Which of the following statements is false about pre-commissioning check?
A. Verify that the equipment is properly grounded.
B. An AUX board provides multiple RJ45 ports that receive same signals. Wrong port connections do not affect the equipment or boards.
C. On an AUX board, LAMP1 is the cabinet alarm indicator output port and LAMP2 is the cabinet alarm indicator cascading input port. Verify that the ports are connected correctly, to prevent short circuits.
D. Verify that the NMS is successfully installed.
If equipment power is configured with 1+1 protection you can replace the PIU board without cutting off the supply from the DC power distribution unit.
A. TRUE
B. FALSE
The cross-connections that fail to work on the network layer and exist only on isolated NEs are called unused services.
A. TRUE
B. FALSE
Which of the following are true about the relationship between ASON software, board software, NE software, and NMS software?
A. ASON software is independent from board software, NE software, and NMS software.
B. NE software runs on a system control board.
C. All boards run ASON software and board software.
D. An NM computer runs NMS software
PQ1 must work with an interface board. Which of the following is a 75-ohm interface board?
A. D75S
B. D12S
C. D12B
D. D34S
What kinds of service conversion are supported by an ASON network?
A. Conversion between traditional SNCP services and diamond services
B. Conversion between traditional services and gold services
C. Conversion between traditional services and silver services
D. Conversion between traditional services and copper services
E. Conversion between traditional services and iron services
F. Conversion between traditional services and tunnel services
What are the procedures of handling discrete services on the NMS?
A. Check the consistency between NMS data and NE data.
B. Check the consistency between the fiber connections created on the NE and physical fiber connections.
C. Search for protection subnets, and ensure that all protection subnets are searched out and properly configured.
D. After discrete services are searched out, the NMS analyzes the discrete services based on the displayed causes and solutions.
E. After discrete services are searched out, delete the discrete services on the NMS.
Which of the following are true about the relationship between pointer justification and bit errors?
A. Justification of a large number of pointers may cause bit errors,
B. A large number of bit errors may cause pointer justification.
C. Bit errors do not lead to pointer justification.
D. Pointer justification does not lead to bit errors.
Shared mesh restoration trails and preset restoration trails are reserved resources for certain services. They cannot be used by other services.
A. TRUE
B. FALSE
SDH equipment supports many protection types. Which of the following statements is false?
A. It is recommended that the working board be removed for a TPS test two minutes after TPS protection is configured, because it takes a period of time for the protocol to obtain the physical type of the processing board.
B. When 1+1 protection is configured for the power supply, each PIU board provides 50% of the required DC power. When one PIU board fails, the other also stops providing power.
C. The 1+1 protection switching between GSCC boards is non-revertive. Services can be switched back only by removing the working board or issuing a switching command on the U2000.
D. After you insert a GSCC board back, the working GSCC board needs to synchronize data to the newly inserted GSCC board. Wait 5 to 10 minutes until the synchronization is completed. Then restore board active/standby status.
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