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the gain of the microphone preamplifier is 30 dB, and with the jumper closed the gain is 40 dB
(factory set-up).
MICROPHONE PREAMPLIFIER
MICROPHONE PREAMPLIFIER
GAIN SET UP TO 30 dB.
GAIN SET UP TO 40 dB.
ACTIVATING THE MICROPHONE PHANTOM POWER
The microphone PHANTOM power can be activated or disabled with an internal jumper (JP2,
MIC PHANTOM, placed at the front left corner of the main PCB of the unit).
With the jumper open the PHANTOM power is disabled, and with the jumper closed the
PHANTOM power is enabled.
If an electret microphone is used, the PHANTOM power must be enabled and if a dynamic
microphone is used, the PHANTOM power must be disabled. The microphone PHANTOM power is
9 VDC.
PHANTOM POWER
PHANTOM POWER
DISABLED.
ENABLED.
CONFIGURATION OF THE MULTIPURPOSE RELAY ACTIVATION
The multipurpose relay (PA OUTPUT RELAY) can be configured to activate it with the SA switch
pression, and/or activating the channel A or B microphone (TALK) independently.
The multipurpose relay activation can be configured with an internal DIP-SWITCH (DSW1,
positions 1,2 and 3, PA RELAY BY MIC ON A, MIC ON B, SA_KEY), placed at the middle of the main
PCB of the unit).
The configurations are additive, this means that if we have configured the positions 1, 2 and
3, the multipurpose relay will be activated whenever the channel A or channel B microphone are
activated, as well as when the key of SA is pressed.
The factory set-up is with the DSW2 position 3 (SA_KEY) in ON and the other positions in OFF,
so that the multipurpose relay is active only with the SA switch pressed.
With the position 1 of the DIP-SWITCH in ON (MIC ON A), the multipurpose relay will be
activated whenever the channel A microphone is active, and with the position 1 of the DIP-SWITCH
in OFF the multipurpose relay won't be activated with the activation of the channel A microphone.
MULTIPURPOSE RELAY
MULTIPURPOSE RELAY
ACTIVATION WITH THE
ACTIVATION WITH THE
CHANNEL A MIC SWITCH
CHANNEL A MIC SWITCH
DISABLED.
ENABLED.
With the position 2 of the DIP-SWITCH in ON (MIC ON B), the multipurpose relay will be
activated whenever the channel B microphone is active, and with the position 2 of the DIP-SWITCH
in OFF the multipurpose relay won't be activated with the activation of the channel B microphone.
MULTIPURPOSE RELAY
MULTIPURPOSE RELAY
ACTIVATION WITH THE
ACTIVATION WITH THE
CHANNEL B MIC SWITCH
CHANNEL B MIC SWITCH
DISABLED
ENABLED.
WB-200 SERIES INTERCOM SYSTEM — WBS-202 DUAL CHANNEL WIRELESS BASE STATION
