Name: BLOCK TELEPHONE WITH DYNAMIC INSETS
Brand: EPSILON ELECTRONIC EQUIPMENT AND COMPONENTS PRIVATE LIMITED
Availability: MadeToOrder

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Highlights at a glance

✓Category: Signalling Equipment
✓Made in Kushaiguda Hyderabad, TG, India
✓Certified: ISO 9001:2008, ISO 9001:2015

About this item

Two-part design for flexible installation and use.
Handset made of durable ABS Plastic with a Metallic Hook Clamp.
Features Electro Dynamic Transmitter and Receiver Insets for clear audio.
Includes a PTT Switch and 6 Way Coiled Cord.
Induction Coil / Amplifier Box made of robust Mild Steel.
Achieves required Send and Receive Levels for effective communication.
Barrier Terminals provided for easy connection of lines and HMT.

Description

The BLOCK TELEPHONE has Two Parts : The Handset is made of ABS Plastic and has a Metallic Hook Clamp. It has Electro Dynamic Transmitter and Receiver Insets. It has a PTT Switch and 6 Way Coiled Cord Terminated with ‘U’ Clips to be connected to the Induction Coil / Amplifier Unit. 1. The Induction Coil / Amplifier Box is made of Mild Steel, is kept beside the Telephone and can be fixed with 4 Screws rigidly. It has an Induction Coil with Trans and Receive Amplifier to achieve the required Send and Receive Levels. Barrier Terminals are provided to connect the lines and the HMT.

Specifications

Power Supply: 4.5V DC Nominal
Insulation Resistance @ 500V DC: 10M Ω between all wires in the terminal strip and body
Send Level at -44dB (5mV) and 1KHz across mic terminals: 0dB (774mV) min. across line terminals (600 Ω)
Side Tone: < -18dB (100mV) across Receive Terminals
Receive Efficiency at -12dB and 1 KHz across line terminals: > -24dB (100mV) across Receive Terminals
Insertion Loss: < 0.5 dB Listen condition, < 1.5 dB Talk condition
STATUS: PART-I