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Replacing the MX2010 Craft Interface

Disconnecting the Alarm Relay Wires from the MX2010 Craft Interface

Here’s how to disconnect the alarm relay wires from the MX2010 and an alarm-reporting device (see Figure 1):

  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 Table 1).
Figure 1: Alarm Relay ContactsAlarm Relay Contacts
Table 1: Alarm Relay Contacts on the Craft Interface

Function No.

Label

Description

1

MINOR ALARM—[NC C NO]

MAJOR ALARM—[NC C NO]

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.

Removing the MX2010 Craft Interface

Here’s how to remove the MX2010 craft interface:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Detach any external devices connected to the craft interface.
  3. Remove the 10 screws holding the EMI door in place and remove the EMI door. Refer to Figure 2.
    Figure 2: Removing the EMI DoorRemoving the EMI Door
  4. Remove the four screws holding the sheet metal cover in place and remove the sheet metal cover. Refer to Figure 3.
    Figure 3: Removing the Sheet Metal CoverRemoving the Sheet Metal Cover
  5. Loosen the two captive screws at the left and right sides of the craft interface faceplate by using the Torx (T10) screwdriver.
  6. Grasp the craft interface faceplate and carefully tilt it toward you until it is horizontal.
  7. Disconnect the ribbon cable from the back of the faceplate by gently pressing on both sides of the latch with your thumb and forefinger.
  8. Gently slide the left end of the craft interface out of the housing. The pin at the right end of the craft interface will auto-slide out of the dedicated hole. Refer to Figure 4.
    Figure 4: Sliding the Craft Interface Out of the HousingSliding the Craft Interface Out of the Housing
  9. Remove the craft interface from the chassis. See Figure 5.
Figure 5: Removing the Craft InterfaceRemoving the Craft Interface

See Also

Installing the MX2010 Craft Interface

Here’s how to install the MX2010 craft interface:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Grasp the craft interface with one hand, and hold the bottom edge of the craft interface with the other hand to support its weight.
  3. Orient the ribbon cable so that it plugs into the connector socket. The connector is keyed and can be inserted only one way. The pin on the right side of the craft interface indicates the positioning.
  4. Align the pin on the right side of the craft interface with the dedicated hole in the housing and gently slide the craft interface into the housing. See Figure 6.
    Figure 6: Installing the Craft Interface into the HousingInstalling the Craft Interface into the Housing
  5. Reattach the craft interface faceplate by positioning it in place and then tightening the two screws on the left and right sides using the Torx (T10) screwdriver.
  6. Reattach the sheet metal cover and EMI door by positioning them in place and then tightening the screws using a Torx (T10) screwdriver. See Figure 7.
    Figure 7: Reattaching the Sheet Metal Cover and EMI DoorReattaching the Sheet Metal Cover and EMI Door
  7. Reattach any external devices connected to the craft interface.

See Also

Connecting the Alarm Relay Wires to the MX2010 Craft Interface

Here’s how to connect the alarm relay wires between a router and an alarm-reporting device (see Figure 8):

  1. Prepare the required length of replacement wire with gauge between 28 AWG (0.08 mm2) and 14 AWG (2.08 mm2).
  2. Insert the replacement wires into the slots in the front of the block (see Table 2). Use a 2.5-mm flat-blade screwdriver to tighten the screws and secure the wire.
  3. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  4. Plug the terminal block into the relay contact, and use a 2.5-mm flat-blade screwdriver to tighten the screws on the face of the block.
  5. Attach the other end of the wires to the external device.
Figure 8: Alarm Relay ContactsAlarm Relay Contacts
Table 2: Connecting Alarm Relay Contacts

Function No.

Label

Description

1

MINOR ALARM—[NC C NO]

MAJOR ALARM—[NC C NO]

The alarm relays consist of three terminal contacts with a normal closed (NC), a common (C), and a normal open (NO) relay that signal a minor or major alarm when broken.

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