Aiphone JA-2MECD Especificaciones Pagina 107

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NBJ-40B*
Call switching device
*Not available in Europe
NBJ-20B*
Call switching device
NBJ-20*
Call switching device
NBJ-40*
Call switching device
l Switches all NA sub wiring
from one master to the other
to route all call-ins to the
master on duty.
l NBJ-20 & NBJ-20B are
equipped with a rotary
switch, and NBJ-40 &
NBJ-40B with two rotary
switches.
l When the rotary switch is put
to 1 position, all the sub
wiring is connected with
Master station(M1). To
switch the sub wiring to
Master station(M2), put the
rotary switch to 2 position.
Features
NBJ-20 for NEM-10/C &
NEM-20/C
NBJ-40 for NEM-30/C &
NEM-40/C
NBJ-20B for NEM-10A/C &
NEM-20A/C
NBJ-40B for NEM-30A/C &
NEM-40A/C
Used for
1234 nE
1234 nE
1234 nE
...
...
...
1234 nE
...
1234 nE
...
M1
M2
S
NEM-20/C NEM-20/C
M
NBJ-20
NBJ-20B
NA-A, AN, NE
NB-L
M1 : Master station 1. M2 : Master station 2. S : Sub station.
(*)Terminal M remains unused. (on NBJ-20B)
Wiring
Call switching device
NB-U
Music adaptor
Power source 6V DC, supplied by NEM.
Permitted input 5W. 10W at its peak.
Wiring 3 wires commom + 2 per 10-call (max.11).
Distance NB-U to NEM 10m(0.65mma) 15m(0.8mma)
NB-U to Amp. 75m(0.65mma) 115m(0.8mma)
Specifications
l Distributes music to all subs
with auto mute while
communicating.
l When NEM includes NEW-5
adaptor(s), NB-U cannot be
used.
Features
B
Y
A1
V1
A2
V2
A3
V3
A4
V4
E
B
Y
A1
V1
A2
V2
A3
V3
A4
V4
E
1
2
E
5
4
3
6
7
8
9
10
40
NEM-40A/CNA-A/AN/NE
NB-L
NB-U
8
8
BGM
l As shown, connect NB-U to 8 Ohm output of Amplifier with twisted pair wires.
l Remove jumpers between A1~V1, A2~V2,A3~V3, A4~V4 on master station.
l Amplifier requirements: Input: 100mV for rated output. 10W w/8d output or
10W w/4~16d output.
l Do not use 1Kd output on the amplifier.
Wiring
NEM-n/C, NEM-nA/C
(n = 10 ~ 40)
Used for
Music adaptor
COMMERCIAL & INSTITUTIONAL APPLICATION SYSTEM
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