Optical ILA Chassis - TechLibrary (2025)

Optical ILA Chassis Description

The optical ILA chassis is arigid sheet metal structure that houses all the other hardware components.The chassis measures 1.72in. (4.36cm) high, 9.6in.(24.4cm) deep, and 17.24in. (43.8cm) wide. The chassiscan be installed in racks or cabinets.

Optical ILA Front Panel and FRU Panel

The front panel of the opticalILA contains six LC port connectors, the ON/OFF button, the console and management ports, the systemstatus LEDs, and the USB ports. The field-replaceable unit (FRU) panelof the optical ILA contains the fan modules and power supplies forthe optical ILA.

• Front Panel

• FRU Panel

Front Panel

Figure1 shows the front panelof the optical ILA.

The LC ports on the optical ILA have line interfaces towardthe optical network (LINE IN and LINEOUT). The optical ILA is bidirectional—with directionseast to west and west to east. There are two optical ports per direction(two LINE IN ports, two LINE OUT ports, and two (MON) ports for monitoring).See Figure2.

FRU Panel

Figure3 shows the FRU panel on the opticalILA.

The cooling system in an optical ILA consists of three 12.4-Wfan modules. The fan modules can be hot-swapped—you do not needto power off the optical ILA or disrupt the optical ILA function toreplace a fan module.

The optical ILA has two 150-W power supplies, either AC or DCdepending on your configuration. The power supplies need to be bothAC or both DC—you cannot mix AC and DC power supplies in thesame chassis. Only one power supply is required to power the device,while the second power supply provides redundancy. When the opticalILA has both power supplies installed and connected to power, thedevice has full power redundancy. If a power supply fails or is removed,another power supply balances the electrical load without interruption.Each power supply provides 12VDC output with a standby voltageof 12VDC. The power supplies can be hot-swapped—you donot need to power off the optical ILA or disrupt the optical ILA functionto replace a power supply.

For more information about the components on the FRU panel,see Optical ILA Cooling System Description, Optical ILA AC Power Supply Description, and Optical ILA DC Power Supply Description.

Optical ILA Chassis Status LEDs

The optical ILA has five statusLEDs on the front panel of the chassis (see Figure4)—two optical supervisorychannel (OSC) status LEDs (OSC A and OSC B), a system statusLED (SYS), an alarm LED (ALM), and a power LED (PWR). The OSC is a separatechannel that carries overhead information for network management purposes.The OSC, which is an important section in every DWDM system, is a separate channel that carries overhead informationfor network purposes. For instance, it carries data between sitesfor monitoring and controlling specifications in the system.

Table1 describes thechassis status LEDs on an optical ILA.

Optical ILA Management Panel

The optical ILA management panelis found on the front panel (see Figure5).

You manage the optical ILA by using the command-line interface(CLI), which is accessible through the console and out-of-band managementports on the management panel. In addition, the front panel has systemstatus LEDs (see Table 4 in Optical ILA Chassis Status LEDs) that alert you to minor or majoralarms or other issues with the amplifier. Figure5 shows the management panel in detail.

You can also manage the optical ILA through Connectivity ServicesDirector (CSD), which is a Junos Space application developed to managethe optical functionality provided by optical ILAs and integratedphotonic line cards (IPLCs) that are installed in the PTX3000 routers.CSD is managed over a data communications network (DCN). CSD presentsa topological network view in an intuitive, comprehensive, and cohesivemanner that enables you to visualize optical sites, links, and servicesand a site view that provides status, configuration, alarms/faults,and performance monitoring functionality on the optical interfaces.By using CSD, you can perform the following tasks on an optical ILA:

• View the optical interface specifications that are currentlyapplied on the device, such as wavelength and power.

• Modify the existing parameters of the optical port tosuit your network needs or resolve any alarms caused by certain interfacesettings.

• View the active alarms generated for the optical interfaceto analyze and resolve the condition that triggered the alarm on thedevice.

• Configure threshold crossing alarms (TCAs) for the opticalinterface.

• View the performance monitoring details in statisticaland graphical formats for the optical interface.

Optical ILA Management Port LEDs

The management port—labeled MGMT—onthe optical ILA is located on the management panel.

The management port is an Ethernet port that supports an RJ-45connector and has separate LEDs for status and activity. Figure6 shows the location of the LEDs.

Table2 describes the RJ-45 managementport LEDs.