62
RECEIVER
1. Sensitivity 12 dB SINAD
with CCITT Filter
2. Frequency Response (Ref:1kHz)
0.3kHz
3.0kHz
3. Distortion at 1 mV RF Input
4. S/N ratio at 1 mV RF Input
with CCITT Filter
5. Selectivity (NQ20dB)
6dB Ban
6dB Bandwidth -
6. Image Rejection Ratio
SINAD 12dB with CCITT Filter
1st Image
2nd Image
7. Tel Line Output Level (600
Ω
Load)
8. Ringer Level at 30cm from Speaker (Bell input)
Ringer Frequency : 900Hz + 450Hz
TRANSMITTER
1. RF Power (50
Ω
Load)
2. Modulation Sensitivity Telline Input
3. Frequency Response (Ref:1kHz)
0.3kHz
3.0kHz
4. Frequency Tolerance (25°C)
5. Code Deviation
6. Distortion
7. Adjacent CH Power
(+)
(-)
8. S/N Ratio
with CCITT Filter
TELEPHONE LINE
1. Off-hook Impedance (at 1kHz)
2. Off-hook DC Resistance (DC 40mA)
3. On-hook Impedance 20Hz (75Vrms)
4. Minimum Ringer Input Level (at 20Hz)
5. Pulse Dialing
a. Dialing Rate (@10pps)
b. Make Ratio (@10pps)
6. DTMF Output (@600
Ω
Load)
a. DTMF Frequency
Row 1
Row 2
Row 3
Row 4
Column 1
Column 2
Column 3
b. Signal Level of Dual Tone
c. Signal Length
d. Interdigital Pause
SPEAKER PHONE
1. Microphone Sensitivity (-20 dBm TEL Output)
(Measured as soon as signal on)
2. Receiver Response Audio Output (-30 dBm TEL Input)
(Measured as soon as signal on)
UNIT
dBm
dB
dB
%
dB
kHz
kHz
dB
dB
dBm
dBspl
UNIT
dBm
dBm
dB
dB
Hz
kHz
%
dB
dB
dB
UNIT
OHM
OHM
kOHM
Vrms
pps
%
Hz
Hz
Hz
Hz
Hz
Hz
Hz
dBm
mSec
mSec
UNIT
mV
mV
NOMINAL
-115
-4.0
-3.0
1.5
70
15
15
35
55
-10
85
NOMINAL
-6.0
-20
0.0
-1.5
±0
8.0
1.5
55
55
35
NOMINAL
1000
250
25
30
10
39
697
770
852
941
1209
1336
1477
-3
100
100
NOMINAL
2.0
600
LIMIT
< -107
-8.0~0.0
-7.0~+1.0
< 5
60 <
10 <
10 <
30 <
30 <
-13~-7
75 <
LIMIT
-9.0~-3.0
-24~-16
-4.0~+4.0
-5.5~+2.5
-2500~+2500
< 11
< 5
50 <
50 <
30 <
LIMIT
500~1500
100~300
10 <
< 40
8~11
36~42
687~707
759~781
840~864
927~955
1191~1227
1316~1356
1455~1499
< 0
90 <
80 <
LIMIT
1.0~4.0
340~1050
BASE UNIT
Содержание FT-8939
Страница 2: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 9904 FT 8939 PUBLISHED IN JAPAN Sep 1999 ...
Страница 11: ...9 BLOCK DIAGRAMS Base Unit Main ...
Страница 12: ...10 Base Unit DSP ...
Страница 13: ...11 Handset ...
Страница 14: ...12 13 SCHEMATIC DIAGRAMS Base Unit Main ...
Страница 15: ...14 15 Base Unit Key ...
Страница 16: ...16 17 Handset ...
Страница 33: ...34 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...
Страница 34: ...35 Base Unit Key PCB ...
Страница 35: ...36 Handset Main PCB ...
Страница 36: ...37 38 WIRING DIAGRAMS Base Unit ...
Страница 37: ...39 Handset ...
Страница 40: ...42 Handset 7 8 4 1 16 17 17 5 10 15 11 12 2 9 6 13 14 3 17 MAIN PCB ASSY RF MODULE HANDSET ...
Страница 62: ......