TAD-1009 Digital Telephone Answering System
(430-0781)                 Specifications             Faxback Doc. # 34348

Test Condition

Voltage Supply: .................................................. 12V DC
Battery Voltage: .................................................. 9V DC
Telephone Line Impedance: ...................................... 600 Ohms
SP Impedance: .................................................... 8 Ohms

PARAMETERS               UNIT    NOMINAL     LIMIT     REMARKS

First setup time:........Sec.......10.........<10......After power connected

Answer after no.
of rings coming.:........No.........4...........9......Program

Remote turn on
after ring coming:.......No........12..........12 

Record time:.............Minute....13..........>10

Ring input voltage
          (minimum):.....V.........30..........<40.....Freq. = 20Hz

Recording sensitivity:

Line output level(OGM):..dBm......-12..........<-9.....-86dBm I/P at micro-
                                                       phone
                 (ICM):..dBm......-15..........>-18....-30dBm I/P on line

S/N ratio at 1kHz:.......dB........33..........>28

DTMF min. level to
                active:..dBm......-40.........<-30

DTMF detectable:.........ms.......100.........<2000

VOX sensitivity:.........dBm......-45......<-40 & >-50

VOX operating time:......Sec........7.........+/- 2

Minimum line inter-
rupted time:.............ms.......350.........+/- 50

Invalid time for CPC:....Sec......2.5.........+/- 0.5 

Frequency response
          (OGM) 300:.....dB......-6.5.........>-10
                 3k:.....dB......-5.5.........>-10
          (ICM) 300:.....dB........-7.........>-10
                 3k:.....dB........-5.........>-10

Speaker output power
         (< 10% THD):....mW.......180..........>100

Accustic S/N ratio:......dB........35...........>28

On-Line DC resistance:..Ohm.......280..........<400....Loop Current = 20mA

Off-Line leakage
           current:.....mA.......<0.1..........<0.5....130VAC + 105VDC

Return loss 200-3400Hz:.dB.........19............>7

Power supply current:...mA........160..........<230

Battery current
  at standby mode:......uA.........<1...........<10

  at power down mode:...mA..........7...........<25

Battery low indicator 
              "LO":......V........7.8.........<+/-0.5

Maximum Outgoing Message Length: ............................... 1 Minute
Maximum Incoming Message Length: ............................... 1 Minute
Total Digital Recording Length: .............................. 16 Minutes
VOX is set for 7 seconds Silence.

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

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety
characteristics.  These characteristics often pass unnoticed and the protec-
tion afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc.  Replacement parts that
have these special safety characteristics are identified in this manual and
its supplements;  electrical components having such features are identified
by / ! \ in the schematic diagram and the parts list.

Before replacing any of these components, read the parts list in this manual
carefully.  The use of substitute replacement parts that do not have the
same safety characteristics as specified in the parts list may create shock,
fire or other hazards.

Specifications are typical; individual units might vary.  Specifications
are subject to change without notice.



(BR/EB 10/1/96)