Oxmoor MCS - Manual (Page 7)

Page 5
Figure 1.3: MCS-MAINFRAME Rear View
Figure 1.2: MCS-MAINFRAME Front View
MCS - MAINFRAME DESCRIPTION
(Callouts refer to Figures 1.2 and 1.3)
1. POWER STATUS LED’s - Indicators for +15 VDC, -
15 VDC and +5 VDC Power On.
2. MUSIC - Input gain pot, accessed through the front
panel with a small flat-blade screwdriver, adjusts the
input stage from 0 to -60 dB, to compensate for varying
input signal levels.
3. INPUT GAIN TRIM POTS - (Labeled “CHANNEL
1”,CHANNEL 2", etc.) Accessed through the front panel
with a small flat-blade screw driver, these trim pots ad-
just the input stage gain +/-15 dB, to compensate for
varying input signal levels.
4. MCS-LI LINE INPUT CARDS - One used for each
zone to be combined. Each provides terminal strips for
balanced audio inputs and outputs, remote volume con-
trols, and LOCAL and MUSIC SELECT with TALLY in-
dications. A trim pot is provided (see Front Panel View)
for audio input level adjustments, and a MUTE contact
allows the audio output of the MCS-LI Line Input Card
to be muted by momentary contact closure to common.
5. MCS-LC LOGIC CARD - Provides controls for set-
ting LOCAL and MUSIC default levels, terminal block
connections for balanced MUSIC input, PAGE logic con-
nection, and HEAD-TABLE speaker muting. Terminals
are also provided (POWER and COM) for connection to
the power supply for the HEAD-TABLE relays.
6. MCS-CC CONTROL CARD - Provides loop-through
connections and address selection for PA-422 devices.
The Control Card handles communication between the
MCS-Mainframe and a controller (Control Panel,
Oxmoor's Interface Box, PA-422 control device).
7. MCS-PS POWER SUPPLY - Provides power to the
MCS Mainframe and all remote logic functions. Requires
100 to 130 VAC at 50 to 60 Hz for normal operation.
MCS-MAINFRAME
MCS ROOM COMBINING SYSTEM
POWER
+15 VDC
–15 VDC
+ 5 VDC
MUSIC CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8
2 1 3
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LI
CU
DISP
IN -
IN +
COM
OUT +
OUT -
COM
COM
CD
LOCAL TALLY
MUSIC TALLY
LOCAL SELECT
MUSIC SELECT
MUTE
MCS-LC
MUSIC IN -
PAGE
MUSIC IN +
COM
COM
COM
COMBINE LEVEL
LOCAL
HEAD 1
HEAD 2
HEAD 3
HEAD 4
HEAD 5
HEAD 6
HEAD 7
HEAD 8
POWER
COM.
MUSIC
MCS-CC
PA-422
IN
PA-422
OUT
1
2 4
8 16
32 64
128
PA-422
ADDRESS
FU
SE
POWER
OXMOOR
MADE IN USA BY OXMOOR CORPORATION
BIRMINGHAM, ALABAMA
®
C H A SS
IS
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