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Priori t y of Melody Ou t pu t
There are five kinds of methods to produce melody outputs. Priority of melody output for
different operations shall be as follows:
(1) Channel 1 output select switch (2) Channel 2 output select switch,
(3) Channel 1 program (4) Channel 2 program
(5) Interrupt input (annunciation of visitor)
R e n/ ac in g t h e b at t e r y
I"'
� ; 1
Remove the battery cover.
Replace the old battery with
a new one and put the
battery cover back on.
Use a rechargeable nickel
cadmium battery TD73602457.
2J'
Insert the battery connector.
*
Normal life of a nickel-cadmium
battery is approx. 5 years.
After replacement, the old
unwanted battery should be
taken in to nickel-metal-hydride
battery recycle cooperating
stores instead of disposal to
utilize resources.
Useful life
Average useful life under normal environment is as follows:
• Number of contact make and break : 50 thousand times (resistanc e load: 250VAC, SA}
• Power failure back-up battery
Whenever the item described
one.
Besides, due to the properties of internal electronic circuit, the higher the temperature, the
shorter the useful life becomes.
C o n t a c t y o u r dea ler orc o n tra c t o rto
order a new battery.
Battery cover
: 5 years (temperature of 20
65%}
above
comes faster, it is recommended to replace with a new
-2 5 -
'-----�
� Nickel-meta l-hydride
°
C, relative humidity of
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