Curriculum
Details
Sample
Activities
SIP397-3P
Central Office
SCOPE
OF THE STUDY
The
Central Office Panel, SIP397-3P, is part of the Digital Communications
Course. The panel can also be used as an interface between a
subscriber's telephone and the Microwave Communications System,
SIP365BC. When interfaced with the microwave system, the panel
provides an electrical interface with the telephone, converts the analog
voice signal into a digital stream of 8-bit words, converts the digital
words into an optical transmission, decodes the optically received signal
and provides a replica of the original signal.
A time slot assignment circuit (TSAC) selects the appropriate channel for transmission and reception. The system operates over the voice channel bandpass of 300 Hz-3400Hz. The low power optical driver, designed for use within 1mm fiber optic cable, can drive cable lengths of at least 4-5 meters. Since the cable produces phase shift, an adjustable phase shift network is included on the panel.
Course Time: 55 Hours
FEATURES
 | Provides complete electrical and mechanical interface with a subscriber's telephone and transmission line |
| Provides ringing voltage and timing sequence |
| Converts analog voice and signal into an 8-bit serial word stream |
| Contains central timing clock and slot assignment circuitry |
| Converts electrical signals into optical transmission |
| Contains time (phase) delay circuitry for time slot synchronization |
| Makes use of modern ICs such as SLIC, TSAC, and CODEC |
EQUIPMENT (Included)
| SIP397-3P Central Office Panel |
| S397-1 Electronic Telephone Handset |
| FOC-3M Fiber Optic Cable, 3 meters |
| SIP397AM Laboratory Manual |
Weight of included equipment 5.0lbs.
POWER BASE REQUIRED
(1) S300PSB Power Supply Base