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2) To cancel
the MW/FL
LED, the voice mail de-
vice must:
0 Go off-hook
(receive
dial tone from
HIOB).
l
Send
digits
8 7 X X (XX = EKT station
number).
0 Go on-hook.
09.30
HOXB
09.31
General:
Serves
as an
interface
be-
tween
the
key service
unit
and
conventional,
standard
telephones
or off-premises
extension
(OPX) lines.
Each HOXB serves two extensions,
replacing
two
station
assignments,
and will op-
erate
with
either
DTMF
or
rotary-dial
tele-
phones.
An
MRGU
(a ring
generator
and
-48
VDC power
supply)
is required
with
each three
HOXBs.
l
Se: Two HOXB modules
may be installed;
us-
ing stations
14 -
17.
l
Vle: Four HOXB modules;
using
stations
18
-
25.
INSTALLATION INSTRUCTIONS
SECTION 500-036-200
JANUARY
1988
-R5
E 0
C52
CD5
u
R44
FIGURE 30-HOXB CONNECTION STRAPS
NOTE.
LCR will function
(V/e only) when
a 2500-
type
telephone
is attached
to the HOXB.
09.32
Wall
Mounting:
An
HOXB
may
be
mounted
on any vertical
surface.
1) Locate
the
two
mounting
holes
on the
left-
hand
side.
2) Remove
the
module's
right side cover to ex-
pose
the
two
right-
hand
mounting
holes.
controls
the
operation
of OPX telephone
#l;
SW2
controls
OPX telephone
#2).
Set
each
switch
to DP for dial pulse or MF for DTMF tone
output,
as required.
After setting
the straps,
rein-
stall
the
cover
and
secure
it to the
base.
The
MF position
does
not allow
Toil Restriction
for
the
OPX station.
09.34
Cabling:
Refer
to
Figure
31,
three
3) Proper!y
position
the
moduie
adjacent
to
the
HKSU
with
re-
gards 'to wiring
needs.
4)-Secure
the
module
to
the
mounting
surface
with
provided
screws.
09.33
Option
Swit-
ches:
Remove
the
cov-
er of the
HOXB
and
lo-
cate the
two
operational
mode
straps
on
the
HOXU
PCB (mounted
to
the
HOXB
base).
As
shown
in,-Figure
30, the
straps
are located
in the
center
of the
PCB (SW1
/
21 "OCE
IR,
21 VOICE
IG,
/
/
NOTE: For OPX opsration.
the control
date
~:rr~uitconncctionfar
EKT21
isnatrequirsd.
FIGURE 31 -HOXB WIRING
-21-
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