GE 940, Instructions For Use Manual

Page: 21 / 36

Connect the reader to the micro 17
No
te
:
1
A 4
70
oh
m,
1/
2W
, pu
ll-u
p r
esisto
r may
be
re
qu
ired
betw
ee
n +
12
VDC
a
nd
RE
ADER
D
AT
A 1
. T
he
pull
-up r
esi
st
or
sh
ou
ld be
in
st
alled at th
e mi
cr
oc
on
tr
ol
le
r’
s t
erm
inal
bl
oc
k.
R
ef
er t
o the
appr
op
riate
mi
cr
oc
on
tr
ol
ler man
ual f
or
inst
allat
io
n r
equi
remen
ts.
2
Sh
ielded cabl
e is
re
quir
ed. Co
nnect all
s
hields
to
gether at
th
e
m
icr
o o
r p
anel end usi
ng 14-A
W
G
w
ire
. Do
no
t m
ake s
hi
el
d co
nn
ect
ions
at
th
e
re
ad
er
.
3
Ref
er t
o the appr
op
riat
e
m
icr
oc
on
tr
ol
ler ma
nual
to
det
er
m
in
e wheth
er
th
is
co
nnecti
on
is
req
ui
red
fo
r p
rop
er
d
oor
s
w
itch
op
er
at
io
n.
4
Blo
ck
ing d
io
de
may
be
typ
e
1N
581
7 o
r G
E part num
be
r 521
224
001 (
in
cl
ude
d w
ith
re
ad
er
). Th
e
di
od
e
m
ust
be ins
tall
ed
in
a
s
ecu
re
lo
ca
tio
n, no
t accessi
ble thr
ou
gh the r
eader
re
mo
va
l.
5
Pr
ot
ec
tio
n
di
od
es
m
ust
be
1N4
002
, 1
N
40
03, o
r 1N4
004
fo
r the
do
or
str
ik
e as
se
mbl
y.
6
Fuse, po
wer
s
upply
, d
oo
r s
tri
ke, d
io
des, an
d
re
lay ar
e pr
ov
ided by
th
e
in
stal
ler
.
7
If
the
do
or
co
nt
act
switch
is
n
ot
u
sed,
co
nn
ect
re
ader
pi
n 9
d
ire
ctly
to
gr
ound.
8
Requ
est t
o e
xit
(R
EX
) t
erm
inal
s o
n
th
e
re
ader ar
e no
t to
be c
on
nect
ed
fo
r U
L
list
ed inst
alla
tio
ns.