Extron Electronics MVC 121 - Manual (Page 20)

MVC 121 • Installation and Operation
Installation and Operation, cont’d
2-8
Use the supplied tie-wrap to strap the power cord to the
extended tail of the connector.
Your MVC 121 may have shipped with a blue captive
screw connector. This blue connector can be plugged
into either a blue or an orange power receptacle.
The ideal length of exposed (stripped) copper wire
for the blue connector is 3/16" (5 mm).
The blue connector does not have the extended tail or the
included tie-wrap.
Do not tin the power supply leads before installing in the
direct insertion connector. Tinned wires are not as
secure in the connectors and could be pulled out.
After making any adjustments to the MVC 121, either
via the front panel controls, SIS commands, or the
Extron Audio Products Control Program, wait at least
10 seconds after making those changes before
disconnecting power to the MVC 121. Failure to
observe the 10-second timeout may result in those
adjustments not being saved.
2 Mic input DIP switch — Mic 1 and Mic 2 inputs are controlled
via a DIP switch.
1. Set the mic input Level according to the microphone type:
a. Wireless mic: Set the mic’s DIP
switch to the Line position (On).
b. Wired mic: Set the mic’s DIP switch
to the Mic position (Off).
2. Set the 48V phantom power position according to
microphone type:
a. Condenser mic: Set the mic’s DIP switch to the On
position.
b. Dynamic mic: Set the mic’s DIP switch to the Off
position.
Condenser microphones require power. Dynamic
microphones do not require power.
When a mic’s input level DIP switch is set to “line”
level, that input’s 48V phantom power is disabled
regardless of the “48V” phantom power DIP switch
setting of that input.
ON
LEVEL
4
8
V
ON
OFF
LINE
MIC 1 2 3 4
1 2 1 2