Owner's manual

272N TELEKOMUNIKACE a.s., www.2n.cz
®
Reset button function
– press the button quickly.Reset equipment
– press and hold the button until all the LEDs turn red.Restore factory values
Then release the button and wait until the SYSTEM LED flashes yellow. Now press
the button quickly to delete all the user settings.
– press and hold the buttonZero backup rechargeable battery life counter
until all the LEDs turn red. Then release the button and wait until the
POWER/BATTERY LED flashes yellow. Now press the button quickly. Perform this
function after replacing the backup rechargeable batteries with new ones only!
– press and hold the button until all the LEDsCheck system completeness
turn red. Then release the button and wait until the INTERNAL BUS LED flashes
yellow. Now press the button quickly to make the system supervise all the
installed equipment (splitters, Audio Units etc.) for proper connection and
function.
– press and hold the button until allDelete central unit software completely
the LEDs turn red. Then release the button and wait until the SYSTEM LED
flashes red. Now press the button quickly. CAUTION: after performing this
function you can only restore the normal function of the device using a PC!
USB Port Connection
Recommendation
Do not keep your PC connected for a long time unless necessary to reduce the
computer damage due voltage surge from the telephone line during storms, for
example.
Before You Start
CU installation conditions
The (hereinafter referred to as ) is not intended for outdoor use. Central Unit CU
Do not install the onto vibration-producing machines. CU
Install the vertically to allow air flow for cooling purposes (never cover the CU CU
with any cloth or install it in another closed box).
You may install the into the lift switchboard unless the temperature exceedsCU
the acceptable limit. Remember that a higher ambient temperature reduces the
life of backup rechargeable batteries in the .CU
It is recommended that the should be operated in the upright position withCU
the cable openings at the bottom. Such mounting position ensures the lowest
temperatures and thus the longest life of the rechargeable batteries. Horizontal
mounting is also possible. The upright position with the cable openings at the top
(upside down) is forbidden!
After mounting the check that the equipment is firmly fixed in place andCU
cannot come loose and drop down into the shaft.
Warning
during the warranty period.Do not open the CU
Open the only to replace after theCU the rechargeable batteries
warranty period.