2 WIRE TALK BACK SYSTEM FOR I.B.S.

SCOPE :-

Previously, it was very difficult to communicate at the time of signal failures. The Motorman could not contact the Station Master to know the causes of signal failures & for further instructions. A man from nearby station had to go to the halted train and convey the messages. Thus the trains were delayed for a long period. To avoid this delay & to have instant direct Communication with each other, 2 Wire Talk Back System for IBS was developed.

FEATURES :-

1. Solid State circuitry working on 110V AC OR 12V DC OR 24V DC is incorporated.
2. Compact & robust Master Cabinet is of M.S. & a Slave Cabinet duly powder coated to protect from atmospheric conditions.
3. Glassy Epoxy Printed Circuit Boards with moisture proof special lacquer & green masking to protect from hot sun as well as from heavy rain.
4. “Press to Talk” switches for instant communication are used.
5. Sensitive Microphones & 4″ Speakers for clear reception are used.
6. All switches are sturdy & of reliable quality.
7. Components are of high standard quality & used only after fully tested.
8. Communication between Master & Slave is up to 10 Kms apart.
9. External noise to conversation [signal] is very low.
10. Hand free operation for both the units for receiving signals only.
11. Terminal strips of industrial – high grade – screw fixing type of 10 amp Capacities.
12. Master Unit is of Table-Top model & Slave unit is of Pole mounting type [hanging arrangement to the Pole is provided]. The Slave unit’s cover protects the water from getting inside the unit.
13. Only “Press to Talk” Switches be operated for conversation.
14. A visual indication [Red LED] is provided for mains supply to the Master Unit.
15. The Master Unit hears the conversation from Slave Unit even though Master Unit’s Power Supply is OFF.
16. Master Unit has to “Switch ON” his unit to talk to Slave Unit before operating the “Press to Talk” Switch.

TECHNICAL SPECIFICATIONS:-

 For MASTER & SLAVE:

End.