PTX5000 Chassis

Craft Interface Front Panel

Figure 4 shows the craft interface.

Figure 4: Craft Interface

1 — Alarm relay contacts	6 — Alarm LEDs and ACO/LT button
2 — SIB LEDs	7 — M/S CHASSIS NUM configuration switches
3 — Host Subsystem LEDs	8 — Power system LEDs
4 — CCG LEDs	9 — LCD
5 — Fan tray LEDs	10 — LCD navigation buttons

The front panel of the craft interface contains:

• A four-line LCD display, along with six navigation buttons. The LCD display operates in Idle mode or alarm mode.

• Alarm relay contacts.

• Two configuration switches:

  • The M/S configuration switch must be set to S.

  • The CHASSIS ID configuration switch must always be set to 0.

    Note:

    The CHASSIS ID configuration switch is set to 0 by default.

• LEDs

  • Yellow Minor Alarm LED, Red Major Critical Alarm LED, and alarm cutoff/lamp test ACO/LT button

  • Host Subsystem Master, OK, and FAIL LEDs

  • SIB OK and ACT LEDs

  • Fan tray LEDs

  • PDU LEDs

  • PSM LEDs

Craft Interface LCD

A four-line LCD is located in the craft interface, along with six navigation buttons. The LCD operates in two modes:

• LCD idle mode

• LCD alarm mode

• Idle Mode
• Alarm Mode

Idle Mode

During normal operation, the LCD operates in idle mode and reports current status information, as shown in Figure 5.

Figure 5: LCD in Idle Mode

The lines in the display report the following information:

• First line—Router name.

• Second line—Length of time the PTX5000 has been running, reported in the following form:

• Third and fourth lines—Status messages, which rotate at 2-second intervals. Some conditions, such as removal or insertion of a system component, can interrupt the messages.

To add a message that alternates every 2 seconds with the default status messages, use the set chassis display message command.

Alarm Mode

When a red or yellow alarm occurs, the LCD switches to alarm mode and reports the alarm condition, as shown in Figure 6.

Figure 6: LCD in Alarm Mode

The lines in the display report the following information:

• First line—Router name.

• Second line—Number of active alarms.

• Third and fourth lines—Individual alarm messages, with the most severe condition shown first. The prefix on each line indicates whether the alarm is a red (R) or yellow (Y) alarm.

LCD Navigation Buttons

The LCD display has the following navigation buttons:

• Menu button

• Enter button

• Four arrow buttons for scrolling up or down, and left or right

Craft Interface Alarm LEDs

Two large alarm LEDs are located on the craft interface. Both LEDs can be lit simultaneously.

• The circular red LED lights to indicate a critical condition that can result in a system shutdown.

• The triangular yellow LED lights to indicate a less severe condition that requires monitoring or maintenance.

The LCD display on the craft interface reports the cause of the alarm. A condition that causes an alarm LED to light also activates the corresponding alarm relay contact on the craft interface.

Table 1 describes the alarm LEDs.

Table 1: Alarm LEDs on the PTX5000 Craft Interface

Shape	Color	State	Description
	Red	On steadily	Critical alarm LED—Indicates a critical condition that can cause the PTX5000 to stop functioning. Possible causes include component removal, failure, or overheating.
	Yellow	On steadily	Warning alarm LED—Indicates a serious but nonfatal error condition, such as a maintenance alert or a significant increase in component temperature.

Craft Interface SIB LEDs

The left side of the craft interface has two LEDs for each SIB, which indicate the status of that SIB. The corresponding SIB slots are labeled 0 through 8. Table 2 describes the functions of the SIB LEDs.

Craft Interface Host Subsystem LEDs

Each host subsystem has three LEDs—labeled MASTER, OK, and FAIL—located to the right of the SIB LEDs on the craft interface, that indicate the status of the host subsystem. The LEDs listed under HOST0 show the status of the Routing Engine in slot RE0 and the CB in slot CB0. The LEDs listed under HOST1 show the status of the Routing Engine in slot RE1 and the CB in slot CB1. Table 3 describes the functions of the host subsystem LEDs.

CCG LEDs

Each Centralized Clock Generator (CCG) has three LEDs—labeled MASTER, OK, and FAIL—located to the right of the host subsystem LEDs on the craft interface that indicate the status of the CCGs. The LEDs labeled CCG0 show the status of the CCG in slot CCG0. The LEDs labeled CCG1 show the status of the CCG in slot CCG1. Table 4 describes the functions of the CCG LEDs.

Fan Trays LEDs

One status LED for each fan tray is located to the right of the host subsystem LEDs on the craft interface. The three fan tray status LEDs are labeled 0 through 2.

Power Distribution Unit LEDs

One OK LED for each power distribution unit is located on the craft interface below the host subsytem LEDs. The two LEDs are labeled 0 and 1.

Power Supply Modules LEDs

A status LED for each power supply module is located on the craft interface below the PDU LEDs. The four PSM status LEDs are labeled 0 through 3.

CCG Slots

The Centralized Clock Generators (CCGs) are installed into the upper rear of the chassis in the slots labeled CCG0 and CCG1. One CCG is shipped as part of the standard PTX5000 configuration, but up to two CCGs can be installed to provide redundancy.

A nonredundant CCG is hot-pluggable. For redundant CCGs, the primary CCG is hot-pluggable. The backup CCG is hot-removable and hot-insertable if the primary CCG is functioning. Removing the backup CCG does not affect the functioning of the PTX5000. Taking the primary CCG offline might result in a brief loss of the clock lock while the backup CCG becomes the primary.

CCG Function

CCGs provide a 19.44-MHz Stratum 3E clock signal for the Ethernet network interfaces on the PTX5000.

CCG Components

Each CCG (see Figure 8) consists of the following components:

• 19.44-MHz Stratum 3E clock.

• Field-programmable gate array (FPGA) that performs multiplexing of clock sources.

Figure 8: CCG

1 — Three LEDs—OK, FAIL, and MASTER—that display the status of the CCG.	3 — Two RJ-48 connectors labeled BITS A and BITS B for BITS external clock inputs, 1.5444 MHz or 2.048 MHz. Two LEDs for each BITS connector—FAULT and LINK—that display the status of the BITS ports.
2 — ONLINE/OFFLINE button	4 — Four GPS connectors labeled GPS0 CLOCK, GPS0 SYNC, GPS1 CLOCK, and GPS1 SYNC, for GPS external clock inputs, 5 MHz or 10 MHz. The LEDs for the GPS ports are not supported.