Clear-Com ICS-2003 - Page 54

ICS-2003 INTERCOM STATION
3-20
Figure 19: Schematic—OPT-100 (Aux Audio Option) Rev. A
ANALOG GROUND ANALOG GROUND TALK BUS -15V -15V +15V +15V ANALOG GROUND ANALOG GROUND SA CONTROL
DIGITAL GROUND
-15V +15V
25
26
24
23 22
21
20
19
18 17
16
15
14
13 12
11
10
9
8 7
6
5
4
3 2
1
1K 1K
OTHERWISE SPECIFIED
CHK.
BYDATEDESC.ECO#
BEFORE PLATING
TOLERANCE: UNLESS
TITLE:
intercom systems
R
REV
NO.
DWG
APP CHK DWN
DO NOT SCALE DRAWING
ANGLE +/-
REV
SCALE
DATE DATE DATE
.XXX +/-
ACAD P/N - PLOT SIZE-
SIZE
SCHEMATIC OPT-100
710327-SCH-C-
A
B. DOUGLAS
1/4/89
710327SA.DWG
C
1=1
.015
1˚
A
2074
RELEASE TO PRODUCTION
1/19/94
HCP
HOLES +/- .003
ACAD ARCHIVE
1=1
APR.
NOTES: (UNLESS OTHERWISE SPECIFIED)
1. ALL DIODES ARE 1N4148. 2. ALL CAPACITOR VALUES ARE LISTED IN MICROFARADS. 3. ALL RESISTORS ARE 1/4W, 5%, LISTED IN OHMS. 4. = ANALOG GROUND
= DIGITAL GROUND
8 7
6
5
1
15
14
13 12
3
4
2
9
10
11
HOT MIC OUT
LINE OUT
SA OUT
DB15F
1K
23 25
21
19
17 15 13
11
9
7 5 3
1
2
4
6
8
10 12
14
16
18
20 22
26
24
TOP VIEW
1K 1K 1K
MPS-
A55
+15V
15K
15K
MPS-
A05
1N4001
15K
4.7K
-15V
J
Q
D R
NOT USEDLAST USED
REFERENCE DESIGNATORS
10
1
2 2
T K
3 2
SA N.C.
SA WIPE
SA N.Q.
J1
LINE OUT
R1
R2
R3
R4
R5
R6
T1
T2 T3
K1
K2
Q1
R7
R8
Q2
D1
R10
R9
J2