Instruction manual

Clear-Com Communication Systems
ICS 92/52 Intercom Panel Instruction Manual
3-20
Figure 3-13: Schematic—ICS-52/52T Selector Switch Assembly Rev. C
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
C
00Friday, October 01, 1999
Size Document Number Rev Date: Sheet of
C2
22uF
+
C3
22uF
+
C4
22uF
+
R1
100K
C1 .1uF
J1 J2
J3
J4
C3
.1uF
C4
.1uF
IC1
87C751
C1
10uF
+
C2
.1uF
IC2
UCN5821A
IC3 UCN5895A
R7
100
R8
100
R9
8.2K
R3
100
R1
100
R2
100
R10 200 R11 200 R12 200 R13 200
R14
2.2K
R15
2.2K
D11 D12
C6
22pF
C5
22pF
Y1 8.000MHz
D3 D4 D5 D6
R4 100K
R5 100K R6 100K
R16
2.2K
R17
2.2K
D7 D8
S3 S4 S5 S6 S7 S8
J1
J2
D5 D6 D7 D8
JP1
D9 D10 D12D11 D13 D14 D15 D16
IC2
SCD55104
IC3
SCD55104
IC4
SCD55104
+5V +5V +5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
1 2 3 4 5 6 7 8 9
10
1 2 3 4 5 6 7 8 9
10
1 2 3 4 5 6 7 8 9 10
1
2
3
4
5
6
7
8
9
10
VCC
24
X1
11
X2
10
RST
9
P1.7
20
P1.6
19
P1.5
18
P1.4
17
P1.3
16
P1.2
15
P1.1
14
P1.0
13
VSS
12
P3.7
21
P3.6
22
P3.5
23
P3.4
1
P3.3
2
P3.2
3
P3.1
4
P3.0
5
P0.0
8
P0.1
7
P0.2
6
VDD
4
DIN
2
VSS
3
GND
8
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
OE
7
ST
6
CL
1
DO
5
VDD
15
DIN
3
VBB
13
GND
1
1
5
2
6
3
7
4
8
5
9
6
10
7
11
8
12
DO
16
CLK
2
ST
4
OE
14
1 2 3 4 5 6 7 8 9
10
1
2
3
4
5
6
7
8
9
10
1 2 3
CL
1
D
27
L
2
VCC
23
VCC
20
VCC
19
VCC
9
VCC
6
/R
13
CLI/O
15
/CLSEL
16
GND
28
GND
14
CL
1
D
27
L
2
VCC
23
VCC
20
VCC
19
VCC
9
VCC
6
/R
13
CLI/O
15
/CLSEL
16
GND
28
GND
14
CL
1
D
27
L
2
VCC
23
VCC
20
VCC
19
VCC
9
VCC
6
/R
13
CLI/O
15
/CLSEL
16
GND
28
GND
14
GR G R GR R GR G R
SW3
SW4
SW5
SW6
SW7
SW8
DATE
DATE DATE
DWN CHK
APP
ORCAD P/N - PLOT SIZE -
SCALE SIZE DWG NO. REV
TITLE:
SCHEMATIC
CLEAR-COM
INTERCOM SYSTEMS
R
CLARK MCCOY
LEDS ABOVE THE SELECTOR SWITCHES
30 CHARACTER DISPLAY ABOVE THE SELECTOR KEYS
720187-SCH-C-
C
C
-----
09/14/94
ASSY. #710347
ICS-52 DISPLAY PCB
UP DOWN
ASSY. #710346
ICS-52 SELECTOR SW. PCB
ICS-52 FRONT
PANEL DISPLAY ASSEMBLY
S3 = ANSWERBACK KEY
S4 - S8 = TALK/LISTEN 1 - 5
G
S3-S8
720187SC.ORC
C
DESCRIPTIONREV ECO# DATE BY CHK
A 2132 RELEASE
11/1/94 HCP
B 2157 ADD JP-1 03/23/95 CM
STANDARD KEYPANEL SOFTWARE OPTION JUMPER
C 2303 CHANGE R14-R17 06/10/96 CM