Important wiring instructions, Wiring, Ps-2420 power supply connection – Aiphone YAZ-90-3W User Manual
Page 5: N y y y, Y y y y, Q y y y, Y a y y, N y y n, S y y s, Wiring diagram
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5
WIRING DIAGRAM
' YAZ-90-3W is a Parallel-wiring system, requiring up to 4-twisted pairs of conductors throughout the system.
STATION
#:[T^
YAZ-90-3W
STATION
#:[n]
YAZ-90-3W
STATION
#:[12]
YAZ-90-3W
P
STATION
#: [2^
YAZ-90-3W
STATION
#:
YAZ-90-3W
n y y y
1
2
4
8
y y y y
1
2
4
8
n y y y
1
2
4
8
n y y y
1
2
4
8
Q y y y
1
2
4
8
y a y y
1
2
4
8
y a y y
1
2
4
8
y y y y
1
2
4
8
n y y n
1
2
4
8
s y y s
1
2
4
8
" Station#
Terminals #1 & 2
for talk channel
Terminals #3 & 4
for
2
nd talk channel
Terminals #5 & 6
for 3'''^ talk channel
IMPORTANT WIRING INSTRUCTIONS
WIRING
• Use twisted pair cable.
• Connect 1st twisted pair to terminals 1 and 2, 2nd twisted pair
to terminals 3 and 4, 3rd twisted pair to 5 and 6 and 4>d twisted
pair to + and -. Do not cross wires.
■ Even if you have extra wires, do not use them for talk line.
Do not connect two or more wires to each number terminal.
PS-2420 POWER SUPPLY CONNECTION
• One PS-2420 power supply is required for every 30 Stations.
' Each PS-2420 power supply must be located near center
of each 30 Station group.
• The + and - lines must not be installed between each groups,
i.e. If the system includes 60 Stations, the 1st pS-2420 should
be connected to Station No.25 and the 2nd PS-2420 to Station
N0.55. Do not connect terminals + and - between Stations
N0S.39 and 40.
• If you have extra wires, it may be used for wiring to +, -
lines (never for talk lines). It is important, however, the line
resistance on +, - lines is equal as shown in the drawing.
Yes
(Pair)
e-
(Pair)
It
tc
~n
if
(Pair)
jCC3)[
-o
(Pair)
Yes
No
Group 1 Group 2
DO NOT CONNECT
STATION
#10-39
STATION
#40-69
5 -