Clear-Com Communication Systems
ICS-102/62 Intercom Panel Instruction Manual
3-5
Figure 3-8: ICS-102 Main PCB Schematic Rev D (part 1)
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
D0
3
D1
4
D2
7
D3
8
D4
13
D5
14
D6
17
D7
18
OC
1
CLK
11
Q0
2
Q1
5
Q2
6
Q3
9
Q4
12
Q5
15
Q6
16
Q7
19
RO
6
/RO
5
REF
1
SEN
7
VCC
8
RIN
2
CT
3
GND
4
8
15
7
14
6
13
5
12
4
11
3
10
2
9
1
3
2
1
5
9
4
8
3
7
2
6
1 910
3
2
1
54
1415
32
1112
76
12
13
11
1
2
3 4
5
6
1
2
3
9
10
8
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
A13
26
A14
27
%%oCE%%o
20
%%oOE%%o
22
VPP
1
O0
11
O1
12
O2
13
O3
15
O4
16
O5
17
O6
18
O7
19
OUT
1
IN
3
GND
2
3
2
1
VI
GND
VO
VI
GND
VO
1
2
3 3
2
1
TAL
08
XTAL
07
/NMI
18
/IRQ
19
PA0
34
PA1
33
PA2
32
PA3
31
PA4
30
PA5
29
PA6
28
PA7
27
PD0
20
PD1
21
PD2
22
PD3
23
PD4
24
PD5
25
VRL
51
/RES
17
VRH
52
VDD
26
MODA
03
MODB
02
VSS
01
A/D0
09
A/D1
10
A/D2
11
A/D3
12
A/D4
13
A/D5
14
A/D6
15
A/D7
16
A8
42
A9
41
A10
40
A11
39
A12
38
A13
37
A14
36
A15
35
AS
04
E
05
R/W
06
PE0
43
PE1
45
PE2
47
PE3
49
PE4
44
PE5
46
PE6
48
PE7
50
D0
3
D1
4
D2
7
D3
8
D4
13
D5
14
D6
17
D7
18
OC
1
G
11
Q0
2
Q1
5
Q2
6
Q3
9
Q4
12
Q5
15
Q6
16
Q7
19
12
13
11
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
A13
26
A14
1
%%oCS%%o
20
%%oOE%%o
22
%%oWE%%o
27
D0
11
D1
12
D2
13
D3
15
D4
16
D5
17
D6
18
D7
19
9
10
8
4
5
6
R37
22 1W
R38
22 1W
C25
.1uF
C26
.1uF
IC12
74HC374
C8
.1uF
C9
.1uF
C10
47uF
16V
+
IC6
TL7705AP
R5
10K
R6
3.3K
R8
3.3K
D1
1N4001
D2
1N4001
R9
100K
R10
10K
K1
K2
J1
Q1
MPSA13
R11
100K
R12
10K
R13
100K
R14
10K
C11
.01uF
J2
IC7D
4050
Q2
MPSA13
IC7B
4050
IC7F
4050
IC7A
4050
R39
220
R40
220
R41
220
IC7E
4050
IC7C
4050
R15
2.2K
R16
10K
IC24D
74HC00
IC24A
74HC00
IC24B
74HC00
IC3A
74HC00
R17
1K
C12
1uF MONO
R18
47
R19
47
C14
.1uF
IC24C
74HC00
R7
3.3K
C3
.1uF
R4 10K
IC8
29C256
C7
.01uF
C81
.1uF
D3
6.8V ZD
R24
2.2K
R25
10K
D4
D5 D6
R26
100
D7
1N4001
IC9
LM317T
D8
1N4001
R27
240
R28
2.4K
R29
2.4K
R30
240
R20
10K
Q3
MPSA13
R21
470K
R22
220K
C13
.022uF
R23
4.7K
D9
1N4001
D10 1N4001
R31
100
D11
D12D13
D14
6.8V ZD
R32
2.2K
R33
10K
IC10
LM337T
C15
1000uF
+
D15
1N4001
IC11
7805T
R34
22 1W
C16
100uF 25V
+
C17
100uF 25V
+
C18
100uF 25V
+
C19
220uF 25V
+
C20
220uF 25V
+
Q4
MPSA55
Q5
MPSA05
C23
4700uF
+
C24
4700uF
+
R35
0 ohm
C21
4700uF
+
C22
4700uF
+
D17
1N5401
D16
1N5401
R1
10M
C1
27pF
C2
27pF
Y1
8.000MHz
R2
3.3K
IC1
68HC11
IC2
74HC373
IC3D
74HC00
IC4
74HC138
IC5
62C256L
R36
0 ohm
F1
.90A POLY
IC3C
74HC00
C4
.1uF
R3
3.3K
C5
.1uF
IC3B
74HC00
C6
.1uF
+5D+5D
+5D +5D +5D
+5D
+15A-15A
+5D
+5D
+5D
+5D
+5D
+5D
+5D
+5D
+5D
+5D
+5V
+5D
+5D
+5D
+15A
+15A
+5VD
-15V
+15V
LISTEN AUDIO
POT DATA
POT CLK.
