Miscellaneous Projects » Mobile (in)Security

= Ericsson Mini-Link =

Ericsson Mini-Link is a series of commercially very successful microwave links.

They are used world-wide for back-hauling GSM BTS and UMTS Node-B, i.e. for the

A-bis and IuB-links.

Every microwave link is a point-to-point link.

Each side of the link has an IDU (In Door Unit) and ODU (Out Door Unit).

=== IDU ===

The IDU is responsible for transmitting and receiving at the respective microwave frequency (normally 7...38GHz).

In the Mini-Link system they are most commonly they are called MMU.

There are different types of MMUs, representing the different link speeds of the microwave link, e.g.

 * MMU 34+2 (1 E3 link at 34 Mbps plus 1 E1 link for mgmt)

 * MMU 4x2 (4 E1 links at each 2 Mbps)

The MMU has connections for the data links (E1, E3, STM-1, etc.) as well as a coaxial wire connecting it with the

ODU.

=== ODU ===

The ODU is contains the actual modem that modulates the E1, E3 or STM-1 link onto the IF (Intermediate Frequency)

which is put on the coaxial link towards the ODU.

Conversely, on a different IF, there is the down-link from the ODU towards the demodulator/decoder in the IDU.

In the Mini-Link system, the ODU is commonly called RAU (Radio Access Unit).

== Mini-Link Equipment that we have ==

=== RAU ===

==== 15 GHz ====

||1||RAU 15/13||LaForge||

||1||RAU 15/16||LaForge||

==== 26 GHz ====

||1||RAU 26/24||LaForge||

||1||RAU 26/29||LaForge||

==== 23 GHz ====

||1||RAU2 M 23/77||LaForge||

||1||RAU2 M 23/79||LaForge||

=== MMU ===

||3||MMU 34+2||LaForge||

=== SMU ===

||2||SMU 16x2||LaForge||