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.
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.
Which of the following overhead bytes needs to be processed at an electrical regeneration site?
Which of the following are different types of ESCs divided by implementation principles?
Which of the following operating systems support the installation of the U2000 client?
When a VLAN-based service type is configured, which of the following functions must be enabled on
Which of the following is the functional unit that provides the interfaces related to the orderwire
phone and serial data for the system?
The OSN 1500/2500/3500/7500 supports both DC and AC power inputs.
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.