Rion NL-42A, Instruction Manual, Page: 26 / 154

8
Controls and Functions
Bottom view
Bottom cover
This cover protects the connectors on the bottom during transport or storage.
Removing the cover gives access to the connectors shown above.
Important
To keep the water and dust resistant performance,
close tightly the bottom cover of the unit.
DC IN connector
The optional AC adapter NC-98 series can be connected here for powering
the unit from an AC outlet (100 V to 240 V AC). The optional battery pack
BP-21A can also be connected here.
Important
To prevent the risk of damage, do not use any
AC adapter and battery pack other than the
specifi ed type.
SD card slot
The SD memory card can be inserted in this slot.
I/O connector
Serves for RS-232C connection (including printer) or a comparator signal is
output here.
AC OUT connector
An AC signal corresponding to frequency weighting is output here.
DC OUT connector
A DC signal corresponding to sound pressure level is output here.
USB connector (mini B)
Serves for connection to a computer.
DC IN
5-7 V
I/O
AC OUT DC OUT USB
SD
AC OUT
connector
DC OUT
connector
USB connector
(mini B) Bottom cover
DC IN connector
SD card slot
I/O
connector