7305–30 2-Wire Loop Signaling Repeater, Loop Start Only
■Document Purpose
▲This section provides a circuit description, installation, and basic testing information for the Charles Industries 7305–30 2-Wire Loop Signaling Repeater, Loop Start Only
■Equipment Function
▲The 7305–30 is a plug-in printed circuit board used to increase the signaling, supervisory, and dial-pulsing ranges on individual 2W lines or CO/PBX trunks. The 7305–30 detects an off-hook condition at the station location and repeats supervisory and dial pulse signals from the station location to the CO. On incoming calls, the module repeats local ringing toward the station or bypasses office ringing around the unit, depending on the position of an option switch. The module provides ring trip during both ringing and silent intervals.
■Equipment Features
▲The 7305–30 provides the following features:
◆Electronic ring detection and ring trip.
◆Low dial pulse distortion.
◆Low current drain.
◆Line and drop current limiting.
◆Idle line termination.
◆Repeater enable relay contacts.
◆Switch selectable isolated ring detector inputs; compatible with HORIZON* Key System ring detection requirements.
◆Integral pulse corrector equipped with user-selected enable/disable option.
◆Ring-stretch option can be arranged to either follow or bridge short ringing intervals.
◆Automatic current limiting on the drop side over a wide range of loop lengths.
◆High-impedance ringing detector to minimize line loading.
◆Ringing supplied either from SWG (switch-gear) or from local ringing generator.
◆Local ringing generator (if used) may supply grounded or negative-superimposed ringing.
◆Can be equipped with optional 7377–50 Battery Boost Subassembly
|
|
|
|
User's Guide |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
October 1999 |
|
|
Issue 2 |
|
|
|
|
|
132 KB |
- +1 Like
- Add to Favorites
Recommend
- Neoway Smart Modules S720 and S726 Enable Smart Brains for Thousands of Industries
- Cooperation on Wireless Charging Solutions: LAPIS Technology and Shanghai Amphenol Airwave join forces Providing one-stop support for implementing wireless charging functions
- KITAGAWA INDUSTRIES‘ Thermal Management Materials Meets Miniaturized and Faster Electronic Devices Needs
- Maxell Develops CLB640 Coin Type High Capacity Lithium-Ion Rechargeable Battery with a Diameter of Approx. 6mm and Approx. 1000 Charge/Discharge Cycle Characteristics
- Industrial AC-DC Converter: Powering Industries With Efficiency and Reliability
- Wholesale AC-DC Power Supply: Meeting the Demands of Modern Industries
- Industrial IoT Gateway: A New Defender For Traditional Industries
- Networking Solutions and Benefits of Industrial IoT Gateway in Traditional Industries
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
