Products

EPABX Trainer

Consumer Electronics Trainers
Order Code 10946
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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.