Differences between options 55NPO2, 55NPO2(STND), and 55NPO2E displayed on the front panel when the TN55NPO2 board is added on the NMS

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55NPO2 refers to TN55NPO2 in compatible mode and 55NPO2(STND) refers to TN55NPO2 in standard mode. The configuration interfaces on the NMS vary with the board working mode (compatible or standard). 55NPO2E refers to TN55NPO2E.

Other related questions:
Difference between 54NS3 and 54NS3 (STND)
When a logical board of 54NS3 is created on the NMS, the logical board type determines the board working mode. Specifically, if 54NS3 (STND) is created, the board works in standard mode; if 54NS3 is created, the board works in compatible mode.

Whether the fan board on a BWS 1600G can be displayed on the NMS panel
The fan board on a BWS 1600G cannot be displayed on the NMS panel. However, the fan board on an OSN 6800 or 8800 can be displayed on the NMS panel. If a fan board is faulty, the FAN_FAIL alarm is reported. You need to replace the fan board.

Can the power module of AR2240-S be moved to the back of the router
The power module on the front panel of AR2240-S cannot be moved to the back panel. Slots on the front panel of AR2240-S are specified for the power module and SRU respectively. Slots on the back panel are used to install service cards.

How many the external Ports are there on the front panel
Name Type Quantity Video graphics array (VGA) port DB-15 1 USB port USB2.0 2

Cause why "STND" is displayed in the NE Explorer for the OSN 8800 TN54TOA board
It is a reserved design, because there are boards in compatible mode (COMP) and boards in standard mode (STND).

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