Juniper EX9253 Hardware Manual page 25

2 Management port (MGMT)
—
3 Console port (CON)
—
4 SSD LEDs
—
SSDs
5
—
6 Master LED (MST)
—
7 Alarm LED (ALM)
—
The ports on the RE connect the switch to external devices on which system administrators can issue
Junos OS CLI commands to manage the switch and to external clocking and timing devices. The
functions of the ports are:
• CON—Connects the switch to a system console through a serial cable with an RJ-45 connector
attached.
• MGMT—Connects the switch to a management device for out-of-band management. The port uses
an autosensing RJ-45 connector to support 10-Mbps, 100-Mbps, or 1000-Mbps connections. Two
small LEDs on the port (see
blinks in amber color when the speed is 1000 Mbps, in green color when the speed is 100 Mbps,
and is unlit when the speed is 10 Mbps; the Link/Activity LED is lit green when traffic is passing
through the port.
Figure 7: LEDs on the Management Port
Speed LED
1
—
• BITS—Building-integrated timing supply (BITS) external clocking interface to connect to external
clocking devices.
• ToD—Time-of-day (TOD) port to connect external timing signal sources. This port is reserved for
future use.
9
10
11
12
13
14
Figure 7 on page 16) indicate the connection in use: the Speed LED
BITS port with LEDs
—
Clocking ports
—
OFFLINE button
—
ONLINE LED
—
OK/FAIL LED
—
RESET button
—
Link/Activity LED
2
—
16