MEXICO INDEPENDIENTE
1.6 LA GLOBALIZACIÓN
Commissioning engineers can configure site commissioning data by using a hand-held tool on site when the following conditions are met:
l Commissioning engineers are capable of configuring radio link data on the OptiX RTN 620.
l Commissioning engineers are aware of the radio link data planning for the site.
l Commissioning engineers carry hand-held tools.
Table 3-2 Configuring site commissioning data by using a hand-held tool
Commissioning Item Remarks
Powering On the Equipment Required
Configuring Site Commissioning Data by Using a Hand-Held Tool
Connecting a Hand-held Tool to the IDU
Required
Configuring NE Attributes Required Configuring a Radio Link Required
Checking Alarms Required
Testing Connectivity of the Cables
Testing Connectivity of E1 Cables with a Hand-Held Tool
Required when E1 cables are used on the site
Testing Connectivity of the Ethernet Cables
Required when Ethernet cables are used on the site Testing Connectivity of
Fiber Jumpers
Required when optical fibers are used on the site
Aligning Antennasa Aligning Single-Polarized Antennas
Required when radio signals are transmitted by single-polarized antennas Aligning Dual-Polarized
Antennas
Required when radio signals are transmitted by dual-polarized antennas
NOTE
a: Before aligning antennas, you must power on the equipment and configure site commissioning data on both ends of the radio link.
3.1.2 System Commissioning Items
System commissioning involves the commissioning of the entire radio transmission network.
The purpose of system commissioning is to ensure that various services are transmitted normally and protection functions are implemented on the radio transmission network.
Table 3-3 System commissioning items
Commissioning Item Remarks
Configuring the Network-Wide Service Data
Required
Testing the E1 Service
Testing the E1 Services by Using a BER Tester
Required when the E1 service is available and a BER tester is available on site
Testing the E1 Service Through PRBS
Required when the E1 service is available and a BER tester is unavailable on site
Testing Ethernet Services
Testing Ethernet Services by Using the LB Function
Required when the NEs at both ends support the ETH-OAM function
Testing Ethernet Services by Using the Ping Function
Required when the NE at one end supports the ETH-OAM function
Testing Ethernet Services by Using Laptops
Required when neither NEs at both ends supports the ETH-OAM function
Testing AM Switching
Testing AM Switching by Using a BER Tester
Required when the AM function is enabled and a BER tester is available on site
Testing the AM Switching Without a BER Tester
Required when the AM function is enabled and no BER tester is available on site
Testing Protection Switching
Testing IF 1+1 Switching
Required when radio links are configured in 1+1 HSB/FD/SD mode
Testing N+1 Protection Switching
Required when N+1 protection is configured
Testing SNCP Switching
Required when the SNCP service is configured
Testing ERPS Required when ERPS is configured Testing the
Two-Fiber Bidirectional MSP Switching
Required when two-fiber bidirectional MSP is configured
Testing Linear MSP Switching
Required when 1+1/1:N linear MSP is configured
Querying Clock Status Required
Testing the 24-Hour BER Required when the E1 service is available
3.2 Documents and Tools Preparation
Based on the scale of the radio transmission network, commissioning engineers can adopt the hop commissioning method or network commissioning method.
Documents
Before commissioning the equipment, you must make the following documents available:
l Engineering and design documents, including:
– Network Planning
– Engineering Design
l Commissioning guide documents, including:
– OptiX RTN 620 Radio Transmission System Commissioning Guide
– OptiX RTN 620 Radio Transmission System Configuration Guide
Tools
Table 3-4 lists the tools required for the commissioning task.
Table 3-4 List of tools and meters
Tool and Meter Application Scenario
Adjustable wrench, screwdriver, telescope, intercom, socket-head wrench, multimeter and a test cable with a BNC connector at one end, north-stabilized indicator
Aligning the antennas
Laptop on which the LCT is installed l Configuring site commissioning data
l Testing connectivity of E1 cables
l Querying the DCN status
Hand-Held Tool Configuring site commissioning data
BER tester l Testing connectivity of E1 cables
l Testing E1 services by using a BER tester
l Testing the AM switching by using a BER tester
l Testing IF 1+1 switching
l Testing N+1 protection switching
l Testing SNCP switching
l Testing two-fiber bidirectional MSP switching
l Testing linear MSP switching
l Testing 24-Hour BER
Tool and Meter Application Scenario
Network tester Testing connectivity of Ethernet cables
Optical power meter, short fiber jumper Testing connectivity of fiber jumpers NMS server on which the Web LCT is
installed
Network commissioning by using the Web LCT
E1 jumper Testing the 24-hour BER
3.3 Checking Commissioning Conditions
Before performing site commissioning and system commissioning, check whether the equipment meets the commissioning requirements.
3.3.1 Checking Site Commissioning Conditions
Before performing site commissioning, you need to check the equipment and the weather.
3.3.2 Checking System Commissioning Conditions
Before performing system commissioning, you need to check the equipment and the weather.
3.3.1 Checking Site Commissioning Conditions
Before performing site commissioning, you need to check the equipment and the weather.
The site commissioning conditions are listed as follows:
l The hardware installation must be complete and pass the installation check.
l The power for the equipment must be available.
l The service signal cables that are connected to other equipment must be routed as required.
l The site conditions and antenna commissioning personnel must meet the requirements for operations at heights.
l The weather must be favorable without rain, snow, or mist.
3.3.2 Checking System Commissioning Conditions
Before performing system commissioning, you need to check the equipment and the weather.
The system commissioning conditions are listed as follows:
l The NE commissioning of the radio equipment at both ends of the radio link must be complete.
l The weather must be favorable for outdoor work. There should be no rain, snow or fog between two sites.
4 Site Commissioning Guide
About This Chapter
This topic describes how to perform all site commissioning items.
4.1 Powering On the Equipment
By checking the process of powering on equipment, you can check whether the hardware system of the equipment and the power system are working properly.
4.2 Configuring Site Commissioning Data by Using the Web LCT
This topic describes how to configure site commissioning data by using the Web LCT.
4.3 Configuring Site Commissioning Data with a Hand-Held Tool
This topic describes how to configure site commissioning data by using a hand-held tool.
4.4 Testing Connectivity of Cables
In the installation process, the hardware part of service cables may become faulty or the service cables may be incorrectly connected. To ensure that services run normally, you need to test connectivity of the cables.
4.5 Aligning Antennas
Aligning antennas is the most important activity in site commissioning, and its result has a direct impact on the performance of radio links.
4.6 Querying the Status of Radio Links
After aligning the antennas, you need to query the status of radio links and ensure that the radio links are in normal status.
4.7 Querying DCN Status
The NMS manages NEs through DCN channels. Querying the radio links through the HOP management function on the Web LCT, you can check whether the DCN of radio links runs normally.
4.1 Powering On the Equipment
By checking the process of powering on equipment, you can check whether the hardware system of the equipment and the power system are working properly.
Prerequisite
l The hardware installation must be complete and pass the installation check.
l The power supply must be available and the fuse capacity must meet the requirement of the equipment.
l The power supply (such as the power box of the cabinet) must be turned off.