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MX2008 Craft Interface Description | 43
MX2008 Alarm Relay Contacts on the Craft Interface | 45
Disconnecting the Alarm Relay Wires from the MX2008 Craft Interface
To disconnect the alarm relay wires from the router and an alarm-reporting device (see
Figure 141 on page
341):
1. Disconnect the existing wire at the external device.
2. Attach an electrostatic discharge (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 (see
Figure 141: Alarm Relay Contacts
1
Table 108: Alarm Relay Contacts on the Craft Inteface
Function No.
1
Label
MINOR ALARM—[NC C NO]
MAJOR ALARM—[NC C NO]
Table 108 on page
Description
The alarm relays consist of three terminal
contacts with a normal closed (NC), common
(C), and normal open (NO) relays that signal a
minor or major alarm when broken.
341
341).
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