3Com MSR 20 Network Router User Manual


 
MIM-1T1/MIM-2T1/MIM-4T1/MIM-1T1-F/MIM-2T1-F/MIM-4T1-F Modules 93
Figure 103 MIM-1T1 panel
MIM-2T1 panel is similar to that of MIM-2T1-F, and they differ only in module
name. The following figure shows a MIM-2T1 panel.
Figure 104 MIM-2T1 panel
MIM-4T1 panel is similar to that of MIM-4T1-F, and they differ in silk-screen. The
following figure shows a MIM-4T1 panel.
Figure 105 MIM-4T1 panel
Interface Cable Interface cables (T1 cables) for MIM-1T1/MIM-2T1/MIM-4T1 and
MIM-1T1-F/MIM-2T1-F/MIM-4T1-F modules are 100-ohm straight-through
shielding network cables, as shown in the following figure:
Table 53 Description of the LEDs on MIM-1T1/MIM-2T1/MIM-4T1 and
MIM-1T1-F/MIM-2T1-F/MIM-4T1-F panels
LED Description
LINK/ACT ON means the carrier signal has been
received.
OFF means no carrier signal has been
received.
Blinking means data is being
transmitted or/and received.
LP/AL ON means the interface is in a
loopback.
Blinking means an AIS, LFA, or RAI
alarm signal is present.
OFF means no loopback or alarm is
present.
Note:
AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication