Technical Specifications

* No. of Trunk Lines : Two Nos.
* No. of Extension Lines : Four Nos.
* Power Requirement
– I/P Voltage should be 220 +- 20 Volts AC, 50Hz, Single Phase

– DC power supply O/P is 5 Volt /0.5 amp, 12 Volt /0.5 amp, 24 Volt /1 amp
* Environmental Conditions
– Surrounding temperature of 0-40° C (for optimum equipment life we recommend that
Temperature is maintained between 25-30 °Celsius.
– Surrounding Humidity of 10%- 90%
* Cable Requirement
– For Single line telephone Station cable, single pair, Station loops
– Resistance 600Ωsincluding telephone instrument.
* Communication Links : CMOS cross point switch
* Dialing Specifications
1) Pulse Dial
a) Speed : 10pps
b) Ratio : 800ms
2) DTMF:
a) Frequency range:
High Group : 1209Hz, 1336Hz, 1477Hz
Low Group : 697Hz, 770Hz, 852Hz, 941Hz
b) Memory dial:
Two types : Last number redial & speed dial
System speed dial : 100 numbers
* DTMF Frequency Range
– High Group : 1209Hz, 1336Hz, 1477Hz
– Low Group : 697Hz, 770Hz, 852Hz, 941Hz
* System Configuration : The cards are:

– CPU Card: CPU card is microcontroller based logic card for sending and receiving information form line interface to control the operation.
– Line Card: Line card is a trunk & Ext. line interface card
– PS Card: Power supply card for providing different DC voltages to the CPU and line card.
– Cables: 1. 40 pin Flat cable between CPU and line card.
2. 6 pin Relimate cable between CPU and power supply card.
* Telephone Instruments : Since the system features are best made use of with DTMF (Tone) instruments we recommend that you use only DTMF (Tone) or Tone/ Pulse switch able phones which are TEC/DOT approved.