ET-531 10-Channel Cordless Telephone
(430-1031) Specifications Faxback Doc. # 38314
GENERAL
Measurement Conditions:
Standard Line Voltage........................................... 120 +/- 3V
Temperature.................................................... 25 C +/- 5C
Audio Frequency.................................................... 1000 Hz
Telephone Line Input............................................... -18 dBm
Mic Input............................................................ 10 mV
Phone Line Impedance.............................................. 600 Ohms
All output measurement made across 150 ohm resistive load except those
marked telephone line output.
CORDLESS PHONE PORTION
Measurement Conditions
Standard Voltage
Portable Unit............................................ DC 3.8 V +/-0.1 V
Base Unit................................................... 120 Vac +/-10%
Temperature.................................................... 25 C +/-5 C
Channel Frequency:
Channel No. Handset Tx Base Tx
1 49.670 46.610
2 49.845 46.630
3 49.860 46.670
4 49.770 46.710
5 49.875 46.730
6 49.830 46.770
7 49.890 46.830
8 49.930 46.870
9 49.990 46.930
10 49.970 46.970
(Unit = MHz)
Standard Modulation................................. 1 kHz, +/-2.0 kHz dev.
Tel. Line Impedance.................... 600 ohms unless otherwise specified
REQUIREMENTS COMPLIANCE
Base unit is designed to fully meet with UL1459 and FCC rules parts 15 and
68. Handset is designed to fully meet with FCC rules part 15. Units are
designed to fully meet DOC/CSA requirement.
Operating temperature range.................................. -10 C - +50 C
Operating humidity range................. up to 70% at 40 C for a period of
not less than 8 hours.
Handset operating voltage.................................... 3.3 - 4.5 Vdc
Remote CPU memory retention voltage........................... 2.5 Vdc min.
Base unit operating voltage................................ 120 Vac +/-10 %
ESD: Unit must withstand electrostatic discharge with NO MALFUNCTION over
a range of 1 KV through 10 KV using a probe with a 330 ohm resistor
in series with a 150 pF capacitor and at 40% or less relative
humidity.
BASE UNIT
Receiver
Usable sensitivity (12 dB SINAD).................................... 0.5 uV
Usable 6 dB bandwidth........................................... 7 +/-2 kHz
Mod. accept. BW................................................. 7 +/-2 kHz
Spurious response.................................................... 60 dB
Image Rejection...................................................... 50 dB
Audio output 1 kHz +/-2 kHz deviation............................... -8 dBm
Audio distortion........................................................ 3%
Max. S/N ratio....................................................... 60 dB
Frequency tolerance................................................. 200 Hz
Frequency Response.................................... -1 +/-3 dB at 300 Hz
-6 +/-3 dB at 3000 Hz
Digital code sensitivity............................................ 0.3 uV
Digital code dev. sens. (at 100 uV)................................ 0.4 kHz
Radiated sensitivity................................................. 20 uV
Minimum RF input for Pulse/tone Dialing Accuracy.................... 0.6 uV
Carrier Detector sensitivity.............................. 6 +/-2 dB/SINDAD
Auto Standby in absence of carrier............................. 10 +/-1 sec
Transmitter
Xmit frequency tolerance............................................ 200 Hz
Mod. sens. for 2 kHz dev...................................... -18 +/-2 dBm
Xmit audio distortion at 2 kHz dev...................................... 3%
(no de-emphasis)
Mod. capability at 5% distortion............................ 5.5 +/-1.0 kHz
Xmit audio S/N (no de-emphasis)...................................... 30 dB
Harmonic and Spurious output......................................... 50 dB
Audio response......................................... 0 +/-2 dB at 300 Hz
0 +/-2 dB at 3000 Hz
Sidetone dev. at 1200 ohms......................................... 2.0 kHz
Digital Code dev............................................ 3.5 +/-0.5 kHz
Radiated Power Output................................................ 25 mV
REMOTE UNIT
Receiver
Usable sensitivity (12 dB SINAD).................................... 0.8 uV
Usable 6 dB bandwidth........................................... 7 +/-2 kHz
Mod. accept. BW................................................. 7 +/-2 kHz
Spurious response.................................................... 60 dB
