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Juniper was the first North American IP routing vendor to achieve the prestigious TL 9000 certification by the Quality of Excellence for Suppliers of Telecommunications (QuEST) Forum in the router category, for design, development, provision and service and support.
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M40e MCS Components and LEDs
Each MCS (shown in Figure 1) has the following components:
- PCI interface—Connects the MCS to the Routing Engine.
- 100-Mbps Ethernet switch—Carries signals and monitoring data between router components.
- 19.44-MHz stratum 3 reference clock—Generates clock signal for SONET/SDH PICs.
- I2C controller—Monitors the status of router components.
- Three LEDs—Indicate MCS status. There is a blue one labeled MASTER, a green one labeled OK, and an yellow one labeled FAIL. Table 1 describes the LED states.
- Offline button—Prepares the MCS for removal from the router when pressed.
- Extractor clips—Control the locking system that secures the MCS in the chassis.
Figure 1: M40e Miscellaneous Control Subsystem
Table 1: States for M40e MCS LEDs
Label |
Color |
State |
Description |
|---|---|---|---|
MASTER |
Blue |
On steadily |
MCS is master. |
OK |
Green |
On steadily |
MCS is functioning normally. |
Blinking |
MCS is starting up. |
||
FAIL |
Yellow |
On steadily |
MCS has failed. |
