– 3 –
PRECAUTIONS ON INSTALLATION & WIRING
PRECAUTIONS ON INSTALLATION& WIRING
WARNIN
G
1. Do not connect a power supply other than Aiphone Model P
S
-24E or P
S
-2420 to terminals +,
–
on NHX-80X. Doing so can cause fire or damage to the unit
.
2. Do not change or modify NHX equipment
.
3.
Th
e
NHX
equ
i
pment must not
b
e expose
d
to water or an
y
ot
h
er
li
qu
id.
4. Do not open NHX-80X without first unplu
gg
in
g
power supply(ies) to prevent electric shock
.
5
. Make sure wires are connected properly before plu
gg
in
g
in the power supply
(
ies
).
6. Keep AC cord free from being pulled or crushed
.
7.
D
o not p
l
ug or unp
l
ug w
i
t
h
wet
h
an
d
s
.
8. Keep A
C
outlet awa
y
from moisture and dust
.
:
WARNIN
G
(
Ne
g
li
g
ence could result in death or seriou
s
i
njury
)
:
P
RE
C
A
U
TI
O
N
S
(
Negligence could result in injury or damag
e
t
o propert
y)
:
G
ENERAL PRE
C
AUTI
O
N
S.
:
P
ro
hibi
t
i
ons to
di
smant
l
e e
q
u
ip
ment.
:
Prohibitions to sub
j
ect the equipment t
o
wa
t
er
.
:
T
a
k
e t
h
e un
i
t to eart
h
groun
d.
P
RE
C
A
U
TI
O
N
S
1.
M
ount t
h
e
NHX
-80
X
un
i
t on wa
ll
i
n a conven
i
ent
l
ocat
i
on,
b
ut not w
h
ere
i
t cou
ld
b
e
b
um
p
e
d
o
r
j
arre
d.
2. Do not install NHX components in any of the followin
g
locations, as it may cause the system
to malfunction
;
–
Hi
g
h
or extreme co
ld
temperature area: un
d
er
di
rect sun
li
g
h
t, near equ
i
pment t
h
at var
i
es
in temperature, in
f
ront o
f
air-conditioner, inside a re
f
ri
g
erated area, etc
.
–
Pl
aces su
bj
ect to mo
i
sture or
h
um
idi
ty extremes
.
–
Places sub
j
ect to environmental conditions, such as oil, dust, chemicals, salt, etc
.
–
Places subject to constant vibration or impact
.
3. Take to earth ground every bed o
f
metal pipe construction to protect Bedside sub stations and
h
and-held call buttons from E
S
D(Electrostatic dischar
g
e)
.
G
ENERAL PRE
C
AUTI
O
N
S
1. NHX system is not operable durin
g
a power
f
ailure
.
2. In areas where broadcasting station antennas are close by, NHX intercom system may b
e
a
ffected b
y
radio frequenc
y
interference
.
3. Keep all D
C
wiring at least 30cm, 20” away from A
C
100~240V wiring, fluorescent lighting, o
r
d
immer switches.
C
ross A
C
wirin
g
at a 90° an
g
le
.
4. Do not connect any devices other than the Aiphone Models covered in this Manual
.
Mark
i
n
gs
In accordance with CSA C22.2 No.125-M1984, the 4th Edition Standard, For Electromedica
l
E
quipment the following NHX
S
eries units are provided with the "Risque class1 Part" (and in French
-
"Risque La Pièce class1") markin
g.
Model NH-1SA
,
and -2SA
,
-1SA/A
,
-2SA/A Patient Stations
;
Model NHR-7A, Bath Pull-Cord Stations
;
Model NHR-8A,
C
all
C
ord
T
his Manual is supplied with the NHX-80X Central Control Unit
.
P
rior to installation of NHX system, the contents of this Manual must be thorou
g
hly read and understood
.
T
he
O
peration Manual is supplied with the NHX-50M master station
.