voltage or current. Current loop, Voltage loop.
- Broadband: (Multichannel Baseband) is achieved multiplexing. transmission in an analog communication strategy in which multiple channels are used simultaneously.
- Yahmaha chapter19 for MIDI
WHAT IS THE DIFFERENCE BETWEEN SINGLE ENDED AND DIFFERENTIAL?
- Differential is balanced (Equal impedance compared to ground.) just for data communication.
- Single ended is unbalanced and only share one ground.
WHAT IS ASYNCHRONOUS TRANSMISSION?
a communications strategy that uses a start and stop bid to indicate the beginning and end of a transmission
WHAT IS SYNCHRONOUS TRANSMISSION?
A communication strategy that uses timing to control transmission.
WHAT IS ISOCHRONOUS TRANSMISSION?
- Means time sensitive. an isochrones
- transmission is one whose operation is dependent on constant time intervals
- isochronous ensures that there will always be predictable number of time intervals between any two transmissions whether number of time intervals between any two transmissions whether synchronous or asynchronous. very necessary for transmitting video or audio
WHAT IS COBRANET TECHNOLOGY?
-Cobranet is a combination of hardware, network protocol and firmware that allows us to send audio over Ethernet in real-time
HOW MANY CHANNELS OF DIGITAL AUDIO CAN A SYSTEM USING COBRANET CARRY ON A 100BASET NETWORK?
64 channels over 100 base T
WHAT DOES “10/100BASE T” TELL YOU ABOUT A NETWORK?
- signal type
- cable type (twisted pair)
WHAT IS THE JOB OF A “CONDUCTOR” IN A NETWORK USING COBRANET ?
WHAT IS DATA TERMINAL EQUIPMENT?
any device that produces or consumes data on a network.
GIVE TWO EXAMPLES OF DATA COMMUNICATION EQUIPMENT
WHAT IS A PROTOCOL?
- A protocol specifies a common set of rules and signals the devices on the network use to communicate.
- protocols can be used in combinations called stacks or suites
WHAT 3 THINGS DOES OSI ALLOW US TO DO CONCERNING PROTOCOLS?
- -provides a common way to analyze protocols
- -allows one to compare protocols
- -helps one trouble shoot network problems.
WHAT IS A MAC ADDRESS?
- a MAC address is a 6 bytes long often noted in hexadecimal
- cannot be changed, burned into hardware.
- no two are the same
- used to identify a node on a network.
WHAT ARE THE TWO WAYS AN IP ADDRESS CAN BE ASSIGNED TO A NODE ON A NETWORK
WHICH OSI LAYER HANDLES PORT ACCESS?
What layer of OSI does an IP address operate?