Oxmoor PRM-8 - Manual (Page 3)

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to its original level upon completion of a page. Page
Level gain controls provide independent page level set-
tings for each program channel.
Controls on the rear of the PRM-8 include a "Mic, Line"
switch for configuring the page Mic/Line input to accept
either a microphone source or a line-level source and
screwdriver-adjustable attenuators for both page inputs.
A Control Port allows the use of contact closures, mo-
mentary or maintained (user selectable), for zone page
selection and zone page clear. Zone page enable and all
page enable always require a maintained closure. DC
power is also present for adding LED tally indicators for
all control functions.
The PRM-8 is ideally suited to solving the complex
patching requirements of paging within room combining
systems. When linked to Oxmoor’s MCS Room Combin-
ing System through PA-422 ports, the Page Module
tracks room combining changes. As a result, a page
routed to one channel within a combined group will go
to all channels in the group. Besides allowing communi-
cation between the PRM-8 and the MCS-Mainframe, the
PA-422 ports make possible the utilization of an alterna-
tive controller.
All PRM-8 audio inputs and outputs are electronically
balanced and accommodate either balanced or unbal-
anced lines. Terminal block connectors insure easy in-
stallation and solid mechanical connection for the eight
program channel inputs and outputs as well as the line-
level page input. The page Mic/Line connection is
through a standard female XLR-type connector.
The PRM-8 Page Module brings simplicity to system de-
sign, installation and operation, along with the uncom-
promising performance and reliability for which
Oxmoor products are well known and respected.
The eight-channel PRM-8 Page Routing Module simpli-
fies page routing within multiple-zone sound systems.
Page inputs are easily routed to any one, or any combi-
nation, of the module’s eight program channels.
Upon initiation of a page, program audio at each se-
lected channel is automatically faded to a user-deter-
mined level and mixed with the page signal. Upon
completion of a page the program audio on each chan-
nel is ramped smoothly back to its original level.
Each of the two PRM-8 page inputs may function as a
Zone Page and/or an All Page input as determined by
internal dip switches. An input assigned the All Page
function takes priority over the Zone Page input.
Accessed through the control port, the Zone Page En-
able control routes the zone page input to the selected
program channels. During this page, the program audio
of each selected channel is ducked as determined by the
Duck Level.
Similarly, the All Page Enable control routes the All
Page input to all program channels. During this page,
the program audio of all channels is ducked as deter-
mined by the Duck Level.
In some installations it is desirable to prevent the All
Page signal from being heard in certain zones. An All
Page Source dip switch removes the All Page source
from selected channels during an All Page function. All
channels will continue to duck and ramp the program
source during an All Page.
Screwdriver-adjustable controls on the front panel of the
compact, 1U chassis include Duck Level for setting the
level to which program audio is attenuated during a
Zone Page and All Page. Fade In adjusts the time re-
quired for the program audio to reach the duck level
upon initiation of a page. Fade Out adjustment deter-
mines the time required for the program audio to return
PRM-8 INTRODUCTION
• Multi-channel zone-page feature
• All-page capability
• Eight program channels
• Mic/line selectable page input
• Second line-level page input
• Individual channel page-level controls
• Adjustable program ducking
• Individual channel ramp-up/down adjustments
• Zone selection control by momentary or maintained closure
• PA-422 serial control capability
• Provision for real-time LED tally indicators
• Removable terminal blocks for easy wiring