ASL INTERCOM PS 260, Руководство пользователя

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User Manual PS 260 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.
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1.0 GENERAL DESCRIPTION
The PS 260 is designed to interface the ASL intercom The PS 260 includes two separate interfaces which are
system (party line) to external audio equipment or 4-wire completely identical. Each interface is power supplied via
communication systems. the intercomline.
For example a fixed cabled (4-wire) intercom system can The two-stage sidetone circuit (level, hi) allows you to
temporarily be extended with a portable ASL set, for use obtain an input/output separation better than 30 dB from
on location or a (4-wire) camera CCU can be connected to 20Hz to 20KHz.
the ASL intercom system.
Other applications include injection of external audio the sidetone level at any time.
signals and monitoring of the intercom line by external
equipment e.g. recorders, paging systems, etc.
The built in testtone generator helps you to adjust or check
2.0 UNPACKING
The shipping carton contains the parts listed below
*
The PS 260
* User manual
If any are missing, contact your dealer.
ASL has taken great care to ensure 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 so
that a written claim can be initiated. Please also refer to the
guarantee section of this manual.
3.0 MECHANICAL INSTALLATION
The PS 260 will interface between ASL partyline (3-wire
intercom) and external 4-wire systems.
To connect the PS 260 with ASL partyline system, use
professional flexible microphone cable with 2 wires and 1
shield only.
Connect the partyline system cable into the intercom line
connector on the rear. To connect the PS 260 with the
external 4-wire system, connect the output of this system
with the input of the PS 260 and the input of the system
with the output of the PS 260.
There are no separate power connections to install since
the necessary DC voltages are derived from the ASL
partyline.
The PS 260 is fully protected against mis-wiring (reverse
power) or short circuit in the interconnecting cables.