CHAPTER 22
Replacing Chassis Components
•
Replacing the MX240 Craft Interface on page 265
Replacing the MX240 Craft Interface
1.
Disconnecting the Alarm Relay Wires from the MX240 Craft Interface on page 265
2.
Removing the MX240 Craft Interface on page 266
3.
Installing the MX240 Craft Interface on page 266
4.
Connecting the Alarm Relay Wires to the MX240 Craft Interface on page 267
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 108 on page 265):
1. Disconnect the existing wire at the external device.
2. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
3. Using a 2.5-mm flat-blade screwdriver, loosen the small screws on the face of the
terminal block and remove the block from the relay contact.
4. Using the 2.5-mm flat-blade screwdriver, loosen the small screws on the side of the
terminal block. Remove existing wires from the slots in the front of the block.
Figure 108: Alarm Relay Contacts
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