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General| Brand | COBHAM |
|---|---|
| Model | OMU I |
| Category | Network Hardware |
| Language | English |
Headquarters, commercial, support, and website information.
Describes manual content and intended users.
General safety precautions during installation and operation.
Procedures for unit failure, component replacement, and shipping.
Warnings for electrical shock, ESD, laser, and personnel safety.
Key features and available models of the OMU.
Basic connection diagram for a single OMU.
Linking multiple OMUs and expanding capacity.
Modules for signal conversion and distribution.
Cards for multi-sector, management, alarms, and modem.
Modules for modem antenna, communication, and power.
Power, ground, and RF input connections on the rear panel.
Procedures for unpacking, racking, and grounding the OMU.
Setting up RF and fibre optic links, including cleaning.
Connecting multiple OMUs, modems, alarms, and relays.
Supplying power and checking OMU status via LEDs.
Initiating local communication via RMC.
Setting OMU name, fiber loss, and system balancing.
Defining names, polarity, and usage of external alarms.
Using relay outputs and integrating with the Element Manager.
Installing repeaters and adding them as nodes in the OMU system.
Adjusting signal levels for downlink and uplink paths.
Compensating for optical loss in fibre paths.
Configuring modem communication via wireless or PSTN.
Setting up TCP/IP and Ethernet communication.
Accessing modem directly and tracing initialization.
Resolving issues with signal strength, connection, and modem types.
Understanding module status via LEDs on WDM and Control modules.
Understanding the LED behavior for GSM modems.
Overview of system maintenance, checks, and battery replacement.
Tools and procedures for dry and wet cleaning of fibre optics.
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