Table of Contents
Advertisement
SECTION 518-4 1 1 - 1 00
J1
J2
J3
A
A
A
t-
t-
"'
""
""
""
CD
co
....
....
co
co
J1
J2
J3
8
8
8
484A KTU-STA TION CIRCUIT
485A KTU-CONTROLLER CIRCUIT
48SA KTU-SERVICE CIRCUIT
487A KTU-BATTERY FEEO CIRCUIT
A. 572A1 KSU-FRONT VIEW
TERI'II N AL
B. 572A 1 KSU-REAR V IEW
restored will be out of service until they go
on-hook momentarily.
B.
485A KTU-Controller Circuit
The controller circuit processes the calls
2 . 1 5
and features through the system. Contained
on the board are the central processing unit,
Page 6
BSP 518-411-100 -i01 1978-08-06. jpg
J4
JS
JS
J7
J8
JS
J 1 0
A
A
A
A
A
A
A
"'
"'
N
N
t-
"'
....
I
I
I
co
N
CD
N
N
""
""
�
�
�
""
""
""
""
""
,..._
....
co
co
....
t-
"'
t-
t-
"'
t-
"'
"'
t-
"'
J4
JS
JS
8
8
8
8
8
8
8
206A
POWER
UNIT
Fig. !-Layout of 572A I KSU
Scanned by Frank Harrell, Cowboy Frank) Castle Rock, Colorado Oct 15, 2012 20:56:31
J 1 1
J 1 2
J 1 3
J 1 4
J15
J16
J 1 7
A
A
A
A
A
A
A
"'
"'
"'
,..._
It)
....
....
"'
"'
It)
I
I
I
I
I
....
I
I
"'
0
"'
co
N
....
....
CD
0
"'
It)
It)
""
""
""
""
""
""
""
t-
t-
t-
t-
t-
"'
"'
"'
t-
"'
"'
"'
"'
484A KTU
8
8
8
8
B
B
20SA
POWER
UNIT
488A KTU-LINE INTERFACE CIRCUIT
489A KTU-TOUCH-TONE OECOOER
KS-2165 1 , l 4-FUSE BOARO
PAGING
ACCESS
SWITCH
POWER
CONNECTOR
memory, timing circuits, and the
regulator.
The 485A KTU is installed in J2.
C.
486A KTU-System Service Circuit
The service circuit performs the following
2 . 1 6
functions.
J18
J 1 9A
J21A
J23A
J25A
A
....
N
CD
co
I
I
I
I
"'
I
�
It)
,..._
It)
""
w
w
w
w
z
z
z
z
"'
- 488A KTU-
B
B
J258
CIRCUIT
STATIONS
SWITCH
-lOY
J27
....
CD
"'
voltage
Advertisement
Table of Contents
