Juniper M120 - Replacing the Management Ethernet Cable on the M120 Routing Engine

Figure 60: M120 Routing Engine Interface Ports and Alarm Relay Contacts
Related
Documentation
M120 Alarm Relay Contacts on the Craft Interface on page 17•
• Connecting the M120 Router to an External Alarm-Reporting Device on page 158
• Preventing Electrostatic Discharge Damage to an M120 Router on page 316
• M120 Routing Engine Interface Ports and Status Indicators on page 28
Replacing the M120 Craft Interface
The craft interface is located above the FPC card cage, as shown in Figure 1 on page 8.
It houses the Routing Engine interface ports, which accept connections to external
management and alarm-reporting devices.
The craft interface is hot-insertable and hot-removable. It weighs approximately
1.6 lb (.73 kg). When the craft interface is removed, you cannot control or communicate
with the router using an external device. When you install the craft interface, allow several
minutes for the display to reflect the current state of the router.
To replace the craft interface, perform the following procedures:
•
Removing the M120 Craft Interface on page 184
•
Installing the M120 Craft Interface on page 185
Removing the M120 Craft Interface
The craft interface is located on the front of the chassis above the FPC card cage. The
craft interface weighs approximately 1.6 lb (0.73 kg).
To remove the craft interface (see Figure 61 on page 185):
NOTE: Removing the front upper fan tray before you remove the craft
interface makes it easier to grasp the craft interface as you remove it. For
instructions on removing a front fan tray, see “Replacing an M120 Fan Tray”
on page 190.
Copyright © 2018, Juniper Networks, Inc.184
M120 Multiservice Edge Router Hardware Guide