TELIKOU
MS-800 Eight-Channel Main Station
7
3 Turn on the microphone on sub-station and belt packs one by one, and then
adjust the Sidetone to satisfied level.
Rear Panel
22. Intercom Line connector
3-pin XLR female socket, eight interfaces corresponding to eight channels; The
pinout of the intercom connectors is as follows:
Pin 1 --- Common (Shield)
Pin 2 --- Power (+24 VDC)
Pin 3 --- Audio
23. Termination switch
This switch provides switchable termination for system. In most systems,
termination should be in the ON position. The fundamental concept of Party-Line
intercom is that all the channels are terminated in one location, preferably at a
main station. For example, the termination switch on main station should be set to
the ON position, and termination switches on other sub stations should be set to
the OFF position.
When termination switch is set to the ON position, one 220 ohm termination
resistor is connected to intercom line. If intercom system is not terminated, the
level of intercom line will become high, and the system stability will be influenced.
However, only one termination point is allowed within same intercom line. If
multiple termination points are used incorrectly, the driving load will be overloaded,
and the level of intercom line will become low.
Before using, you should set termination switch to the ON or OFF position
according to the actual connection of intercom line.
NOTE: All intercom lines must be terminated only once, whether they
are used or not. Never "double-terminate" a line.
24. Program Input
A 3-pin XLR female connector provides balanced input to the station. It activates
when Program Feed To switch (17) turned on. The external program signal is sent
into intercom line. The program level can be adjusted by the Program Level
