Specifications

6
REMOTE CONTROL
Infrared and wall-mount remote control is optional for the SPM412e. Remote control affects Channel Select and Main Level (plus mute).
Remote control may be added at any time, and does not require the SPM412e to be modified, opened, or removed from a rack. There are
two remote control devices: a hand-held Infrared Transmitter
and a wall-mount push-button Controller with status indicators & infrared
detector (see diagrams below). Remote control of the SPM412e is also possible via third-party controllers, which utilize a carrier-stripped
serial bit-stream (see Translator on next page).
Infrared Transmitter
: The Transmitter is a hand-held controller, which transmits infrared codes unique to
Biamp. Therefore, the Transmitter should not affect any other infrared controlled equipment (such as TVs or
VCRs). Likewise, other infrared controllers will not provide proper control of Biamp equipment. The Transmitter
requires two AAA batteries, which are included with the unit (user installed). The Transmitter has twenty-eight
buttons, only seven of which control functions on the SPM412e. Channel Select buttons provide the same
function as those on the SPM412e front panel (except that only one stereo line input can be selected at a time).
When a stereo line input is selected with the Transmitter, the associated LED indicator on the SPM412e front
panel will light. Main Level buttons provide the same function as Main Level buttons on the SPM412e. For best
results, there should be an unobstructed line-of-sight from Transmitter to Receiver. The Transmitter will operate
up to 30 feet from a Controller panel. When infrared information is transmitted to the Receiver, the LED indicator
inside the Receiver will light. NOTE: The Infrared Transmitter requires an Infrared Receiver (or Controller) to
allow infrared control.
1234
CHANNEL SELECT
MUTE
VOL
VOL
MAIN
LEVEL
ADVANTAGE SPM412e
Controller: The Controller is a ‘hard-wired’ control, which is powered by the SPM412e. There
are no batteries to wear out, and it is not easily lost or stolen. The Controller may be wired up to
2000 feet from the SPM412e, using 2-conductor shielded cable (not included). The Controller
overrides all similar commands which might be initiated from the front panel of the SPM412e
(see NOTE below). To install Controller, first remove mounting box from circuit board & front
panel. Route cable through "knock-out" hole on rear of mounting box. Install mounting box in
wall or panel. Three screw terminals on circuit board (‘GND’, ‘IR2’, & ‘IR3’) correspond to
‘Remote’ terminals on rear panel of SPM412e. Connect cable shield to ‘GND’ terminals at each
end. Use conductors to connect ‘IR2’ to ‘IR2’ & ‘IR3’ to ‘IR3’. Install circuit board & front panel
on mounting box. The Controller has seven buttons which control functions on the SPM412e.
The Channel Select buttons & indicators provide the same functions as those on the SPM412e
front panel (including the ability to select more than one stereo line input at a time). The Main
Level buttons & display provide the same functions as Main Level on the SPM412e front panel
(except that only a single indicator will light to display the level setting, and it will dim when the
output is muted). The Controller also includes an infrared detector, which allows it to operate as
an Infrared Receiver as well. NOTE: Two additional screw terminals (‘GND’ & ‘KEY SWI’) allow
an external key-switch (or contact-closure) to ‘lock-out’ control of Channel Select and/or Main
Level functions from the Controller. These functions will then be temporarily available from the
SPM412e front panel, as long as the ‘lock-out’ is maintained. When ‘lock-out’ is released, the
Controller memory will then reassert its previous settings on the SPM412e. A 4-gang DIP switch
on the Controller circuit board allows custom functions to be assigned, such as Channel Select
‘lock-out’, Main Level ‘lock-out’, key-lock triggering, and infrared detector defeat (instructions
included with Controller).
MAIN LEVEL
SPM412e Controller
CHANNEL SELECT
1
2
3
4
max
min
MUTE