3com WX1200 3CRWX120695A Manuel D’Utilisation

A Mesh Portal MAP can be configured to emit link calibration packets to 
assist 

with positioning the Mesh AP. A link calibration packet is an 

unencrypted 802.11 management packet of type Action. When 
enabled on a MAP, link calibration packets are sent at a rate of 5 per 
second.

The MP-620 is equipped with a connector to which an external RSSI 
meter can be attached during installation. When an RSSI meter is 
attached to an MP-620 and a calibration packet is received, the MP-620 
emits a voltage to the RSSI meter proportional to the received signal 
strength of the packet. This can aid in positioning the MP-620 where it 
has a strong signal to the Mesh Portal AP.

To enable link calibration packets on a MAP radio, use the following 
command:

set ap num radio num link-calibration mode {enable | disable}

Only one radio on a MAP can be configured to send link calibration 
packets. Link calibration packets are intended to be used only during 
installation of MAPs; they are not intended to be enabled on a continual 
basis.

After you have configured the Mesh AP with mesh services settings, 
detach the 

AP from the wired network and place it in the desired 

location. The Mesh Portal AP must be within radio range of the Mesh 
AP.

If the Mesh AP is an MP-620, you can configure the Mesh Portal AP to 
emit link calibration packets, then connect an RSSI meter to the RSSI 
connector on the MP-620. You can use the readings from the RSSI meter 
to gauge the strength of the signal from the Mesh Portal AP, and place 
the Mesh AP in a location with a strong signal.