Gilderfluke&Co 16 Bit CD-Quality Digital Audio Systems User Manual

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"?" (HALF-MASK) (FULL-MASK)

Mute Mask:

This command usually comes from the PA MASTER to a AB/DR-3000. It is followed by an eight bit half-

mute mask and an eight bit full-mute mask. Any bits on these two masks which match enabled full and
half mute zones will cause the repeater to set its output level as needed.

EXAMPLE: to mute zone 1, 5 and 6, and half mute zone 3, 4, and 8:

? 8 C 3 1

"[" (PA ZONE) (PA STATION) (TRUNK#)

PA Command:

This command usually comes from the PA MASTER to a DR-3000 which is part of the PA system. AB-

3000s, having no Digital Audio Bus, canÕt respond properly to PA requests. They will be half-muted if they
think they are responding to a PA request.

This command opens the TRUNK# for each valid request for a PA ZONE. The only PA ZONES which

any DR-3000 will respond to are those which have been enabled on the Main Configuration Menu. If a
higher priority PA request comes in than is already being serviced, it will be honored. If a lower priority PA
request comes in, it will be ignored by the DR-3000.

EXAMPLE: if a PA request comes in from PA STATION 55 to access PA zone AA, with the audio feed

to be found on trunk line 3:

[ A A 5 5 3

"]" (TRUNK#)

Clear PA Request:

This command usually comes from the PA MASTER to a DR-3000 that is part of the PA system. AB-

3000s, having no Digital Audio Bus, canÕt respond properly to PA requests.

This command is used to clear PA requests on the AB/DR-3000s. When a valid PA request comes in to

any DR-3000, it opens up the appropriate PA TRUNK LINE to feed the audio from the PA STATION to the
DR-3000. This command clears the PA request by turning off the TRUNK# of the PA request. In clearing
the PA request, it allows the mute level to return to whatever it should be.

EXAMPLE: to clear any PA requests which used trunk line 3:

] 3

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