During the service configuration between two adjacent sites (NE1 and NE2), if VC4:1 and VC12:l-3
are used on the NEl's line board connected to NE2, the same VC4 and VC12 timeslots must be used
on the NE2's line board connected to NE1.
A
After an optical fiber is connected according to the networking diagram, if a critical alarm is reported
on the optical port, the SRV indicator on the line board is red.
A
Which of the following overhead bytes needs to be processed at an electrical regeneration site?
C
Which of the following are different types of ESCs divided by implementation principles?
A, B
Which of the following operating systems support the installation of the U2000 client?
D
When a VLAN-based service type is configured, which of the following functions must be enabled on
the port?
C
Which of the following is the functional unit that provides the interfaces related to the orderwire
phone and serial data for the system?
B
The OSN 1500/2500/3500/7500 supports both DC and AC power inputs.
B
In the system control unit, which of the following databases do not lose data after a power failure?
A, B, D
The rate of STM-1 is () bit/s.
C