4.2 CONNECTION TO THE SYSTEM (ACSI BUS)
The equipment has two connections for the Public Address system. The connection for all
the elements is in bus mode. Each device is connected to the previous one, up to eight devices
and a maximum total wiring of 1000m (914,4, yrd)
Each device has a priority selector in the bus. Depending on the con figured priority, it will
be allowed to occupy the channel while it is occupied by another device. The priority of MPS 8Z
matches the adress of the ACSI bus. To set the system address in the bus and set the ACSI
address of the MPS 8Z, proceed as follows:
•
Ensure that the equipment has not got conceded word. The “CW” indicator will be off.
•
Hold the “CANCEL” and “MEM” buttons for at least 2 seconds.
•
The access to the address setting will be con firmed by the intermittent lighting up of the
“LINK” and “EMG” indicators. The set bus adress will be indicated by lighting the indicator
of the zone memory associated.
•
Push the memory selection button whose number corresponds with the desired address.
Remember the address matches the priority. The selection indicator of the corresponding
zone memory will light up.
•
Press the “TALK” button to con firm, “CANCEL” to cancel the address change.
•
The equipment will restart with the new bus address.
If while starting the MPS 8Z the ““LINK”, “FAULT” y “EMG” indicators blink simultaneously,
there is an address con flict in the ACSI bus with this device. In that case you must change the
address.
4.2.1 BUS TERMINATOR
The bus terminator selector “END” is located in the
upper part of the base of the equipment. It allows to
activate/deactivate the bus terminator. This control must be
active when the equipment is in the last position in the
ACSI bus.
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Picture 5: Devices connection in a Public Adress System
Picture 6: Bus terminator selector
