Juniper MX240 - Connecting the MX240 Router to an External Alarm-Reporting Device; Figure 78: Auxiliary and Console Ports; Figure 79: Routing Engine Console and Auxiliary Cable Connector

NOTE:
For console devices, configure the serial port to the following values:
•
Baud rate—9600
•
Parity—N
•
Data bits—8
•
Stop bits—1
•
Flow control—none
Figure 78: Auxiliary and Console Ports
Figure 79: Routing Engine Console and Auxiliary Cable Connector
Connecting the MX240 Router to an External Alarm-Reporting Device
To connect the router to external alarm-reporting devices, attach wires to the RED and
YELLOW relay contacts on the craft interface. (See Figure 80 on page 214.) 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 28-AWG and 14-AWG (0.08 and 2.08 mm
2
),
which is not provided. Use the gauge of wire appropriate for the external device you are
connecting.
To connect an external device to an alarm relay contact (see Figure 80 on page 214):
1. Prepare the required length of wire with gauge between 28-AWG and 14-AWG (0.08
and 2.08 mm
2
).
2. While the terminal block is not plugged into the relay contact, use a 2.5-mm flat-blade
screwdriver to loosen the small screws on its side. With the small screws on its side
facing left, insert wires into the slots in the front of the block based on the wiring for
the external device. Tighten the screws to secure the wire.
213Copyright © 2017, Juniper Networks, Inc.
Chapter 18: Connecting the MX240 Router to the Network