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Table 45: Components on the RCB
Function No.
1
2
3
4
5
6
7
12
8
11
9
10
Label
ONLINE, MASTER, and
OK/FAIL
SSD0 and SSD1
GPS, UT1, and BITS
RESET
AUX
CLK0 and CLK1
LNK-0 and LNK-1
USB
MGT
Description
There is one bicolor LED for each RCB control.
The ONLINE LED indicates that the RCB is
transitioning online and functioning properly.
The MASTER LED indicates that this board is
a master RCB, and the OK/FAIL LED indicates
the RCB has failed.
LEDs shows the state of the two solid-state
drives (SSDs) in the RCB.
These ports shows the external clocking
interface status. There is one bicolor LED for
each external clock interface—GPS, UTI and
BITS.
This button used to reboot the RCB.
This port is used to connect a laptop, modem,
or other auxiliary unit.
Connects the RCB to two external clock
interfaces for BITS and GPS function through
a serial cable with an RJ-45 connector.
Two SFP+ ports connects the RCB through an
Ethernet connection to support hardware
diagnostics and JCS port testing. The port
supports two 1–Gbps or 10-Gbps connections.
The LED on these ports are associated with
each of the SFP+ port (XGE-0 and XGE-1) and
indicates the connection in use.
This port is used to install a USB flash drive that
contains Junos OS.
This port is a dedicated management channel
for device maintenance. It is also used for
system administrators to monitor and manage
the MX2008 router remotely.
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