Bosch PM1-LISD, Инструкция по установке и эксплуатации

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Terminology used in this manual
Term Definition
Approved See certified.
Branch Loudspeaker line between an Isolator Board tap-off and the last
loudspeaker connected to the tap-off.
Certified Means designed and built to conform (compliant) to the stated
standard or guideline, and additionally tested and certified by an
accredited notified body.
Compliant In the framework of this manual, means designed and built to
conform (compliant) to the stated standard or guideline.
Fault isolation time The time required by the Isolator Boards to isolate a fault. This
includes the time required to restore audio to the non-affected
parts of the loudspeaker line after detection of a fault. In the
Loudspeakers Line Isolator System this time is always less than
4 seconds.
Fault recovery time The time required by the Loudspeakers Line Isolator System to
return to the normal OK state after a detected fault has been
corrected (< 100 s).
Fault reporting The loop fault indication LED lights up, and the corresponding loop
fault and general relay go to the NOK state on the Master Unit
(< 90 s).
Fault reporting time The time required by the Loudspeakers Line Isolator System to
report a fault (i.e. time required to go to the fault warning
condition).
Initialization The first state that the Loudspeakers Line Isolator System goes to
after system start up. The system takes a maximum of 10 seconds
to initialize the loop.
Loop Redundant loudspeaker line. All loudspeakers broadcast the same
signal. A loop has a dedicated input signal from the zone output of
the public address/voice alarm system at loudspeaker level. Some
standards limit the number of alarm zones in a loop (e.g. a limit of
25 loudspeakers if each zone has one loudspeaker).
Loop recheck While the Loudspeakers Line Isolator System is in a fault condition,
regular rechecks are performed to check the condition of the loop.
Loudspeaker line The loudspeaker line between the Master Unit (loop out and loop
return) and the loudspeakers, including the line to the
loudspeakers on the tap-off.
Loudspeaker Line
Isolator System Master
(PM1-LISM6) Referred to in this manual as “Master Unit” - main product of the
Loudspeakers Line Isolator System.
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8 en | About this manual Loudspeakers Line Isolator System
2014.03 | V1.1 | Installation and Operation Manual Bosch Security Systems B.V.