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Service interface/ connection to the NET 1 network system
The service interface (DATA A/B) ¹ is only required for servicing purposes.
In addition, the interface can also be used for connecting the
transmitter to the NET 1 network system. For detailed information,
please refer to the user manual of the NET 1.
EK 300 IEM G2 receiver
Inserting and replacing the batteries
For powering the EK 300 IEM G2 receiver, two 1.5 V AA size batteries are
required.
̈ Press the two release buttons µ and open the battery compartment
cover ¾.
̈ Insert the two batteries as shown in the diagram on the left. Please
observe correct polarity when inserting the batteries.
̈ Close the battery compartment. The battery compartment cover ¾ locks
into place with an audible click.
Inserting and charging the accupack
The receiver can also be powered via the rechargeable Sennheiser BA 2015
accupack. Insert the accupack into the battery compartment as described
above.
The receiver has two charging contacts ´ and a sensing contact on its short
sides. The accupack can be recharged while remaining in the receiver. Insert
the receiver into the L 2015 charger (see user manual of the L 2015 charger).
Note:
For accupack operation of the receiver, only use the BA 2015 accupack In
order to ensure optimum operational reliability. For charging the
accupack, only use the L 2015 charger. Both the accupack and the charger
are available as accessories.
The accupack is fitted with an integrated sensor which is – via a third
contact – monitored by the electronics of the receiver and the charger.
The sensor is necessary for the following control purposes:
y The taking into account of the different voltage characteristics of
primary cells (batteries) and accupacks. The battery status indications
on the displays, the transmission of transmitter battery status
information to the rack-mount receivers and the switch-off thresholds
at the end of the operating time are corrected correspondingly. Due to
the missing sensor, individual rechargeable battery cells will not be
identified as accupacks.
y The monitoring of the accupack temperature during charging in the L
2015 charger.
y The prevention of improper charging of inserted primary cells
(batteries). Due to the missing sensor, individual rechargeable battery
cells will also not be charged in the L 2015 charger.
¹
µ
¾
¾
´
ew300_350_IEM_INT.book Seite 17 Freitag, 7. März 2008 8:55 08