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Physical Layer Copper Cross-Connects

Table of Contents:
Definition and Overview
1. Cross-Point Technologies
2. Matrix Types
3. Application Architectures
4. Summary
Self-Test
Glossary
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Self-Test
1. The ___________ is used in making and breaking all connections.
a. motor
b. cross-point
c. matrix
d. Bill and Ted’s Excellent Adventure
2. Which of the following should be used with LANs, WANs, DSLs, T-1s, etc.?
a. solid-state analog ICs
b. latching relays
c. stepper motor
3. Which of the following should be used with higher-density cross-connects?
a. solid-state analog ICs
b. latching relays
c. stepper motor
4. Which of the following should be used with small switches such as MTAUs?
a. solid-state analog ICs
b. latching relays
c. stepper motor
5. Which of the following matrix types is the most basic any-to-any nonblocking matrix type?
a. crossbar matrix
b. three-stage matrix
c. multistage matrix
6. Which of the following matrix types are not practical for copper cross-connect applications?
a. crossbar matrix
b. three-stage matrix
c. multistage matrix
7. Which of the following matrix types offers the only realistic approach to implementing a large nonblocking any-to-any cross-connect using stepper motor cross-point technology?
a. crossbar matrix
b. three-stage matrix
c. multistage matrix
8. Which of the following physical layer cross-connect application architectures provides a greater number of access buses to any given port?
a. MTAU
b. exception switch
c. some-to-some cross-connect
d. any-to-any cross-connect
9. Which of the following physical layer cross-connect application architectures provides test access only?
a. MTAU
b. exception switch
c. some-to-some cross-connect
d. any-to-any cross-connect
10. Which of the following physical layer cross-connect application architectures is composed of several small any-to-any matrices that can switch to each other in a very limited fashion?
a. MTAU
b. exception switch
c. some-to-some cross-connect
d. any-to-any cross-connect
11. Which of the following physical layer cross-connect application architectures is the most flexible of the products listed?
a. MTAU
b. exception switch
c. some-to-some cross-connect
d. any-to-any cross-connect
Glossary >>

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