General Description; Unpacking; Mechanical Installation - ASL INTERCOM BS 216 User Manual

1.0

GENERAL DESCRIPTION

The BS 216 is designed to be a master unit in an ASL
intercom system and can be used in portable as well as
fixed applications. It incorporates a dual channel intercom
line power supply with aux input, a dual channel headset
station and uses only 1U of 19" rack space.
This makes the BS 216 very versatile and ideal for use in
applications where standard microphone cable is available
and ease of setup is of paramount importance.
Each channel has a Volume (listen level) control, a Talk
and a Call button with LED indicators and a sidetone
trimmer.
The intercom line power supply is fully protected and can
drive at least 10 beltpacks operating at full power.
The power supply is completely separated from all other
functions and in case of power failure the unit can accept
line power from an external ASL power supply.
2.0

UNPACKING

The shipping carton contains the parts listed below.
* The BS 216
* Power cable
* Spare fuses
* User manual
If any are missing contact your dealer.
With the BS 216 will be a small packet of spare fuses.
Please keep them in a safe place.
There is also one spare fuse included in the mains inlet.
3.0

MECHANICAL INSTALLATION

A vertical rack space of 1U (1.75", 44mm) is required for
the BS 216. 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 is located on the left rear of the unit,
and after a period of time it will feel hot to the touch. This is
quite normal, and should be no cause for alarm.
User Manual BS 216 / Issue 1 © 1998 ASL Intercom, Utrecht, Holland.
For each channel separately, the intercom line impedance
circuitry is installed.
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.
Special attention has been paid to the intelligibility of
speech. By applying low noise/high speed circuitry, a
speech presence filter and a specially designed
headphone amplifier, communication is very comfortable
even in environments with high background noise level.
The unique ASL CALL system provides both a flashing red
LED and a very distinctive and characteristic sound signal.
Only a slight touch of the CALL button will make the LED
flash, whilst holding the button for two seconds will activate
the call sound signal.
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 occured, please notify your dealer
immediately so that a written claim can be initiated. Please
also refer to the guarantee section of this manual.
1