Bell System Practices 830 Connections page 2

SECTION 5 12-740-470
Danger:
retaining
outlet cover screw BEFORE attempting
to install
power unit and any other cord plugged
into the
unplugged
B EFORE
remove the
will prevent the possibility of a loosened
retainer clamp or metallic outlet cover
making contact
on the 85Bl power unit when partially
withdrawn from outlet.
retaining clamp on outlets where cover
mounting screw holds the duplex outlet
in the box
Warning:
trim and
830DM, 831DM, 2830DM,
2831DM, or 830CM, 831CM,
2830CM and 2831CM
(
MFR after 1-77
830CM
831CM
2830CM or 2831CM
Before 2-77
Note: The new line switch can be identified by two additional leads which are
(BL). No modification is required on sets equipped with old line switch [no
(BL) leads].
Page 2
512-740-470-i06_1979-09·02.jpg
BSP Scanned by Frank Harrel!, (Cowboy Frank) Castle Rock, Colorado
•For safety, securely attach
clamp to ac outlet
85Bl power unit.
ac outlet should always
completely f r o m
attempting to attach
retaining clamp.
with the ac
Do not use
.•
•care should be
dress leads connecting
SPEAKERPHONE MODIFICATION FOR TELEPHONE SETS
EQUIPPED WITH NEW LINE SWITCH (NOTE)
TELEPHONE
SET
)
)
(
MFR Before 2-77
)
(
MFR Before 2-77
(
MFR
)
low voltage output terminals of 85Bl
using power unit to assure that inadvertent
connection
The other
If
be plugged
outlet power
or one
This units.
power strips with
r a ting
prongs continuous terminal power strip that
allows the secondary output terminals
of
proximity to the ac line source is not
recommended
taken to
to
HABLE A.
LEAD REMOVE FROM
COLOR
G
G
G
G
G
23, 2012 22:43:49
Feb
to conducting
power source does
m o r e t h a n o n e p o w e r
into a multiple
strip, there must be
inch separation between
Only UL listed
adequate
shalJ b e used.
the power unit to
.•
CONNECT TO
TERM.
TERM.
16 8
F
16
16 F
16
8
surfaces or
not occur.
unit i s
receptacle
at least
power
receptacle
power
Use o f a
be in close