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User Manual BS 286 / February 2011 © ASL Intercom BV
2.0
UNPACKING
The shipping carton contains the parts listed below
*
The BS 286
*
Mains power cable
*
Spare fuses
*
User manual
If any are missing, contact your dealer.
ASL has taken great care to ensure that this product
reaches you in flawless condition.
After unpacking the unit please inspect for any
physical damage to the unit, and retain the shipping
carton and relevant packing materials for use should
the unit need returning. If any damage has occurred,
please notify your dealer immediately so that a
written claim can be initiated. Please also refer to the
warranty section of this manual.
3.0
WARRANTY
This unit is warranted by ASL Intercom to the original
end-user purchaser against defects in workmanship
and materials in it's manufacture for a period of one
year from date of shipment to the end-user.
Faults arising from misuse, unauthorized modifications
or accidents are not covered by this warranty. If the
unit is faulty it should be sent in its original packing, to
the supplier or your local ASL dealer, with shipping
prepaid. A note must be included stating the faults
found and a copy of the original suppliers invoice.
4.0
MECHANICAL INSTALLATION
For the BS 286 a
vertical rack space of 1U (1.75”,
44mm) is required. It is not necessary to provide
rear support by extra bracing or shelving. Adequate
ventilation must be provided by allowing sufficient
space around the sides and rear of the unit to
ensure free circulation of air.
Forced cooling is not required.
The power supply regulator is mounted on the rear
of the unit; after a period of time it will feel hot to the
touch. This is quite normal, and should be no cause
for alarm.
5.0
MAINS POWER & SAFETY EARTH
Connecting to mains power
The BS 286 may be connected to a mains power outlet
which provides 100
– 240 V AC, 50-60 Hz and at least
60 watts. The outlet should have a clean earth. Avoid
using mains power outlets which also power dimmer
controlled lighting equipment.
The wires in the mains lead are color coded:
green/yellow:
Earth / safety ground
blue:
Neutral
brown:
Live
In case the wires in the mains lead do not correspond
with the colored markings identifying the terminals in
your mains plug, proceed as follows:
The wire which is colored green/yellow must
be connected to the terminal in the plug which
is marked with the letter “E”, or by the ground
symbol, or is colored green.
The wire which is colored blue must be
connected to the terminal which is marked with
the letter “N” or colored black.
The wire which is colored brown must be
connected to the terminal which is marked with
the letter “L” or colored red.
Safety Earth
The green/yellow wire of the mains lead must
always be connected to the electrical installation
safety earth or ground
. This is essential for personal
safety as well as for proper operation of the BS 286
and the other connected stations. The green/yellow
wire is in the BS 216 connected to all exposed metal
surfaces. Any rack framework into which this unit might
be mounted is assumed to be connected to the same
grounding circuit.
6.0
GENERAL DESCRIPTION
The BS 286 is a dual channel power supply and can
be used in an ASL intercom system. The unit is
ideal for use in applications where standard
microphone cable is available and ease of setup is
of paramount importance.. The unit can drive at
least 10 beltpacks operating at full power.
The dual channel power supply is fully protected
against wiring mistakes (reverse power), short circuit
or dangerous thermal condition.
Should one of these conditions occur, the unit shuts
down. Once the fault condition has been removed,
the BS 286 resets automatically and full power is
restored.
An Aux input at the rear panel allows injecting
external audio signals of line or mic level into the
intercom lines. When „mic level‟ is selected, +30V
phantom power is available at the Aux input
connector.
