Mx Scbe Components; Mx240 Scbe Leds; Table 58: Mx Scbe Leds - Juniper MX240 Hardware Manual

MX SCBE Components

Related
Documentation

MX240 SCBE LEDs

Copyright © 2017, Juniper Networks, Inc.
Each MX SCBE consists of the following components:
I2C bus logic, used for low-level communication with each component
Component redundancy circuitry
Control Board/Routing Engine mastership mechanism
Gigabit Ethernet switch that is connected to the embedded CPU complex on all
components
External clock interface—Allows BITS or GPS clock source input to the centralized
timing circuit, or allows centralized timing to be output to BITS or GPS
Switch fabric—Provides the switching functions for the DPCs, FPCs, and MPCs
Control field-programmable gate array (FPGA)—Provides the Peripheral Component
Interconnect (PCI) interface to the Routing Engine
1000Base-T Ethernet controller—Provides a 1-Gbps Ethernet link between the Routing
Engines
Circuits for chassis management and control
Power circuits for the Routing Engine and SCBE
LEDs—Provide status of the SCBE and clocking interface
MX240 SCB Description on page 97
MX240 SCBE LEDs on page 101
Upgrading an MX240 SCB on page 347
The ,
FABRIC ACTIVE FABRIC ONLY
SCBE. The BITS , GPS , and
of the respective clocking interface.
MX SCBE LEDs.

Table 58: MX SCBE LEDs

Label Color
Green
FABRIC
ACTIVE
FABRIC Green
ONLY
–
Chapter 8: Switch Fabric Components and Descriptions
, and LEDs indicate the status of the MX
OK/FAIL
UTI LEDs, located next to the
Table 58 on page 101
State Description
On steadily Fabric is in active mode.
On steadily MX SCBE operates in fabric-only mode.
Off MX SCBE operates in fabric/control board mode.
EXT CLK port, indicate the status
describes the functions of the
101