Zte ZXA10 S300, Техническое руководство

Страница: 32 / 102

ZXA10 S300 (V1.1) Integrated Access Service Dispatching Unit Technical Manual
20 Confidential and Proprietary Information of ZTE CORPORATION
Communication link test: The NMS provides a command
similar to
PING command to test the packet loss rate
from the NMS to the ATM line card.
Starting/stopping the printing of the line card debugging
information.
Practicing VP protection.
Enabling/disabling the optical module.
„
Order wire processing module
The order wire module provides the voice connection
between two SDH NEs. According to the ITU-T
Recommendation, the E1 and E2 bytes in the RSOH and
MSOH are used to implement the communication between
any two NEs. At most E1 and E2 channels with 32 optical
directions can be processed.
„
Database management module
The data module in the NOWC board provides some basic
databases. Each database has a time postmark that will be
printed on the database during its modification by the SMN.
The NOWC board cannot modify the postmark of the
database. It can only check whether the postmarks of the
NOWC board and SMN are consistent to judge whether their
databases are consistent.
Software Module of Transmission
Convergence Board
During the initialization, the transmission convergence board
loads the database from the Flash to the memory, and
configures it to the corresponding modules and line cards. On
the other hand, the transmission convergence board obtains the
time postmark of the static configuration data through the
Ethernet interface. If the postmark of static configuration data of
the Flash of the transmission convergence board is different
from that of the NOWC board, the transmission convergence
board software will obtain the database with the inconsistent
time postmark from the NOWC board, write the database in the
Flash, and reconfigure it to each module and line card. The
module structure of the transmission convergence board
software is shown in Figure 10.