RCF BM 3022 User Manual

10
ENGLISH
It is possible to link in series ('daisy-chain') up to 30 BM 3022 paging
microphones in a single line (the output of a paging microphone is sent to
the input of the next one).
The included adapter (RCF AC AD2405, 24 V dc) can power up to 4 BM
3022 paging microphones (note: the power supply is linked in parallel on RJ
connectors, pin 5: +, pin 4: –).
The RJ45 output of the last BM 3022 paging microphone shall be
connected to the amplifier through a custom cable (not included),
according to the following schematic.
The RJ45 input of the first BM 3022 paging microphone allows to connect a
generic stereo music (e.g. RCF MS 1033) that has an adjustable output level
(range -10 ÷ + 4 dBu).
See the following schematic.
Brown
Brown/ White
Green
Blue/ White
Blue
Green/ White
Orange
Orange/White
12345678
Green
Blue
Green/White
Orange
Orange/White
gnd
+
–
DRY CLOSING CONTACT
FOR PRIORITY
AUDIO SIGNAL
Brown
Brown/ White
Green
Blue/ White
Blue
Green/ White
Orange
Orange/White
12345678
L
R
RJ
15K
_
+
15K
STEREO
MUSIC
SOURCE
2 SHIELDED WIRES
RCA
RJ
AC AD2405
(max. 4 BM 3022)
24 V dc
AC AD2405
24 V dc
TALK TALKTALK TALKTALK TALK
max. 30
BM 3022
IN IN IN IN IN INOUT OUT OUT OUT OUT OUT
AMP.
CAT 5 CAT 5 CAT 5 CAT 5 CAT 5
4 3 2 1

RCF BM 3022 Specifications

General

Brand	RCF
Model	BM 3022
Category	Microphone
Language	English