User Manual
Modular Multi-service Integrated Optical Transmission Multiplexer
3
slots. According to the networking requirements of different users, various
kinds of interface modules can be employed to accommodate to the
requirements of different application environments. The equipment also
provides four lines of .10M/100M self-negotiating Ethernet interfaces to
further satisfy the different user requirement.
1+1 Optical Redundancy Backup
: Protection of dual optical interface
available to ensure that business will not be interrupted when one pair
of optical fibers is confronted with failure.
Flexible Configuration
: 4/5/6/7/8E1 optical multiplexers and
multi-service interfaces are derivable from main system board and
different functional modules, to meet different user requirements and
customizations.
Various Functional Modules
: User interface modules (E1, FE1, V.35,
FXO/FXS, and RS232/RS485, etc.), order wire module, network
management module, RS232 data channel module, alarm output
terminal module, and switch quantity channel module etc. available.
§2.2 Operating Principle
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adopts plug-in board structure and can be functionally divided into five
general parts, including:
A. Mainboard;
B. Optical interface;
C. Ethernet interface unit;
D. Secondary power supply;
E. Interface unit of other functions.
A. The mainboard is mandatory, which provides a platform for various
interface boards;
B. Either single optical interface or 1+1 redundancy optical interface
can be selected as required;
C. Despite the four lines of Ethernet interfaces, it also provides
network management and one line of user channel RS232, which can emit
overhead alarm signals;
