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TNM1AUX Is Huawei OSN 550 Auxiliary Boards
Huawei OSN 550 Auxiliary Boards TNM1AUX Overview
The TNM1AUX is an auxiliary interface board that provides one orderwire phone port, one 64 kbit/s synchronous transparent data port or one 19.2 kbit/s asynchronous transparent data port, one clock port and alarm input/output ports.
The functional version of the AUX is TNM1.
The TNM1AUX provides one orderwire phone port, one external clock port, one 64 kbit/s synchronous data port or one 19.2 kbit/s asynchronous transparent data port, and one outdoor cabinet monitoring port.
TNM1AUX board does not have any DIP switches or jumpers.
The TNM1AUX can be inserted in slots 1-6 in the chassis. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the AUX on the NMS are the same as its physical slots.
Functions and features of the TNM1AUX board
|
Function and Feature |
Board |
|
Synchronous/Asynchronous transparent data port |
Provides one 64 kbit/s synchronous transparent data port or 19.2 kbit/s asynchronous transparent data port. |
|
External clock port |
Provides two BITS clock input ports which also output same-source clock signals. The port impedance is 120 ohms. |
|
External time port |
Provides two external time input/output ports. |
|
Alarm input/output ports |
Provides alarm ports with six inputs and two outputs. |
|
Outdoor cabinet monitoring port |
Provides one outdoor cabinet monitoring port (sharing one port physically with an alarm input/output port) for monitoring the temperature and humidity of an outdoor cabinet. |
|
Orderwire phone port |
Provides one orderwire phone port so that operation/maintenance engineers at different workstations can have voice communication with each other. |
|
Cabinet indicator output/cascading port |
Provides one two-channel cabinet indicator output/cascading port for monitoring equipment alarms based on cabinet alarms. |
|
Maintenance features |
Provides hot board swapping. |
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