ACX7509 Routing and Control Board

Routing and Control Board Front Panel

Figure 2 shows the front panel of the ACX7509 RCB.

Figure 2: ACX7509 RCB Front Panel

1 — Ejector handles	6 — USB port
2 — BITS clock port with LEDs	7 — 10MHz IN/OUT ports
3 — Reset button	8 — PPS IN/OUT port
4 — Console (CON) port	9 — Online/Offline button
5 — Management (MGMT) port

The ports located on the RCB connect the RCB to one or more external devices on which system administrators can issue Junos OS Evolved CLI commands to manage the router. In addition, the RCB includes ports that you use to connect external clock interfaces for BITS and GPS functions.

The RCB interface ports with the indicated labels function as follows:

• CON—Connects the RCB to a system console through a serial cable with an RJ-45 connector.

• MGMT—Connects the RCB through an Ethernet connection to a management LAN (or any other device that plugs into an Ethernet connection) for out-of-band management. The port uses an autosensing RJ-45 connector to support 10-Mbps, 100-Mbps, or 1000-Mbps connections. Two small LEDs (an activity LED and a link LED) on the port indicate that the connection is in use.

  The link LED is:

  • Green (steady) when the 1000-Mbps link is up.

  • Orange (steady) when the 10/100-Mbps link is up.

  • Off when the link is down.

  The activity LED is:

  • Green (blinking) when traffic is passing through the port.

  • Off when traffic is not passing through the port.

  Both activity and link LEDs are off when the link is down.

• BITS—Building-integrated timing system (BITS) is the external clocking interface for connecting to external clocking devices.

• 10MHZ (one input and one output)—The 10-MHz timing connectors on the front panel of the router connect to external clock signal sources. The clocking ports provide the synchronized output clocks from any one of the reference clock inputs, based on the clock’s priority.

• PPS (one input and one output)—1-pulse-per-second (PPS) connector on the front panel of the router connects to external clock signal sources. The clocking ports provide the synchronized output clocks from any one of the reference clock inputs, based on the clock’s priority.

• USB—Provides a removable media interface through which you can install Junos OS Evolved manually. Junos OS Evolved supports USB version 2.0 and later.

The following buttons are located on the RCB:

• RESET button—When pressed, reboots the RCB as follows:

  • Short press reboots the RCB and the reset-reason logs the button press event. The press event is logged in the RCB FPGA register.

  • When pressed for more than 10 seconds, the RCB reboots with an option for BIOS recovery.

• Online/Offline button—When the RCB is offline and if the button is pressed (short press), the RCB starts booting. When the RCB is online and if the button is pressed for four seconds or more (long press), the RCB shuts down.

Routing and Control Board LEDs

The LEDs—labeled SSD0, SSD1, PWR, STS, ALM, and MST—are located on the faceplate of the RCB.

The RCB controls the ACX7509 router, and the LEDs on the RCB display the status and functioning of the ACX7509 chassis. See Table 2.