Systems Digital Audio Tranceiver/Mixer User's Manual

APPENDIX 11-3
100Ω
100Ω
+4 dBu
20kΩ
+4
d
Bu
Here, the output is loaded with a high impedance, as would be the case with
modern equipment. ZephyrExpress’ voltage level is conveyed to the load with
no noticeable attenuation.
100Ω
100Ω
+4 dBu
600Ω
+1.5dBu
When a 600 Ω load is used, the voltage divides, with 2.5 dB being lost in Zephyr-
Express’ internal source resistance. Note that, in this case, the meter across the
600 Ω resistor can be said to be indicating dBu or dBm.
CODEC COMPATIBILITY INFORMATION
We believe strongly in the benefits of compatibility. That is why we include a variety of
operational modes designed to accommodate the largest number of non-Telos codecs.
We are constantly testing compatibility in our own labs, as well as accumulating infor-
mation from others regarding using ZephyrExpress with other codecs. For the latest
compatibility information please check our web site, http://www.Zephyr.com, or con-
tact Telos customer support.
This is an area constantly in flux, so please contact us with any specific needs not covered
below. We also appreciate your contacting us with any information which could be of
use to others.