Optical ILA Chassis

Optical ILA Chassis Description

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

Optical ILA Front Panel and FRU Panel

• Front Panel

• FRU Panel

Front Panel

Figure 1 shows the front panel of the optical ILA.

Figure 1: Optical ILA Front Panel

1 — Status LEDs	5 — Management (MGMT) port
2 — LC port connectors	6 — Console (CON) port
3 — USB (USB) port	7 — On/off button (ON/OFF)
4 — USB (USB) port

Figure 2: LC Ports

1 — Output line A—for example, east to west direction (LINE A OUT)	4 — Input line B (LINE B IN)
2 — Input line A (LINE A IN)	5 — Monitor output line B (MON B OUT)
3 — Output line B–for example, west to east direction (LINE B OUT)	6 — Monitor output line A (MON A OUT)

The LC ports on the optical ILA have line interfaces toward the optical network (LINE IN and LINE OUT). The optical ILA is bidirectional—with directions east 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 Figure 2.

FRU Panel

Figure 3 shows the FRU panel on the optical ILA.

Figure 3: Optical ILA FRU Panel

1 — Grounding points	3 — Fan modules
2 — ESD point	4 — Power supplies

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

The optical ILA has two 150-W power supplies, either AC or DC depending on your configuration. The power supplies need to be both AC or both DC—you cannot mix AC and DC power supplies in the same chassis. Only one power supply is required to power the device, while the second power supply provides redundancy. When the optical ILA has both power supplies installed and connected to power, the device 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 12 VDC output with a standby voltage of 12 VDC. The power supplies can be hot-swapped—you do not need to power off the optical ILA or disrupt the optical ILA function to 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 status LEDs on the front panel of the chassis (see Figure 4)—two optical supervisory channel (OSC) status LEDs (OSC A and OSC B), a system status LED (SYS), an alarm LED (ALM), and a power LED (PWR). The OSC is a separate channel 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 information for network purposes. For instance, it carries data between sites for monitoring and controlling specifications in the system.

Figure 4: Chassis Status LEDs on an Optical ILA

1 — OSC B status (OSC B) LED	4 — Alarm (ALM) LED
2 — OSC A status (OSC A) LED	5 — Power (PWR) LED
3 — System status (SYS) LED

Table 1 describes the chassis status LEDs on an optical ILA.

Optical ILA Management Panel

The optical ILA management panel is found on the front panel (see Figure 5).

Figure 5: Optical ILA Management Panel Components

1 — RJ-45 console port (CON) to support RS-232 serial ports.	3 — USB port (USB). Debug only.
2 — RJ-45 (1000BASE-T) management Ethernet port (MGMT).	4 — USB port (USB). Debug only.

You manage the optical ILA by using the command-line interface (CLI), which is accessible through the console and out-of-band management ports on the management panel. In addition, the front panel has system status LEDs (see Table 4 in Optical ILA Chassis Status LEDs) that alert you to minor or major alarms or other issues with the amplifier. Figure 5 shows the management panel in detail.

You can also manage the optical ILA through Connectivity Services Director (CSD), which is a Junos Space application developed to manage the optical functionality provided by optical ILAs and integrated photonic line cards (IPLCs) that are installed in the PTX3000 routers. CSD is managed over a data communications network (DCN). CSD presents a topological network view in an intuitive, comprehensive, and cohesive manner that enables you to visualize optical sites, links, and services and 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 currently applied on the device, such as wavelength and power.

• Modify the existing parameters of the optical port to suit your network needs or resolve any alarms caused by certain interface settings.

• View the active alarms generated for the optical interface to analyze and resolve the condition that triggered the alarm on the device.

• Configure threshold crossing alarms (TCAs) for the optical interface.

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

Optical ILA Management Port LEDs

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

The management port is an Ethernet port that supports an RJ-45 connector and has separate LEDs for status and activity. Figure 6 shows the location of the LEDs.

Figure 6: Management Port LEDs on the Optical ILA

1 — Link

2 — Status

Table 2 describes the RJ-45 management port LEDs.