AI
(0-11)
BL
(
Y
-BR
)
1
(BRJ
(
NOTE
)
NOTE:
A O O KS-15724, L1 OIOOE
(
I
CURRENT COLOR COOE
[ l
MO COLOR CODE
t
INDICATES LEAD INVOLVED
IN MODIFICATION
Fig. 1 -Station Busy Lamp Circuit (Without I Hold
Feature)
AI (0-11)
KS-15724,LI
DIODE
SP
(
G-Y
)
ADD
S
T
R
A
P
(Yl+
(0-BKl+
(WI
•
L E A D S INVOLVED IN MODIFICATION
@
WITHOUT STATION BUSY LAMP
G)
WITH STATION BUSY L AMP
LS
LINE SWITCH
H
HOLD KEY
( I
C U R R E N T COLOR CODE
[
)
M D COLOR CODE
Fig. 2
-1
Hold Arrangement
ISS 3, SECTION 502-541-407
TABLE A
PICKUP-SIGNAL KEY CONVERSION
564HK/HL
CONVERTIBLE
KEY LEADS
KEY
OPTIONS (NOTES)
BR
Y-BR
S-R
HPPPPP
M
M
M
HPPPPS
M
M
M
HPPPSS
M
M
SG
HPPSSS
X
M
SG
HPPP*P*S*
X
M
5H
HPP*P*P*S*
X
X
5H
BR-BK
X
SG
X
X
N
N
* These pickup key options are used on private
or intercommunicating lines with the signal key
common to each line. The signal key, under con
trol of the line switch, will ·operate the signal
circuit of each line when associated pickup key
is depressed. Use S lead on 2nd, 3rd, or 4th
pickup key as required.
Notes:
1. All convertible key positions are arranged
in the factory as pickup positions. To con
vert a key position from pickup (locking)
to signaling
(nonlocking), remove the
P-12A892 screw detail from plunger at the
key position to be converted. Make neces
sary connection changes as shown in Table
A. To convert a key position from nonlock
ing to locking, insert P-12A892 screw de
tail.
2. When keys are converted for signaling, the
S lead of key involved provides the signal
circuit and SG lead provides the common
signal ground.
Page 3
BSP S02-S41-407-i03_1973·06·03.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 02,2012 19:09:53
