H3C Technologies H3C MSR 50 - Manual (Page 135)

3-31
Step3 Check the status of the LINK LED for the MIM-1CPOS module: ON means the Rx link is present and
OFF means the opposite. In the latter case, check the line.
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Because invisible laser radiation may be emitted from the aperture of an optical port when no fiber
is connected or the dust cap is removed, do not stare into the open aperture.
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Replace the dust cap when no fiber is connected to the optical port.
E1/T1 Interface Module
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MIM-1E1
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MIM-2E1
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MIM-4E1
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MIM-1E1-F
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MIM-2E1-F
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MIM-4E1-F
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MIM-8E1
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MIM-8E1-F
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MIM-1T1
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MIM-2T1
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MIM-4T1
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MIM-1T1-F
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MIM-2T1-F
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MIM-4T1-F
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MIM-8T1
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MIM-8T1-F
MIM-1E1/MIM-2E1/MIM-4E1/MIM-1E1-F/MIM-2E1-F/MIM-4E1-F Modules
Introduction
1) MIM-1E1/MIM-2E1/MIM-4E1
MIM-1E1/MIM-2E1/MIM-4E1, the 1-/2-/4-port channelized E1/PRI interface module, transmits, receives,
and processes E1 data traffic. In addition, you can use the module for other purposes, such as CE1
access and the ISDN PRI function.
2) MIM-1E1-F/MIM-2E1-F/MIM-4E1-F
The MIM-1E1-F/MIM-2E1-F/MIM-4E1-F module is different from the MIM-1E1/MIM-2E1/MIM-4E1
module in the sense that:
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The FE1 operating mode supported by the E1-F modules allows only one n × 64 kbps bundle to be
formed on each interface, where n = 1 to 31. However, an E1 module allows arbitrary grouping of
31 channels and multiple bundles.