Clear-com FOR-22 User Manual download pdf (Page 19)

Vitec Group Communications

FOR-22 Dual 4-Wire Interface Instruction Manual

3-3

SCHEMATIC FOR FOR-22 MODULE PCB

Figure 3-2: Schematic for FOR-22 Main Board PCB (Part No. 710572)

MATRIX

FROM

IFB

CALL

RECEIVE

4-50VDC EITHER

POLARITY

4-8mA

IFB

MIC

LINE

SEND

MATRIX

CALL

RECEIVE

MIC

LINE

CCW

MATRIX

4-50VDC EITHER

POLARITY

FOR CALL LOGIC

RECEIVE

FOR CALL LOGIC

RECEIVE

4-8mA

CCW

RECEIVE

MATRIX

RECEIVE

CCW

* R113

NOT

LOADED

MATRIX SEND

FROM

CCW

*R213

NOT

LOADED

CHANNEL

TO LEVEL

DETECT

PCB

SEND

CALL

CH. A

CH. B

CH. A CH. B

MATRIX

-8V

+8V

-8V

+8V

-8V

+8V

-8V

+8V

-8V

+8V

-8V

+8V

-8V

+8V

T102

AUDIO 10K : 10K

JP100

LEVEL SELECT JUMPER

C111

.1 uF

Q104

MMBTA56

R132

10.0K

1 2

R212

R109

221

C219

33 pF

1 2

R111

R112

C205

33 pF

1 2

R113

R121

4.75K

1 2

R124

4.75K

1 2

C215 33 pF

1 2

R117

10.0K

1 2

R115

100

1 2

IC104B

LM833

D103

BAW56

1 2

P102

50K

R221

4.75K

1 2

R204

27.4K

1 2

C102

.22 uF

1 2

D203

BAW56

1 2

Q204

MMBTA56

IC203

MOC211

5 6

R213

C117

.1 uF

C113

22uF

35V

IC101A

LM833

R106

10.0K

1 2

C110

33 pF

1 2

R118

56.2

1 2

R125

82.5

1 2

D102

BAV99

C207

33 pF

1 2

C101

.22 uF

1 2

R101

27.4K

1 2

T201

AUDIO 600 : 600

2 11

5 8

C218

.1 uF

1 2

IC101B

LM833

C211

.1 uF

R208

2.74K

Q201

MMBT2222A

D201 BAV70

JP200

LEVEL SELECT JUMPER

R203

27.4K

1 2

R224

4.75K

1 2

C107

33 pF

1 2

R228

47.5K

LED101

AMBER

R215

100

1 2

R220

4.75K

1 2

IC201A

LM833

R229

150

1 2

RL101

T101

AUDIO 600 : 600

2 11

5 8

C202

.22 uF

1 2

R211

GF1A

2 1

R103

27.4K

1 2

IC102A

LM833 SOIC

C209

.22 uF

R110

10.0

R102

27.4K

1 2

Q202

MMBT5551

R120

4.75K

1 2

R205

10.0K

1 2

R219

56.2

1 2

R227

10.0K

1 2

IC202B

LM833

R209

221

D104

BAW56

1 2

EURO 64 M

10A

10C

11A

11C

12A

12C

13A

13C

14A

14C

15A

15C

16A

16C

17A

17C

18A

18C

19A

19C

20A

20C

21A

21C

22A

22C

23A

23C

24A

24C

25A

25C

26A

26C

27A

27C

28A

28C

29A

30A

30C

31A

31C

32A

32C

29C

R104

27.4K

1 2

R225

82.5

1 2

R105

10.0K

1 2

R126

10.0K

1 2

IC204B

LM833

C204

.1 uF

Q101

MMBT2222A

IC201B

LM833

R231

10.0K

1 2

C106

.1 uF

C214

.1 uF

Q102

MMBT5551

P202

50K

C217

.1 uF

C203

33 pF

R226

10.0K

1 2

Q103

MMBT2222A

C104

.1 uF

R130

1.00k

1 2

R201

27.4K

1 2

D101 BAV 70

R202

27.4K

1 2

C112

22uF

35V

D202

BAV99

C118

.1 uF

1 2

RL201

R131

10.0K

1 2

R123

10.0

T202

AUDIO 10K : 10K

IC202A

LM833

R108

2.74K

C103

33 pF

IC204A

LM833

IC102B

LM833

R128

47.5K

LED201

AMBER

R232

10.0K

1 2

C210

33 pF

1 2

IC103

MOC211

5 6

R230

1.00k

1 2

C115 33 pF

1 2

R129

150

1 2

Q203

MMBT2222A

R218

56.2

1 2

C119

33 pF

1 2

R122

10.0

R114

10.0K

1 2

R116

10.0K

1 2

R206

10.0K

1 2

R127

10.0K

1 2

C206

.1 uF

IC104A

LM833

GF1A

2 1

P101

50K

C105

33 pF

1 2

R217

10.0K

1 2

R214

10.0K

1 2

C201

.22 uF

1 2

C114

.1 uF

D204

BAW56

1 2

R119

56.2

1 2

C109

.22 uF

P201

50K

R210

10.0

R216

10.0K

1 2

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 27 28

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Clear-com FOR-22 User Manual Page 19

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