Juniper Networks M160 manual Bits Input Ports, Alarm Relay Contacts

RE 0.

M160 Internet Router Hardware Guide

The ports with the indicated label in each set function as follows:

ETHERNET—Connects the Routing Engine through an Ethernet connection to a management LAN (or any other device that plugs into an Ethernet connection) for out-of-band management. The port uses an autosensing RJ-45 connector to support both 10- and 100-Mbps connections. Two small LEDs on the left edge of the port indicate the connection in use: the LED labeled ETHERNET lights yellow or green for a 10-Mbps or 100-Mbps connection, and the LED labeled ACT lights green when traffic is passing through the port.

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.

For information about the pinouts for the connectors, see “Cable

Connector Pinouts” on page 269.

Figure 15 shows the ports that connect to the Routing Engine installed in slot The arrangement of ports for the Routing Engine installed in slot RE 1 is the same.

Figure 15: Routing Engine Interface Ports for Host Module 0

HOST

0

Ethernet LEDs

ETHERNET

ACT

Ethernet port

YEL=10Mb

GRN=100Mb

Console port

CONSOLE

Auxiliary port

AUXILIARY

1236

BITS Input Ports

In the center of the CIP are two ports labeled BITS A and BITS B (see Figure 16). The router does not support BITS input, so these ports do not function.

Alarm Relay Contacts

At the bottom of the CIP are two relay contacts for connecting the router to external alarm-reporting devices, the upper labeled RED ALARM and the lower

34 Connector Interface Panel (CIP)