Overall Dimensions
Width
Height (over handset)
Depth (over handset)
Handset cord (normal)
Line Cord
Weights
Basic Instrument
Total Weight (packed)
Environmental Conditions:
Temperature (operational)
Temperature (storage)
Humidity (classification 21)
Supply Voltage:
Direct from exchange
Line conditions
Speech Performance
Send and receive sensitivities
Regulation
Sidetone
Frequency responses
Keypad:
10 keys (LD Version)
1 2 keys (MF Version)
Recall
Microelectronics
Loop-Disconnect Dialling:
Storage
TECHNICAL DAT A
150mm (KT1) 150mm (KT4)
100mm (KT1)
90mm (KT4)
220mm (KT1) 225mm (KT4)
250mm (normal), 1. 7m (extended)
3m
672gm
}
Nominal. Weights between variants
9 50gm
may vary slightly
-10°C to 50°C (to BS2011)
-20°C to 60°C
9 5
%
relative humidity
a) 19V to 27V d.c. (24V nominal)
b) 40V to 52V d.c. (48V nominal)
c) 50V to 65V d.c. (60V nominal)
a) Suitable for use on lines of loop resistance in the range 0 to
1.25kohms, one leg at battery voltage, the other at OV, with
exchange voltages of 48V and 60V nominal
b) With exchange voltage of 24V nominal, suitable on lines of loop
resistance in the range 0 to 300 ohms
Set at internationally accepted levels, and controlled electronically
Applied within the integrated circuit to increase send and receive
sensitivity of the telephone as the line length increases
Well controlled over all line lengths
Tailored to suit speech transmission over local lines and trunk carrier
systems
Keys laid out to C.C.l.T.T. recommendations and are 2-shot
moulded for complete reliability
Supplied with earthloop recall, timed break recall or register recall
Single MOS-LSI circuit combines both signalling and transmission
functions
Storage capacity of 1 8 decimal digits provided. Cyclical storage
feature extends effective storage capacity
2
3513 300 05070
