Oxmoor PIR-88M - Manual

Oxmoor Corporation, LLC, 309 Cahaba Valley Parkway, Birmingham, AL 35124 USA Toll Free: 1-800-262-6898
Phone: 205-982-8200 Fax: 205-982-8250 E-mail: [email protected] Internet: www.oxmoor.com
unbalanced audio inputs. BNC
RF OUT jacks on both units
present the signal to be deliv-
ered to each emitter panel.
Other rear panel connectors in-
clude 9-pin, D-sub PA-422 input
and output ports, used to re-
ceive PA-422 data and pass it
along to the next PA-422 device,
and cage clamp terminal block
connections for the external
±
15
VDC powering module.
Oxmoor Corporation, LLC’s
eight-channel Infrared Matrix
system simplifies the integration
of infrared assistive listening
and room combining systems.
By routing appropriate IR modu-
lators and emitter panels to co-
incide with room combining
changes, both models eliminate
intermodulation interference
without the need for complicated
physical patching.
The PIR-88M Infrared Modula-
tor Matrix
™ packs eight electroni-
cally balanced audio inputs and
eight RF modulators into the
same compact 1U chassis. Each
of the PIR-88M's modulators is
limiter-protected and may be
switched to 95 kHz or 250 kHz
with front-panel LED display of
the selected frequency.
The system easily interfaces
with Oxmoor’s MCS
™ Room
Combining System through PA-
422 ports. Connected to the MCS-
Mainframe, the PIR-88M config-
ures IR assistive listening sys-
tems, automatically tracking
room combining changes se-
lected at the MCS master con-
troller. IM interference between
emitter panels is prevented by
allowing only one modulator to
drive the selected group of emit-
ter panels.
Integrating the Oxmoor Infra-
red Matrix Systems into other
combining systems is also
simple. Control can come from
either external “preset” switches
or a PA-422 controller. Up to
eleven presets can be user pro-
grammed, each providing a dif-
ferent patching assignment be-
tween the eight input and out-
put connections.
A 37-pin standard D-sub con-
nector provides the connections
for external preset switches. This
Control Port facilitates an exter-
nal switch for programming the
presets and "tally" indicator ac-
tivation (open-collector closures
to common) for routing and pro-
gram switches. DC power is also
present at the Control Port for
tally LEDs.
The screw terminal blocks on
the PIR-88M accept balanced or
50 ohm
75 ohm
50 ohm
75 ohm
50 ohm
75 ohm
50 ohm
75 ohm
50 ohm
75 ohm
50 ohm
75 ohm
50 ohm
75 ohm
50 ohm
75 ohm
L I M M O D
L I M M O D
L I M M O D
L I M M O D
L I M M O D
L I M M O D
L I M M O D
CH. 1
CH. 2
CH. 3
CH. 4
CH. 5
CH. 6
CH. 7
CH. 8
CH. 1
CH. 2
CH. 3
CH. 4
CH. 5
CH. 6
CH. 7
CH. 8
L I M M O D
SWITCHER
CONTROL PORT
••••••••••••••••••••
•••••••••••••••••••
95 kHz 250 kHz
Out In
•••••
•••• ••••• ••••
PA-422
Send/Receive On Board Microcessor
ON
1 2 3 4 5 6 7 8 CH.
SW1
95 kHz 250 kHz
95 kHz 250 kHz
95 kHz 250 kHz
95 kHz 250 kHz
95 kHz 250 kHz
95 kHz 250 kHz
95 kHz 250 kHz
PIR-88M
INFRARED MATRIX ™ SYSTEMS
PIR-88M Infrared Modulator Matrix ™