AsantéHub 2072 Network Management Module Installation Guide
| Name | Function | 
| 
 | 
 | 
| Hub Status LEDs | Provides warning and packet collision data about | 
| (bottom row of 8 LEDs | the segment (not the module); the first four are | 
| per segment) | warning LEDs, the second four provide the total | 
| 
 | percentage of packet collisions occurring at any | 
| 
 | instant on Segment 1 or Segment 2. | 
| 
 | LC - Late Collision. A collision which occurs after | 
| 
 | the 64 byte Collision window | 
| 
 | MC - Misaligned/CRC. This received data frame | 
| 
 | was not an integer multiple of eight bits (or one | 
| 
 | byte). | 
| 
 | RF - Runts/Fragments. This frame is greater than | 
| 
 | two bytes and less than 64 bytes, has a Start | 
| 
 | Frame Delimiter, and has a bad Frame Check | 
| 
 | Sequence (CRC) error). | 
| 
 | SM - Short Event/Missing SFD. This data frame is | 
| 
 | less than ten bytes and does not have a Start | 
| 
 | Frame Delimiter. | 
| Flashes when  | |
| 
 | Link  | 
| 
 | the NMM is in operational mode. | 
| SETUP LED | Lights continuously to indicate  | 
| 
 | being used for setup (DIP Switch 2 in DOWN | 
| 
 | position). | 
| 
 | Flashes when management station running AMS is | 
| 
 | communicating through the  | 
| 
 | Band) connection. | 
| ASANTEVIEW  | Terminates the  | 
| BAND TERMINATION | hub in the chain must be terminated. If only one | 
| (DIP Switch 1) | hub is in the chain, set this switch to the DOWN | 
| 
 | position. | 
| RS232/AMS LINK | Indicates (switch is set to UP position) RS232 is | 
| CONFIGURATION | being used with AsantéView  | 
| (DIP Switch 2) | Switch set to DOWN position indicates RS232 is | 
| 
 | used for terminal mode or when AsantéView Out- | 
| 
 | |
| 
 | NMM. | 
| Select Slot button | Lets you select a particular module and then use | 
| 
 | the Change Segment button to place the module | 
| 
 | on a different segment. | 
| Change Segment button | Lets you place the selected module on Segment 1, | 
| 
 | Segment 2, or neither segment. | 
| Segment 1 LED | Lights to indicate that the module is currently on | 
| 
 | Segment 1 of the backplane. Segment 1 is the | 
| 
 | default setting. If both Segment LEDs are off, the | 
| 
 | module is not connected to either of the two | 
| 
 | segments. | 
| 
 | 
 | 
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