Bell System Plant Series Connections

BELl SYSTEM PRACTICES
Plant Series
SECTION 502-525-423
Issue 2, June 1968
AT&TCo Standard
TELEPHONE SETS - 1563HB
CONNECTIONS
1. GENERAL
1.01
This section covers connection information
for the 1563i-IB telephone set. Modifica-
tions to provide optional service features are also
cov.ered.
1.02
This section is 1·eissued to include infor-
mation on current production sets using
25-W3 TOUCH-TONE® dials. Since this reissue
covers a general revision, arrows ordinarily used
to indicate changes have been omitted.
1.03
The 1563HB telephone set is factory-wired
for 1A1 and 1A2 key telephone system
line circuits. Set can be used with 1A KTS pro-
vided wiring modifications are made (see Table
A).
1.04
Line exclusion can be provided by the in-
stallation of a D-179935 Kit of Parts
(ordered separately). See Part 2 and Section
502-525-112 for installation procedures.
1.05
Due to set design the optional general use
kits of parts for polarity guard and sta-
tion busy lamp features can not be used with
present production 1563HB telephone sets. Sta-
tion busy indication, showing that the handset
is off-hook or that the headset jack is occupied
(but does not indicate that a line button is de-
pressed), can be arranged by installation ·of a
KS-15724, List 1 diod,e (see Table B). No pol-
arity guard kit is provided for this set.
2. MODIFICATION
LINE EXCLUSION
2;01
Install D-179935 Kit of Parts as follows :
(1) Remove faceplate and housing (see Sec-
. tion 502-525-112 for procedure).
(2) Insert tangs of long brac:[<et into the two
T -slots precut in the line·· switch bracket.
Insert the screw into the tapped hole in the
bracket and tighten screw to secure bracket.
(3) . Place switch assembly on bracket with
spring contacts oriented to left side of set.
Secure by hooking wire spring over T on rear
of bracket and projections on either side of
bracket (see Section 502-525-112 for deta.ils).
( 4)
Make connections as shown in Table B.
(5)
Remove hand hold cover (in housing) and
replace left side plunger with plunger
from kit. Replace cover.
(6) Install housing· and faceplate.
•
BUZZER
2.02
Install KS-8109, List
2
buzzer (ordered
separately) as follows:
(1)
Remove faceplate and housing (see Sec-
tion 502-525-112).
(2) Mount buzzer to two taped holes located
above headset jacks and secure using two
screws and insulating washers.
Note:
Metal case of buzzer must be insu-
lated from set baseplate.
(3) Make connections for type of buzzer op-
eration required as follows:
Note:
For common line buzzer, (BK) ringer
lead and (S) strap lead must be discon-
nected at RR and RT terminal of key termi-
nal strip. These leads can be transferred to
R
and T of any line to provide line ringer
with common buzzer or insulated and stored
if ringer is not used.
(a) For AC operation use M1W cords or
strap wire to connect terminal A of buz-
zer to RT of key terminal strip and termi-
nal C of buzzer to RR of key terminal strip .
(b) For DC operation use Ml W cords or
strap wire to connect frame of buzz~r
©American Telephone and Telegraph Company, 1968
Printed in U.S.A. Page 1