TESCA

EPABX Trainer - Order Code 10946

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Description

Order Code: 10946
Name: EPABX Trainer

SPECIFICATION

EPABX Trainer is a Microprocessor based system designed to help the students to understand the basic concept and working of a Telephone Exchange. All the components are mounted on a single PCB in functional blocks and have various Test points to monitor all kinds of telephonic signals.

Specification

No. of Subscribers : Two DOT Lines, Four
Line Section Extension Lines : Opto Isolation for Trunk Lines and 4 Extension Lines.
Tone Generation: Dial Tone, Busy Tone, Ring Back Tone, Hold-on music etc.
CPU Section : 89E516RD Microcontroller based stored program control.
Memory : 72KB Program memory,
Speech Path 1KB RAM. : Fully Non- Blocking.
Loop Resistance
- Extension : 600 Ohms.
- Co-line : 1200 Ohms.
Cross Talk Attenuator : >70dBm.
Idle Channel Voice : >70 dBm.
Insertion Loss : Extension to Extension not Less than 60 dBm.
Extension to DOT Line not
Dial Pulse Ratio Less than 60 dBm. : 10pps /-,10%
Input Power : 230V AC, 50Hz.
Longitudinal Balance : 60dBm.
Switch Faults : 8 Switch Faults are provided on board to study
Test Points different effects on circuit. : 46 Nos.
Power Requirement : 11V, 23V, 5V, 15V.