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The CC unit incorporates a CMOS IC. Particular care is to be taken about its damage static electricity causes
when you make switch settings.
Lithium battery is used for a memory backup battery BAT-1, which maintains the important data stored in a
memory during power outage. A life span of the lithium battery largely varies depending on ambient
temperature and a space of time that the exchange was used. To be on a safe side, therefore, we suggest that
the battery be replaced every 3 years. Be sure to set up No. 24 programming again after its replacement.
1 Dial operations to select functions
(*1) General purpose control and PA paging are alternative functions. So dialing as to select general
purpose control will automatically deprive the system of the PA paging function.
(*2) Depress dial keys as shown in a parenthesis when the "tie-lined" exchange is the
EX-610/620/630.
(*3) Making initial settings puts the system in the "not available" mode.
7-2 Registration of each function
Functions
General purpose
control (*1)
Time out of paging (20 seconds)
No. 25 tie-line
No. 26 tie-line
BGM/alarm/time
annunciation (BI-20)
Speech message
hurry-up tone
Call forwarding
Dial operations
Available
Not available
(*2)
(*2)
– 22 –
Precautions