Replacing The Mx240 Craft Interface; Interface; Removing The Mx240 Craft Interface; Figure 99: Alarm Relay Contacts - Juniper MX240 Hardware Manual

Replacing the MX240 Craft Interface

See Also
Copyright © 2019, Juniper Networks, Inc.
1. Disconnecting the Alarm Relay Wires from the MX240 Craft Interface on page 251
Removing the MX240 Craft Interface on page 251
2.
Installing the MX240 Craft Interface on page 252
3.
Connecting the Alarm Relay Wires to the MX240 Craft Interface on page 253
4.
Disconnecting the Alarm Relay Wires from the MX240 Craft Interface
To disconnect the alarm relay wires from the router and an alarm-reporting device (see
Figure 99 on page 251):
Disconnect the existing wire at the external device.
1.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
2.
ESD points on the chassis.
Using a 2.5-mm flat-blade screwdriver, loosen the small screws on the face of the
3.
terminal block and remove the block from the relay contact.
Using the 2.5-mm flat-blade screwdriver, loosen the small screws on the side of the
4.
terminal block. Remove existing wires from the slots in the front of the block.

Figure 99: Alarm Relay Contacts

MX240 Craft Interface Overview on page 35
Connecting the Alarm Relay Wires to the MX240 Craft Interface on page 253
Preventing Electrostatic Discharge Damage to an MX240 Router on page 380

Removing the MX240 Craft Interface

To remove the craft interface (see
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
1.
ESD points on the chassis.
Detach any external devices connected to the craft interface.
2.
Loosen the captive screws at the left and right corners of the craft interface faceplate.
3.
Chapter 4: Maintaining, Installing and Replacing Components
Figure 100 on page 252):
251