both 10- and 100-Mbps connections. Two small LEDs on the left edge of the port
indicate the connection in use: the yellow LED lights for a 10-Mbps connection, and
the green LED lights for a 100-Mbps connection.
•
CONSOLE
—Connects the Routing Engine to a system console through an RS-232
(EIA-232) serial cable.
•
AUXILIARY
— Connects the Routing Engine to a laptop, modem, or other auxiliary device
through an RS-232 (EIA-232) serial cable.
T4000 Alarm Relay Contacts
The CIP has two alarm relay contacts for connecting the router to external alarm devices
(see
Figure 15 on page 28
). Whenever a system condition triggers either the red or yellow
alarm on the craft interface, the alarm relay contacts are also activated. The alarm relay
contacts are located below the Routing Engine ports. 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.
Related
Documentation
Overview of Connecting the T4000 Router to External Devices on page 111
•
•
Tools and Parts Required to Connect the T4000 Router to External Devices on page 112
•
Connecting the T4000 Router to a Management Console or Auxiliary Device on page 112
•
Connecting the T4000 Router to an External Alarm-Reporting Device on page 114
•
Connecting the T4000 Router to a Management Ethernet Device on page 118
T4000 Connector Interface Panel (CIP) LEDs
Two small LEDs on the left edge of the
ETHERNET
port indicate activity and the speed
of the connection in use.
Table 9 on page 29
describes the functions of the LEDs.
NOTE:
For routers with RE-C1800 Routing Engines, see the release notes for
your router regarding more information about the LED behavior for the
ETHERNET
port.
Table 9: CIP LEDs
Description
State
Color
LED
Traffic is passing through the port.
On steadliy
Green
ACT 0
and
ACT 1
No traffic is passing through the port.
Off
--
29
Copyright © 2013, Juniper Networks, Inc.
Chapter 3: T4000 Hardware Components Overview
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