T&D RTR-500MBS-A Getting Started Manual - page 12
12
How to Remove the Battery Cover
While pressing down on the triangular mark ( ), slide the cover to the bottom of the unit
( ). Lift off the cover ( ).
3.
Lightly slide the cover of the card holder to unlock it. Slowly lift up
the cover to its open position.
Unlock
4.
Making sure that the IC (gold area) is facing out, insert the SIM card
into the card holder until it fits completely.
Notch
5.
Close the card holder and slide the cover to lock it.
Lock
If the cover is not properly locked, it may cause insufficient contact with
the IC and result in a communication error.
6.
Insert the batteries, making sure they are in the proper direction
( / ), then close the battery cover.
Keeping batteries in the unit allows a backup source of power in the event
of power failure. If running only on batteries, the estimated battery life is
about 2 days. For longer continuous operation, please use an external
power source.
• Leaving alkaline batteries in the unit for a long period of time may cause battery
leakage and corrosion. When using as a backup source of power, we recommend
that the batteries be changed every few years.
• Make sure to use new batteries of the same kind.
• It is not necessary to set up an external power source before placing the device to
the place it will be used. Please see [STEP4: Installing the Device] > [Connecting
to an External Power Source] (p.22)