Juniper Networks M160 manual Replace Alarm Relay Wires, Serial Port Connector

Replacing Hardware Components

b.Unscrew the screws that secure the cable connector to the port, using a 2.5-mm flat-blade screwdriver if necessary.

c.Pull the cable connector straight out of the port.

d.Disconnect the cable from the console or auxiliary device.

2.Plug the female end of the replacement serial cable into the appropriate CONSOLE or AUXILIARY port. Figure 66 shows the external device ports on the CIP. The ports labeled HOST 0 connect to the Routing Engine in the upper Routing Engine slot (RE 0), and the ports labeled HOST 1 connect to the Routing Engine in the lower Routing Engine slot (RE 1).

3.Tighten the screws on the connector, using a 2.5-mm flat-blade screwdriver if necessary.

4.Power on the auxiliary or console device.

Figure 68: Serial Port Connector

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Replace Alarm Relay Wires

To connect the router to external alarm-reporting devices, attach wires to the RED ALARM and YELLOW ALARM relay contacts on the CIP. A system condition that triggers the red or yellow alarm LED on the craft interface also activates the corresponding alarm relay contact.

The terminal blocks that plug into the alarm relay contacts are supplied with the router. They accept wire of any gauge between 24-AWG and

12-AWG (0.20 and 3.33 mm2), which is not provided. Use the gauge of wire appropriate for the external device you are connecting.

To replace the wires connecting to an alarm-reporting device, follow this procedure (see Figure 66:

1.Disconnect the existing wire at the external device.

2.Prepare the required length of replacement wire with gauge between 24-AWG and 12-AWG (0.20 and 3.33 mm2).

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 and insert replacement wires. Tighten the screws to secure the wire.

Replacing the CIP and Routing Engine Interface Port Cables 147