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LOCATION OF CONSOLE/CONSOLETTE
Where possible locate the console centrally, relative
to the rooms being served, in order to minimize the
length of speaker cables. The rear of the unit must
remain accessible for maintenance and for changing in-
put and output connections. It is advisable that the unit
be oriented in such a manner that the operator, program
director and other interested parties are able to observe
the controls at all times. Provide adequate lighting and
ventilation. Do not locate the unit close to heat sources,
such as radiators and warm-air ducts, or against a wall
which prevents proper ventilation.
The Series 15-1 and 15T-1 consolettes are 21¼" (54
cm.) wide x 16" (40.6 cm.) high x 16" deep. The Series
15-2 consolette is 40½" (102.9 cm.) wide x 16" high x
16" deep. The Series 15-3 console is 22" (55.9 cm.) wide
x 46" (116.8 cm.) high x 31" (78.7 cm.) deep.
POWER
Connect the 3-wire cord with ground to a 105-125V,
50/60 Hz source. Make certain that the ground terminal
of the power receptacle connects to earth ground.
Two 50W AC power receptacles are provided on the
rear panel for a tuner, automatic record changer or aux-
iliary equipment. Line voltage is applied to these com-
ponents when the consolette or console power switch is
on. Plug AC line cords into appropriate receptacle.
INPUT CONNECTIONS
MICROPHONE INPUTS. Two terminal strips on
the rear of the MCT-1 provide for two low impedance
balanced or unbalanced microphone inputs. Two-
conductor shielded microphone cable should be used
(Bogen #l008 or equivalent). Connect shield to terminal
1.
Type of Classroom Switch or Device
Used with Speaker
None (Speaker Only)
Call (Model CA-l0)
Call/Privacy (Model CA-l 1)
Voice Call-In, Non-Private
(Model CA13)
Run
*Alternate method:
one cable in a loop or branch circuit connecting all room switches.
TABLE I. CABLE RUNNING CHART FOR SERIES 15
Wires from Room to Consolette
Shielded Pair
(Jacketed)
(Bogen BB-8450)
2*
two cables from room nearest consolette and one cable from each remaining room. Run
TUNER/PHONO-TAPE INPUTS. Two jacks accept
single-conductor shielded cable.
TAPE RECORDER/BOOSTER AMP INPUT. Ac-
cepts a two-conductor shielded cable (Bogen BB 8450 or
equivalent).
INTERCOM CALL-IN LINE. Connect parallel lines
from station call-in switches with 2-conductor shielded
cable. Connect shield to terminal 3.
SWITCHBANK CONNECTION. Eleven-pin plug
connects three shielded pairs plus annunciator wire
from a switchbank. Also accommodates three lines for
optional telephone system.
TIME CLOCK INPUT. Terminal strip connects a
single-circuit time clock, closing contacts to activate the
optional Model SST-l Module.
GENERAL WIRING
RUNNING CABLES
WIRES. Class II wiring may be used for all audio and
annunciator lines. Make certain to properly support
cables to prevent sagging or strain. Keep wires clear of
objects which would subject them to heat, friction, or
other abuse.
Use No. 20 AWG shielded pairs with insulated outer
jacket (Bogen BB-8450, or equivalent) for speaker lines.
Annunciator lines require a third wire, which usually is
No. 22 AWG insulated wire with red insulation (Belden
8937, or equivalent). The number and types of wires
running from each room to the consolette and running
inside the classroom depend upon the type of speaker
operation required. Consult Table I for the wires re-
quired in your particular system.
No. 22 AWG
Single
Conductor
(Belden 8937)
1
0
1
1
1
1
0
-2-
Wires From Room Switch
to Room Speaker
Shielded Pair
Refer to
(Jacketed)
Figure
(Bogen BB-8450)
0
1
1
1
2, 7
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