Table of Contents
Advertisement
BASE UNIT
RECEIVER
1. Sensitivity 12 dB SINAD
2. Bandwidth at 6 dB down
3. Frequency Response
4. Distortion at 1 mV Input
5. S/N ratio at 1 mV RF Input
TRANSMITTER
1. RF Power at 50 Ω Load
2. Modulation Sensitivity (Tel Line Input −15 dBm)
3. Frequency Response
4. Frequency Tolerance
TELEPHONE LINE
1. Off-hook Impedance
2. Off-hook DC Resistance
3. Minimum Ringer Input Level
TELEPHONE DIAL UNIT
1. PULSE DIALING
a. Dialing Rate
b. Make Ratio
2. DTMF DIALING
a. DTMF Frequency
Row 1
Row 2
Row 3
Row 4
Column 1
Column 2
Column 3
b. Signal Level on Single Tone
Low Group
High Group
c. High Group Component/
Low Group Component Difference
Unit
µV
kHz
0.3 kHz
dB
3.0 kHz
dB
%
dB
dBm
kHz Dev
0.3 kHz
dB
3.0 kHz
dB
Hz
(at 1 kHz)
ohm
(DC 40 mA)
ohm
(at 20 Hz)
Vrms
10 pps
pps
10 pps
%
Hz
Hz
Hz
Hz
Hz
Hz
Hz
dBm
dBm
dB
— 50 —
Nominal
Limit
0.6
17
−3.5
−7.5 ~ +0.5
−5
−9 ~ −1
2
66
−6
−11 ~ −1
±3
±2 ~ ±4.2
−4 ~ +4
0
−4 ~ +4
0
±600
±1500
1000
230 ~ 1570
230
100 ~ 300
23
10
8 ~ 11
40
36 ~ 42
697
687 ~ 707
770
759 ~ 781
852
840 ~ 864
941
927 ~ 955
1209
1191 ~ 1227
1336
1316 ~ 1356
1477
1455 ~ 1499
−7
> −10
−5
2
0 ~ 4
1.5
12
7
60
40
> −8
Advertisement
Table of Contents
