Mackie Sound Palette Series SP2400 Instruction Manual page 17

Paging Mic Control
The PAGING MIC CONTROL connector is
provided to connect a manual paging switch.
Connect a normally-open switch between GND and
ZONE A (to page in Zone A only), GND and ZONE B
(to page in Zone B only), or GND and ALL CALL
(to page over the entire system). The voice-
activated (VOX) control for the Paging Mic still
operates in both zones when the switch is off.
Local Mic/Line Inputs
Connect a microphone to MIC/LINE INPUT A or B
(one for each zone), using the supplied Phoenix-type
connector, to use for a meeting room or other local
speaking requirements. Set the PHANTOM and
GAIN +40dB switches to their appropriate positions.
Select the OFF button on the front panel. This
disengages the selected Program Source and
engages the MIC/LINE INPUT. Adjust the MASTER
VOLUME up/down buttons so the meter level is at
the "0" mark.
Note: The MASTER VOLUME setting for the
MIC/LINE INPUTS is independent of the MASTER
VOLUME setting for INPUTS 1-4. The MASTER
VOLUME setting for INPUTS 1-4 is stored in
memory when the MIC/LINE INPUT is selected (the
OFF button is engaged). When an INPUT 1-4 is
selected, the MASTER VOLUME setting for the
MIC/LINE INPUT is stored in memory.
Set the GAIN control so the meter indication is
near the "0" mark when speaking at an average
level into the microphone.
Set the 2-band EQ (LOW and HIGH) to the "U"
position. These can be adjusted later, if necessary.
Ambient Mic Inputs
This is an optional connection, but can greatly
enhance the performance of the Paging Mic.
Connect the optional MT-3100 mic to the AMBIENT
MIC input (one for each zone). This provides an
"ear" for the microprocessor to adjust the Paging
Mic gain to compensate for the ambient noise level
in the room. Use the supplied Phoenix-type
connectors to make these connections.
Note: Move the AMP ADDRESS switch #8 UP to
enable the ambient mic. See page 20 for more
information on "Using the Ambient Mic."
Expansion In/Out
If you are connecting two or more SP2400s in a
system, use the EXPANSION IN/OUT connections
to distribute the Program Input sources assigned to
the Expansion Bus between SP2400s. The two 25-
pin D-Sub connectors are in parallel (use one to
connect to the previous SP2400 and one to connect
to the next SP2400 in the chain).
REMOTE
You can connect one or more optional remote
controls (up to 10) to each zone on the SP2400 to
provide wall-mounted input select, program signal
volume control, and local mic volume control.
RS485
A PC can be connected to the RS485 port to
provide computer control for up to 16 SP2400s,
interconnected via their RS485 ports, using the
SPLinker Sound Palette Control software application.
If the PC doesn't have an RS485 serial port, you can
either install an RS485 interface card, or use an
RS232 serial port with an RS232-to-RS485 converter.
Two zones can be controlled with one wired
remote control by connecting the RS485 ports
between the two zones. (The RS485 ports are
connected internally, so an external connection
between the RS485 ports on a single SP2400 is not
necessary.) Each amplifier must have the same
AMP ADDRESS as the amp to which the remote
control is connected, with one assigned as Master
and the other as Slave. Use the supplied Phoenix-
type connectors to make these connections.
Note: Move the AMP ADDRESS switch #6
DOWN for Master and UP for Slave.
PRE OUT/AMP IN
These connections can be used to insert a signal
processor (i.e., graphic equalizer, compressor, etc.)
into the signal chain, or to feed the signal to additional
power amplifiers. If no external processor or external
amplifier is to be used, leave the U-shaped jumper in
place between the PRE OUT and AMP IN connectors.
OUTPUTS
Use the supplied two-conductor Phoenix-type
connectors with appropriate speaker wiring to
connect to the speaker or distributed speaker
system.
SP2400 – 17