T640 LCC-CB Description
Each LCC-CB consists of the following components:
100-MB Ethernet switch for intermodule communication.
PCI bus to the Routing Engines.
Switch processor mezzanine board (SPMB).
Figure 1 shows the LCC-CB.

The following components are located on the LCC-CB faceplate:
Three LEDs labeled
MASTER
,FAIL
, andOK
indicate its status.The online/offline button.
Two configuration switches—
M/S
andCHASSIS ID
—that must be set toS
and0
for standalone T640 routers.RJ-45 ports labeled
SFC0
throughSFC5
, which are not currently supported on the T640 router. Two LEDs for each port—labeledLINK
andACT
— are also not supported.One JCS port, which is not supported on the T640 router. The
LINK
LED indicates the status of the port.