H3C MSR 20 User Manual page 90

90 C 3: M
HAPTER ULTIFUNCTIONAL
Interface Cable
I M
NTERFACE ODULES
Figure 99 MIM-8E1 (120-ohm) panel
Figure 100 MIM-8E1 (75-ohm) panel
The following table describes the LEDs on the MIM-8E1/MIM-8E1-F panel:
Table 51 Description of the LEDs on the MIM-8E1/MIM-8E1-F panel
LED
LINK
ACTIVE
The MIM-8E1/MIM-8E1-F module provides eight E1 ports and adopts a 120-ohm
or a 75-ohm 8E1 conversion cable. The two types of cables look similar. Both of
them have a DB-68 connector at one end for connecting the router. At the other
end, however, the 75-ohm 8E1 conversion cable provides 16 coaxial cable
connectors; and the 120-ohm 8E1 conversion cable provides eight twisted pair
cable connectors, as shown in the following figures:
Figure 101 75-ohm 8E1 conversion cable
Description
OFF means no link is present; ON
means a link is present.
OFF means no data is being
transmitted or received. ON means
data is being transmitted or received.