ET-547/557 Cordless Telephone
(430-1047/57)              Specifications             Faxback Doc. # 19947

MEASUREMENT CONDITIONS

1.  Standard Voltage:

    Handset: DC 3.6 V +/- 0.025 V
    
    Base:  AC 120 V +/- 3 V 60 Hz

2.  Temperature: 77 degrees F  (25 degrees C)

3.  Channel:    CH    Handset (TX Frequency)     Base (TX Frequency)

                  1       49.670 MHz                 46.610 MHz
                  2       49.845 MHz                 46.630 MHz
                  3       49.860 MHz                 46.670 MHz
                  4       49.770 MHz                 46.710 MHz
                  5       49.875 MHz                 46.730 MHz
                  6       49.830 MHz                 46.770 MHz
                  7       49.890 MHz                 46.830 MHz
                  8       49.930 MHz                 46.870 MHz
                  9       49.990 MHz                 46.930 MHz
                 10       49.970 MHz                 46.970 MHz
                 11       48.760 MHz                 43.720 MHz
                 12       48.840 MHz                 43.740 MHz
                 13       48.860 MHz                 43.820 MHz
                 14       48.920 MHz                 43.840 MHz
                 15       49.020 MHz                 43.920 MHz
                 16       49.080 MHz                 43.960 MHz
                 17       49.100 MHz                 44.120 MHz
                 18       49.160 MHz                 44.160 MHz  
                 19       49.200 MHz                 44.180 MHz
                 20       49.240 MHz                 44.200 MHz
                 21       49.280 MHz                 44.320 MHz
                 22       49.360 MHz                 44.360 MHz
                 23       49.400 MHz                 44.400 MHz
                 24       49.460 MHz                 44.460 MHz
                 25       49.500 MHz                 44.480 MHz

4.  Telephone Line Voltage/Load:  DC 48 V +/- 2 V/600 Ohm

5.  Ring Frequency:  20 Hz

6.  Ring Duration:  2 sec ON, 4 sec OFF

7.  Standard Modulation:  1 kHz +/- 3 kHz Dev.

8.  Secure Code:  65536 Combination

9.  Method of Measurement:  According to EIA Standard, RS-316A

10. Portable RX Load:  150 Ohm

OPERATING TEMPERATURE

Operating Temperature:  14 degrees F~122 degrees F
                      
                      (-10 degrees C~50 degrees C)

BASE UNIT

RECEIVER                                UNIT    NOMINAL         LIMIT

1. Sensitivity 12 dB SINAD                uV        0.5           1.5

2. Bandwidth at 6 dB down                kHz       +/-9          +/-6

3. Frequency Response  0.3 kHz            dB         -2         -7~+1
                       
                       3.0 kHz            dB         -5        -10~-2

4. Distortion at 1 mV Input                %          3             7

5. S/N ratio at 1 mV RF Input             dB         70            60
 
TRANSMITTER

1. RF Carrier Field Strength            uV/m         *1            *1
   
   (*1: Follow the Requirement of FCC Part 15.232 Paragraph C)

2. Modulation Sensitivity             kHz Dev      +/-3     +/-2~+/-4
   
   (Telephone Line Input -20 dBm)

3. Frequency Response  0.3 kHz            dB          0         -5~+3
                       
                       3.0 kHz            dB          0         -5~+3

4. Frequency Tolerance                    Hz    +/- 400      +/- 1500
 
TELEPHONE LINE UNIT NOMINAL LIMIT

1. Off-hook Impedance  (at 1 kHz)        Ohm        850      500~1500

2. Off-hook DC Resistance (DC 40 mA)     Ohm        250       200~300

3. Telephone Line Output Voltage at Mod. dBm         -3          0~-6

4. Minimum Ringer Input Level (at 20 Hz)   V         24           <40
 
TELEPHONE DIAL UNIT

1. PULSE DIALING
   
   a. Dialing Rate  10 pps               pps         10      8.0~11.0

   b. Make Ratio    10 pps                 %         40         36~42

2. DTMF DIALING
   
   a. DTMF Frequency   
      
      Row 1                               Hz        697       687~707

      Row 2                               Hz        770       759~781

      Row 3                               Hz        852       840~864

      Row 4                               Hz        941       927~955

      Column 1                            Hz       1209     1191~1227

      Column 2                            Hz       1336     1316~1356

      Column 3                            Hz       1477     1455~1499

   b. Minimum Level on Single Tone
      
      Low Group                          dBm         -8          >-10
      
      High Group                         dBm         -7           >-8

   c. Maximum Level on Frequency Pair    dBm         -4            <0

   d. High Group Component/               dB          1           0~4
      
      Low Group Component Difference
 
HANDSET UNIT

RECEIVER                                UNIT    NOMINAL         LIMIT

1. Sensitivity 12 dB SINAD                uV       0.33           1.5

2. Bandwidth at 6 dB down                kHz       +/-9          +/-6

3. Frequency Response    0.3 kHz          dB         -2         -7~+1
                         
                         3.0 kHz          dB         -9        -14~-6

4. Audio Output Power at 1 mV Input
                         
                         High             mV         40         30~60
                          
                          Low             mV         13          8~20

5. Distortion at 1 mV Input                %          2             6

6. S/N ratio at 1 mV RF Input             dB         70            50

7. Leakage Ring Level at Ear Piece     dBSPL         80           120

8. Ringer Level at 30 cm from Ringer   dBSPL         80            75
                         
                         High          dBSPL         80            75
                          
                          Low          dBSPL         75            70
 
TRANSMITTER

1. RF Carrier Field Strength            uV/m         *1            *1
   
   (*1: Follow the Requirement of FCC Part 15.232 Paragraph C)

2. Modulation Sensitivity
   
   (at MIC Input 21 mV)              kHz Dev.    +/-3.0     +/-2~+/-4

3. Frequency Response    0.3 kHz          dB         -3          -8~0
                         3.0 kHz          dB          0         -5~+3

4. Frequency Tolerance                    Hz     +/-500       +/-1500

POWER CONSUMPTION

1. Base Unit 9 V DC (TEL LINE ON)         mA         70           100

2. Handset Unit
   
   a. Stand-by (average)                  mA       1.20          1.60

   b. In-use                              mA       37.0          42.0

   c. Battery Save mode                   mA       0.10          0.30

Battery Low Light:     Turn-on Level 3.2 to 3.5 V

Battery:               300 mAH (@ 1.2 V x 3 = 3.6)

Battery Pack:          NiCad, GPI, 3.6 V / 270 mA

Battery Standby Time:  One week based upon two second ringer delay.

Mode Switch:           DTMF-Pulse (10 pps) Selectable

Memory:                10 Memories +3 speed dials (Handset)

REQUIREMENTS COMPLIANCE

Unit is designed to fully meet with UL1459 and FCC Rules, Part 15 and 68.

NOTE:  Nominal specs represent the design specs.  All units should be able 
       to approximate these - some will exceed and some may drop slightly 
       below these specs. Limit specs represent the absolute worst condition 
       that still might be considered acceptable; in no case should a unit 
       fail to meet limit specs.


(YO/all-06/27/96)

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