RCF BM 404, Руководство пользователя

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10
ENGLISH
NOTES ABOUT CONNECTIONS
Up to four BM 404 paging microphones can be connected in daisy-chain in
the same line.
Paging microphones are interlocked one another: the first that engages the
line gets priority.
The maximum overall length of the line (from the DMA amplifier to
the last BM 404 paging microphone) shall not exceed 100 meters /
109 yards.
N
ote
:
if the maiN amplifier is either the
Dma 82
or
Dma 162
moDel
(
both haviNg two
zoNes
)
aND selective calls to
4
zoNes are requireD
,
it is Necessary to aDD at least a
Dpa
162
amplifier
,
of which the chaNNel
a
is assigNeD to
bus 3 (
calls to zoNe
3)
aND the
chaNNel
b
to
bus 4 (
calls to zoNe
4).
BM
DMA
BM 404 BM 404 BM 404 BM 404
INPUT LINK
24 Vdc
INPUT LINK
24 Vdc
INPUT LINK
24 Vdc
INPUT
24 Vdc