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PRACTICE 512-6261-200
CONTROL MODULE
, - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
DESIG.
CONN
.
PIN
NO.
FUNCTIONS
I
I
I
I
I
I
_ _ ---j..,_ _ _ _ _ _ _ _ _
.,.8
CONTROL.
I
BL
>
STATION BUSY LAMP
I
_.,__.,__..,_..,. __________ L_K _ _ _ ___.13
AUTOMATIC CUTOFF
I
OF HANDSFREE UNIT
WHEN TRANSFERRING
I
TO
HANDSET.
" LK"
TO
I
BREAK
CONTACT.
_ _ _ _ _ A_G_
,
A _ _ _ ...,.2
KEY TELEPHONE SYSTEM
I
GND,A1
OFF
"A"
LEAD CONTROL
I
LK1
AUTOMATIC CUTOFF
.
. . . . . ~~-----~----------------•s
"LK1"
TO MAKE CONTACT
I
A1
ON LINE
SWITCH.
I
HANDSFREE
CIRCUITRY
MUTE
ON
OFF
[i][m:J~
n
nun
M
LK ONLM OFF
M3
I
.............. - • - - - - - - - R _ 1 _ _ _ ..,.11
I
t-+-. .
~-A--------T1.;.._ _ _ _ , . 3
M4
TO TELEPHONE SET
FOR CO OR PBX LINE
CONNECTIONS.
_ _ _ _ _ _ _ _ _ _ P_4_
,
1_T _ _ _ _
12
)
ON-HOOK DIALING,
R
ROTARY DIAL SHUNTS
_ _ _ _ _ _ _ _ _ _ _ P_ 3 ...,
•
1 - - - - - 4
OR DIGITONE
DIALING.
MB 2 i - - - - - - - - - - M = B 2 ______
: : } AUXILIARY TRANSFER
CONTACTS.
B2
_ _ _ _ _ _ _ _ _ _ .....,. _ _ _ _ ,.15
M2
L-------------------------------~
Fig.
6 -
Connections for block
diagram
of control module equipped with
a
15-pin connector
Page 29
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