7. Soft Switch
Field Service Ver. 2.0 Dec. 2008
72
FK-507
Adjustment / Setting
MODE
Factory setting bit
092 (PSTN1)
122 (PSTN2)
Bit:
7
6
5
4
3
2
1
0
0
1
1
1
0
0
0
0
HEX: 70
Bit
Feature
Logic
Description
0
1
7
Send V.29 echo protection
tone.
No
Yes
6
Send V.17 echo protection
tone.
No
Yes
5
Send V.33 echo protection
tone.
No
Yes
4
Select V.17 and V.33 car-
rier frequency.
Bit 4-3:
00
1800 Hz
3
01
1700 Hz
10
1800 + 1700 Hz
11
Not available
MODE
Factory setting bit
093 (PSTN1)
123 (PSTN2)
Bit:
7
6
5
4
3
2
1
0
1
0
0
0
1
0
0
0
HEX: 88 (For U.S.)
HEX: 40 (For Europe)
Bit
Feature
Logic
Description
0
1
7
Select timing for starting
CED sending.
Bit 7-6:
00
0 msec
Specifies time interval
from line connection to
starting sending CED.
(7 sec is provided for the
second dial.)
6
01
2000 msec
10
2500 msec
11
7 sec
5
Select CED frequency.
Bit 5-4:
00
2100 Hz
Specifies CED fre-
quency, or to prohibit
CED TX.
4
01
1080 Hz
10
1300 Hz
11
Not available
3
Process CED echo.
No
Yes
Specifies whether to process CED echo
at the intervals of 500 ms between CED
and initial identification.
2
Process incoming
command echo.
No
Yes
Specifies whether to process incoming
echo at the intervals of 500 ms between
when receiving an initial identification
and when sending the incoming com-
mand.
1
Control channel data rate. Bit 1-0:
00
1200 bps symmetry
0
01
1200 bps asymmetry
10
2400 bps symmetry
11
2400 bps asymmetry
Service Manual Y109
97
1-7
