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A local digital loopback is a test that is performed to check the transmitter and receiver of a local modem, or being simpler, it's a test that sends a signal to a remote receiver and waits for the signal to be returned.
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∙ 16y ago
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it's a test that sends a signal to a remote receiver and waits for answer
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What are the basic roles of a range of interconnection devices and Describe?
• A CSU/DSU terminates a digital local loop.• A modem terminates a digital local loop.• A CSU/DSU terminates an analog local loop.• A modem terminates an analog local loop.• A router is commonly considered a DTE device.• A router is commonly considered a DCE device.
What is a digital local loop?
A local digital loopback is a test that is performed to check the transmitter and receiver of a local modem, or being simpler, it's a test that sends a signal to a remote receiver and waits for the signal to be returned.
Which device is used to establish the communications link between the customer equipment and the local loop for digital lines?
CSU and DSU
DSL stand for?
Digital subscriber line (DSL, originally digital subscriber loop) is a family of technologies that provide internet access by transmitting digital data over the wires of a local telephone network.
The loop back address also known as local host is?
127.0.0.1 in IPv4 or ::1 in IPv6
For digital lines which device is used to establish the communications link between the customer equipment and the local loop?
For digital lines the device that is used to establish the communications link between the customer equipment and the local loop is CSU/DSU. The call setup time of a circuit switched WAN implementation considered a drawback is data cannot be transferred until a circuit has been established.
What is dlc exchange in telephones?
its a digital loop carrier
Does the connection between your home and the end office local loop use an analog or digital signal?
It depends. It's true, the standard POTS (plain old telephone service) is delivered over an analog loop. However, you may have a service known as DSL, it is even in the name (Digital Subscriber Line) digital. It uses the *unheard* areas (25kHz+) of the line to carry digital signal. So a line can be both analog and digital! Also, DSL can be provided on what's called a "dry loop" which is using a pair of copper (typically what would carry POTS service, but isn't connected to the PSTN.) That being said, it can be Analog, Digital or both: Analog and Digital.
Which communications technique combines digital and analog technology to transmit data?
the digital carrier loop system
IP telephones are directly connected to the local loop?
IP telephones are not directly connected to the local loop. False! according to Network + Guide to Networks page 539
What are the difference between local loop back testing and remote loop back testing?
The only difference is the relative location of the device that is in loopback mode. Local loopback testing is when your device is set to send back everything it receives to the sender, aka loopback mode. Remote loopback testing is when your device orders a foreign device to enter loopback mode.
Which factors can influence the bit rates used on RADSL connections?
The condition of the local loop The service provider The length of the local loop
