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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 3 Multifunctional Interface Modules
3-54
Note:
In the supported services described in the above table, CBR represents Constant Bit
Rate, rt_VBR represents Variable Bit Rate-Real Time, nrt_VBR represents Variable Bit
Rate-Non Real Time, and UBR represents Unspecified Bit Rate.
3.16.3 Interface LEDs
MIM-1AT3 panel is shown in the following figure:
Figure 3-60
MIM-1AT3 panel
The following table describes the LEDs on the MIM-1AT3 panel:
Table 3-34
Description of the LEDs on the MIM-1AT3 panel
LED
Description
LINK
OFF means no link is present; ON means a link is present.
ACT
OFF means no data is being transmitted or received; blinking
means data is being received or/and transmitted.
3.16.4 Interface Cable
External ports provided by MIM-1AT3 module are two SMB sockets respectively
functioning as Tx end and Rx end for transmitting data and receiving data. The ports
work in 75-ohm unbalanced transmission mode and are connected to the peer device
using a pair of 75-ohm unbalanced coaxial cables as shown in
Figure 3-59
. Several
cable length options are available.
Note:
MIM-1AE3 and MIM-1AT3 modules use the same type of cables for connection, which
are called E3/T3 cables in this manual.