POT RESET
+PRG-IN
-PRG-IN
HEAD SENSE
TALK AUDIO
BEEP
/TALK EN
SER DATA
SER CLK
SER RESET
/LIST EN
A6 AD6 A0 AD0 AD0 A0
A4 AD4 A1 AD1 AD1 A1
A2 AD2 A2 AD2 AD2 A2
A0 AD0 A3 AD3 AD3 A3
A1 AD1 A4 AD4 AD4 A4
A3 AD3 A5 AD5 AD5 A5
A5 AD5 A6 AD6 AD6 A6
A7 AD7 A7 AD7 AD7 A7
A8 A8
AD0 A9 A9
AD1 A10 A10
AD2 A11 A11
AD3 A12 A12
AD4 A13 A13
AD5 A14 A14
AD6
AD7
A8 AS
A9
A10
A11
A12 A15
A13
A14
A15
AS A14
E
R/W
PE0
PE2 E
PE3 IRQ
PE4 R/W
PE5 AD0
PE6
PE7 AD1
AD2
AD3
AD4
AD5
AD6
AD7
A11
A12 R/W
/RST
A13 E
A14
A15 AS
A0
A1
A2
A3
AD0
AD1
AD2
AD3
AD4
AD5
AD6
PE0
PE2
PE3
PE4
PE5
PE6
PE7
VCC GND
VCC GND
VCC GND
(A8-A15)
(A0-A7)
(AD0-AD7)
(/RD)
(/WR)
8
16
(H4000-H7FFF RAM SPACE)
20
10
14
28
14
28
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
(CONTROL BUS)
(CONTROL BUS)
/CE0
/CE1
R/W
AS
TALK AUDIO
LISTEN AUDIO
D GND.
D GND.
A GND.
A GND.
+5D
+5D
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
COMMUNICATIONS
MODULE
TP2
TP1
(AUX. RELAY)
(MUTE RELAY)
MISC.
CONNECTOR
DB-15F
HEAD SENSE INPUT
ANNOUNCE TONE OUT
FOOT SW INPUT
EXTRA LOGIC INPUT
XP PANEL DATA RETURN
XP/AUDIO DATA OUT
XP/AUDIO CLOCK
LOGIC GND.------
LOGIC GND.------
EXTRA LOGIC IN--
FOOT SWITCH IN--
MUTE RELAY N.C.-
AUX. RELAY N.C.-
MUTE RELAY WIPE-
AUX. RELAY WIPE-
MUTE RELAY N.O.-
AUX. RELAY N.O.-
+PROGRAM INPUT--
AUDIO GND.------
-PROGRAM INPUT--
XP PANEL UNREG +VOLT.-
XP PANEL UNREG +VOLT.-
XP PANEL GND. --------
XP PANEL KEY DATA-----
XP PANEL GND. --------
XP PANEL RESET OUT----
XP PANEL CLOCK OUT----
XP PANEL DATA OUT-----
NO CONNECT------------
TO EXTRA
KEY PANELS
DB-9
POT SERIAL DATA OUT
POT SERIAL CLOCK
POT SERIAL RESET
POT SERIAL DATA OUT
POT SERIAL CLOCK
POT SERIAL RESET
HEAD SENSE INPUT
TO SHEET 2
ANALOG CIRCUITS
DATE
DATE
DATE
DWN
CHK
APP
ORCAD P/N -
PLOT SIZE -
SCALE SIZE DWG NO. REV
TITLE:
SCHEMATIC
CLEAR-COM
INTERCOM SYSTEMS
R
DESCRIPTIONREV ECO# DATE BY CHK
05/12/93
Clark McCoy
SHEET #1
D
D
--------
+15V ANALOG SUPPLY
-15V ANALOG SUPPLY
ANNOUNCE TONE OUTPUT
JP2
MUTE RELAY OUTPUT
AUX. RELAY OUTPUT
TP3
E
/RST
IRQ
XP RESET
AUDIO RESET
XP/AUDIO DATA OUT
XP/AUDIO CLOCK
XP RESET
AUDIO RESET
XP/AUDIO DATA OUT
XP/AUDIO CLOCK
8
1
14
27
28
29
30
31
32
33
34
A GND.
A GND.
+5D
A0
A1
A2
A3
/TALK EN
/LIST. EN
ICS-102 MAIN BOARD
EXTERNAL
POWER
TRANSFORMER
14 VAC
1
2
SOURCE
SOURCE
DIGITAL SOURCE
EXTRA KEYS & LEDS
ON FRONT PANEL
ANS BACK DW
MIC ON
PANEL MIC
SPEAKER ON
ANS BACK DW
MIC ON
PANEL MIC
SPEAKER ON
CALL WAITING
CALL WAITING
4
2
13
7
8
14
5
6
3
1
9
11
12
10
15
16
RESET SWITCH
CWLISTEN
LEVEL
5K
TO SHEET 2
ANALOG CIRCUITS
710304-SCH-D-
1
2
3
4
5
6
7
8
9
10
J3
J4
J5
J6
SER DATA
SER CLOCK
+ SUPPLY
+ SUPPLY
RESET
GND.
GND.
KEY DATA
UNUSED
UNUSED
FRONT
PANEL
SELECT
KEYS
DIGITAL
GROUND
SOURCE
ANALOG
GROUND
SOURCE
+15V
-15V
AGND
DGND
+5D
20
10
(/H3000-H37FF)
(/H3800-H3FFF)
(H2000-H27FF)
(E)
(E)
RP-1
10K
53 6742
1
7
14
LAST USED DESIGNATORS
C81
D19
F1
IC24
J2
K2
P2
R105
Y1
BH
D
A RELEASE 6/16/931841
P1
SW-4
SW-3
SW-2
SW-1
R1
1K
R2
1K
R3
1K
R4
1K
R5
1K
R6
1K
D1
D2
D3
D4
D5
D6
FUNCTION SWITCH PWB P/N 710306
B 2059 ADD C82 10/12/93 MP
C 2176 REVISED 12/20/95 BH
7103041D.ORC
D 2365 FLASH ROM ADDITION 04/28/97 CM
LISTEN LEVEL
LISTEN LEVEL
/RST
/RST
IRQ
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