MINI-LINKEandEMicro
6.1.12 Service Channels
Two service channels per radio terminal (applicable for MINI-LINK E) are
available on the optional SAU. The service channels have a digital interface
(ITU-T Rec G.703) or an analog interface, (ITU-T Rec G.712) 2 wire (telephone)
and 4 wire (branching).
The digital service channels are used for connection of external equipment
and the analog service channels are used for speech communication between
MINI-LINK sites.
SAU Exp 1 offers two digital service channel interfaces per radio terminal and
SAU Exp 2 offers one digital and one analog service channel interface per
radio ter minal.
6.1.13 Repair
Replacement of the faulty unit, outdoors or indoors, is done on site.
A new setup needs to be done for replaced indoor units and MINI-LINK E Micro.
Indoor units can be set to factory del ivered configuration (factory setup) by
means of a special plug or by M SM. The preset plug is connected to the O&M
port on the unit. Setup of MINI-LINK E M icro can only be done by MSM .
When a RAU1 or RAU2 has been replaced, no new setup has to be performed
because the MMU automatically holds backup information.
6.1.14 Local Supervision Interface
The local supervision interface consists of LEDs on the outdoor radio unit for
fault detection.
Additional possibilities for MINI-LINK E:
• LEDs on the indoor units for fault detection.
• Display and switches on the MMU front for local failure presentation,
monitoring and control. The local control can be turned off by MINI-LINK
Netman or MSM.
6.1.15 Software Upgrading
Software upgrading can be made from remote at the same time on all units
of the same type in a network by using MINI-LINK Netman or MSM. It is a
background process allowing t he user to have full access to the management
system, with no traff ic disturbances.
It is also possible to upgrade software locally on site.
109
AE/LZT 110 2012 R8C 2002- 03-04
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