4.Service Tables
99
NCU Parameters
The following tables give the RAM addresses and the parameter calculation units that the machine uses for
ringing signal detection and automatic dialing. The factory settings for each country are also given. Most of these
must be changed by RAM read/write (SP2-102), but some can be changed using NCU Parameter programming
(SP2-103, 104 and 105); if SP2-103, 104 and 105 can be used, this will be indicated in the Remarks column. The
RAM is programmed in hex code unless (BCD) is included in the Unit column.
• The following addresses describe settings for the standard NCU.
# RAM
Addr.
Function Remarks
CC 680500 Country/Area code for
NCU parameters
Use the Hex value to program the country/area code directly into
this address, or use the decimal value to program it using SP2-
103-001
Country Code List
Country/Area Decimal Hex Country/Area Decimal Hex
France 00 00 Asia 18 12
Germany 01 01 Japan 19 13
UK 02 02 Hong Kong 20 14
Italy 03 03 South Africa 21 15
Austria 04 04 Australia 22 16
Belgium 05 05 New Zealand 26 17
Denmark 06 06 Singapore 24 18
Finland 07 07 Malaysia 25 19
Ireland 08 08 China 26 1A
Norway 09 09 Taiwan 27 1B
Sweden 10 0A Korea 28 1C
Switzerland 11 0B Brazil 29 1D
# RAM
Addr.
Function Unit Remarks
01 6805B4 PSTN: Tx level from the modem -N – 3
dBm
SP2-103-002
02 680572 Acceptable ringing signal frequency:
range 1, upper limit
1000/ N
(Hz).
SP2-103-003
03 680573 Acceptable ringing signal frequency:
range 1, lower limit
SP2-103-004
04 680574 Acceptable ringing signal frequency: SP2-103-005
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