Image response....................................................... 50 dB
Audio output at 1000 uV
Acoustical Output.......................................... 105 +/-3 dB/SPL
Electrical Output.............................................. 60 +/-10 mV
Audio distortion (1000 uV).............................................. 3%
Max. S/N ratio....................................................... 50 dB
Frequency tolerance................................................. 200 Hz
Frequency response..................................... 0 +/-3 dB at 300 Hz
-7 +/-3 dB at 3000 Hz
Digital code sensitivity............................................ 0.4 uV
Battery low beep output
Standby..........................................................+/-3 dBSPL
Talk.............................................................+/-3 dBSPL
Battery low beep rate.......................................... 15 +/-1 sec
Bell signal output (at 1 ft)...................................... 90 dBSPL
Autostandby in absence of carrier.............................. 10 +/-1 sec
Radiated sensitivity................................................. 24 uV
Transmitter
Xmit frequency tolerance............................................ 200 Hz
Mod. sens. for 2 kHz deviation....................................... 18 mV
Xmit audio distortion (no de-emphasis)................................. 3 %
Mod. capability at 3% Dist...................................... 5 +/-1 kHz
Xmit audio S/N....................................................... 30 dB
Harmonic Spurious output............................................. 80 dB
Audio response........................................ -3 +/-3 dB at 300 Hz
0 +/-3 dB at 3000 Hz
Digital Code dev............................................ 3.5 +/-0.5 kHz
Radiated Power Output................................................ 25 mV
Off Hook Impedance.................................................... 8 dB
Return loss against 600 ohm 1 kHz
Off Hook DC resistance............................................. 170 ohm
Ring Threshold, 16/20 Hz sine wave.................................. 34 Vrm
square wave............................... 40 Vrms
Bell Tapping Immunity Short Loop.................................... 60 Vdc
Long Loop.................................... 110 Vdc
Break ratio........................................................... 60 %
Hook switch flash............................................. 700 +/-50 ms
DTMF Tone (Low group)
Digits 1 and 2.............................................. 697 +/-1.2% Hz
Digits 4 and 5.............................................. 770 +/-1.2% Hz
Digits 7 and 8.............................................. 852 +/-1.2% Hz
Digits * and 0.............................................. 941 +/-1.2% Hz
Low Group Level................................................... -7.5 dBm
DTMF Tone (High group)
Digits 1 and 4............................................. 1209 +/-1.2% Hz
Digits 2 and 5............................................. 1336 +/-1.2% Hz
Digits 3 and 6............................................. 1477 +/-1.2% Hz
High Group Level.................................................. -5.5 dBm
DTMF Tone Level, loop current range 20 mA - 80 mA
Max Level per pair.................................................. -4 dBm
Max Level diff. between Hi and Low.................................. 2.0 dB
On-Hook Leakage at 100 Vdc............................................ 6 uA
Pulse Dialing
Speed............................................................... 10 pps
Break ratio......................................................... 61 DCT
Interdigit Interval................................................. 800 ms
Auto/Redial Tone Duration........................................... 100 ms
Interdigit......................................... 100 ms
R.O.L.R.................................................... +54 dB at 0 kft
+58 dB at 15 kft
T.O.L.R.................................................... -41 dB at 0 kft
-32 dB at 15 kft
POWER SUPPLY
Power Drain
Base Unit, Talk..................................................... 120 mA
Portable Unit Standby............................................... 2.5 mA
In Use................................................. 30 mA
Battery Low LED turn On..................................... 3.4 +/-0.1 Vdc
Battery charging current: at 3.8V Battery Voltage............... 40 +/-5 mA
Specifications are typical; individual units might vary. Specifications are
subject to change and improvement without notice.
(km-05/12/1997)
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