Sennheiser L 2021-40 User Manual
Tourguide Charger
L 2021-40
Instruction manual
Contents
Thank you for choosing Sennheiser!
We have designed this product to give you reliable operation over many
years. Over 60 years of accumulated expertise in the design and manufacture of high-quality electro-acoustic equipment have made Sennheiser
a world-leading company in this field.
Please take a few moments to read these instructions carefully, as we want
you to enjoy your new Sennheiser products quickly and to the fullest.
Contents
Important safety instructions ...................................................................... 2
Delivery includes ............................................................................................ 4
The L 2021-40 charger .................................................................................. 4
Product overview ........................................................................................... 5
Indications and displays on the charger ......................................................... 6
Putting the charger into operation ............................................................. 7
Placing the charger on a table or cabinet ....................................................... 7
Installing the charger .......................................................................................... 8
Connecting the charger to a PC ....................................................................... 10
Connecting the charger to and disconnecting it from the mains ............ 10
Using the charger ........................................................................................ 11
Switching the charger on/off .......................................................................... 11
Charging the receiver rechargeable batteries .............................................. 11
Specifications ............................................................................................... 13
Accessories for the Tourguide system ...................................................... 14
Manufacturer Declarations ......................................................................... 15
DE
EN
FR
IT
ES
NL
1
DE
Important safety instructions
Important safety instructions
1. Read these instructions.
2. Keep these instructions. Always include these instructions when
passing the device on to third parties.
3. Heed all warnings.
4. Follow all instructions.
EN
FR
IT
ES
NL
5. Do not use the device near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with these
instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other devices (including amplifiers) that produce heat.
9. The device should be operated only from the type of power source
indicated on the mains plug. The device must only be connected to
properly grounded power outlets.
10. Protect the mains cable from being walked on or pinched, particularly
at plugs, convenience receptacles, and the point where it exits from
the device.
11. Only use attachments/accessories specified by Sennheiser.
12. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the device.
When a cart is used, use caution when moving the cart/device combination to avoid injury from tip-over.
13. Unplug the device during lightning storms or when unused for long
periods of time.
14. Refer all servicing to qualified service personnel.
15. Servicing is required if the device has been damaged in any way, such
as mains cable or plug damage, liquid has been spilled, objects have
fallen inside, the device has been exposed to rain or moisture, does not
operate properly or has been dropped.
16. To completely disconnect the device from the AC mains, disconnect the
mains plug from the AC receptacle.
17. WARNING: To reduce the risk of fire or electric shock, do not expose the
device to rain or moisture.
18. Do not expose the device to dripping or splashing and ensure that no
objects filled with liquids, such as vases or coffee cups, are placed on
the device.
19. The plug of the mains cable shall remain readily operable and easily
accessible.
2
Important safety instructions
Hazard warnings on the rear of the charger
The label shown on the left is attached to the rear of the charger. The
symbols on this label have the following meaning:
This symbol is intended to alert the user to the presence of uninsulated
dangerous voltage within the device’s enclosure that may be of sufficient
magnitude to constitute risk of fire or electric shock.
This symbol is intended to alert the user to the risk of electric shock if the
device is opened. There are no user serviceable parts inside. Refer servicing
to qualified personnel only.
This symbol is intended to alert the user to the presence of important
operating and maintenance instructions in the literature accompanying
this device.
Overloading
Do not overload wall outlets and extension cables as this may result in fire
and electric shock.
If you switch on several chargers at the same time, you can blow the fuse
due to the high switch-on voltage! Therefore, never switch on more than
three chargers at the same time, e.g. via a switchable multi-outlet power
strip.
DE
EN
FR
IT
ES
Replacement parts
When replacement parts are required, be sure the service technician has
used replacement parts specified by Sennheiser or those having the same
characteristics as the original part. Unauthorized substitutions may result
in fire, electric shock, or other hazards.
Safety check
Upon completion of any service or repairs to this device, ask the service
technician to perform safety checks to determine that the device is in a
safe operating condition.
Intended use of the device
Intended use of the device includes:
• using the device for professional purposes,
• having read these instructions especially the chapter “Important safety
instructions” on page 2,
• using the device within the operating conditions and limitations
described in this instruction manual.
“Improper use” means using the device other than as described in these
instructions, or under operating conditions which differ from those
described herein.
NL
3
Delivery includes
Delivery includes
1 L 2021-40 charger
1instruction manual
DE
EN
FR
IT
ES
NL
1 CD-ROM with:
– the instruction manual of the L 2021-40 charger
– the “Conference Control” software
– the instruction manual of the “Conference Control” software
You additionally require:
1mains cable
1network cable
The L 2021-40 charger
The L 2021-40 charger is part of the Tourguide 2020 D system. The
Tourguide 2020 D system offers optimum digital speech transmission for
guided tours e.g. in factories or museums and during conferences. The
use of RF transmission allows freedom of movement for all members of
the group. Six fixed transmission frequencies in “Tourguide mode” and
eight transmission frequencies in “Conference mode“ offer high flexibility
and adaptability. The L 2021-40 charger simultaneously recharges up to
40 HDE 2020 D stethoset receivers with their built-in rechargeable
batteries. The channel copy function lets you set all receivers to the same
channel at the press of a button.
In addition, the charger allows you to directly configure the stethoset
receivers via a PC. You can connect up to 125 chargers to a single PC,
allowing you to simultaneously configure up to 5000 receivers.
Additional features of the charger:
• Quick charge of receiver rechargeable batteries
• Highest possible operational reliability, since temperature and voltage
of the rechargeable batteries are monitored during charging
4
Loading...