User guide

VoiceLift System with PVS 405D • Features and Operation 21
a Input (In) port — If using a secondary receiver, connect a shielded twisted pair (STP)
cable from this RJ-45 connector to the output port of the secondary device (consult
your Extron sales representative for information on secondary receivers).
b Output (Out) port — Connect an STP cable from this RJ-45 connector to the
PoleVault switcher to provide the following:
• Power from the PoleVault switcher to the receiver
• Communication with the switcher to pass on carrier detection, relay, and contact
closure information
• Output of a balanced -10 dBV line level audio signal
c DIP switches
• Mix switch — This switch should remain in the Off (down) position. If it is left in
the On position (up), noise may be introduced into the system.
• Tone switch — Enables and disables the tone generated when the microphone
volume is changed. As the microphone volume increases, the level of the tone
increases also. The default state for this switch is On.
d RS-232 configuration port — This port allows firmware upgrades and gain
adjustments to be performed via SIS commands (see the SIS Configuration and
Control section beginning on page 24). An IP Link device such as the PVS 405D can
be connected to this port to monitor the status of the receiver. The default protocol for
this port is:
•
38,400 baud • No parity
• 8 data bits • No flow control
• 1 stop bit
e Auxiliary input (Aux In) port — Not supported on the PVS 405D
f Contact input (CTC) port — Connect this two-pole captive screw connector to a
contact closure device such as a push-button or a motion sensor.
g Relay (Rly) port — This relay port allows control of items such as lighting. If
connected to a digital I/O port of an MLC control panel, this port can be used to set
up an instant alert (see the Special Application: Instant Alert section beginning on
page 29).
The default state for this port is normally open. To trigger the relay, hold down both
parts of the Volume rocker button on the pendant microphone, or hold down both
Volume buttons on the handheld microphone, simultaneously for 3 seconds. When
the relay is closed, the LED in the center of the receiver dome flashes, alternating
between amber and green. The relay returns to an open state 10 seconds after the
Volume buttons are released. The contact rating for this port is 24 V, 1 A.
NOTE: The microphone must be on channel A or B for the Volume buttons to
trigger the relay.
h Tab with arrow — This tab contains an arrow etched into the side of the dome. To
attach the dome to the housing, align this arrow with the raised arrow on the rim of
the housing, then rotate the dome clockwise (see Removing and Replacing the
Receiver Dome on page 23).