B&K 2250 Light, User Manual, Page: 18 / 208

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2250 Light – User Manual
10) LAN Socket: Connect a LAN cable to synchronise measurement and setup data with a
host PC over a Local Area Network
11) USB A Socket: Connect to printers or other external USB devices
2.3.1 Description of Inputs and Outputs
Top Socket
See item 16 in Fig.2.1.
This 10-pin LEMO connector is the microphone input for 2250 Light. Microphone Type 4950
(including Preamplifier ZC-0032) is normally connected directly to this connector. If required,
however, one of two microphone extension cables (AO-0697-D-030, 3 m and AO-0697-D-100,
10 m), can be fitted between the preamplifier and the top socket, to extend the distance to the
desired length.
USB Interface
See item 1 in Fig.2.2 and items 1 and 11 in Fig.2.3.
The USB Interface provides high-speed direct communication via your PC’s USB port to
synchronise measurement and setup data with a host PC.
– Hardware versions 1 – 3: Use the supplied Mini USB Cable AO-1476
– Hardware version 4 (G4): Use the supplied Micro USB Cable AO-1494
Connect to a Printer or External Device via USB
For hardware versions 1 – 3, use the supplied Adaptor AO-0657 to connect to a printer that
supports PCL
®
language via the USB socket.
For hardware version 4 (G4), use the standard USB Type A socket (item 11 in Fig.2.3) on the
analyzer to connect to printers or other external USB devices.
Earphone Socket
See item 2 in Fig.2.2 and Fig.2.3.
The 3.5 mm minijack earphone socket enables the instrument to be connected to a set of
headphones/earphones, for reviewing recorded comments or for monitoring the measured
sound. Use the optional Earphones HT-0015.
External Power
See item 3 in Fig.2.2 and Fig.2.3.
2250 Light is powered by an internal rechargeable battery pack. An indication of available
charge is shown by the battery icon
at the bottom of the screen. If the charge remaining is
low or empty, the batteries can be recharged by connecting Mains Power Supply ZG-0426 or
ZG-0429 to the ‘Ext. Power’ socket. When the power supply lead is connected, the
icon will be displayed in place of the battery icon.