Show pagesourceOld revisionsBacklinksAdd to bookExport to PDFODT exportBack to top Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer Reddit TeamsRecent ChangesSend via e-MailPrintPermalink × Table of Contents Handset Jack Pinout of Handset Jack in the Receiver Microphone Speaker Book Creator Add this page to your book Book Creator Remove this page from your book Manage book(0 page(s)) Help Handset This information is provided, if you like to use the handset for other projects (contact our sales). If like to use the handset interface for other hardware, like special headsets, please take a look at the headset interface also. Jack Pinout of Handset Jack in the Receiver Pin Connected to 1 Microphone + 2 Speaker + 3 Speaker - 4 Microphone - Microphone Item Value Unit Sensitivity -45 dB (0 dB = 1V/Pa) Impedance 2.2 kOhm Operation voltage 2 V Current consumption (max.) 0,5 mA Speaker Item Value Unit Sensitivity 91 dB (1 mW / 1 cm) Impedance 100 Ohm Power Rating 0.03 W (permanent) Frequency Range 70 - 10000 Hz The speaker is a standard electrodynamic speaker. It is expected to work with hearing aids with electrodynamic coupling (Telecoil), but has not yet been tested for this purpose. The speaker itself does not limit the acoustic level or is protected against overload. This protection circuit is implemented in the telephone. If you use the handset for other projects, you have to implement this protection circuit also. en/products/comfortel-d-series/developer/receiver.txt Last modified: 18.05.2022 04:00by 0.0.0.0