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Jands Electronics P/L

40 Kent Rd

Mascot  NSW  2020

Australia

Ph (02) 9582-0909

2

3

5-May-2000 

10:52:32

H:\Lab\Dd8\Dmxd3.sch

Title

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Number:

Date:

File:

Revision:

Sheet

o

f

Time:

A3

DD8 DMX ISOLATOR

dmxd3.sch

Drawn By:

C5

10uF

PTC2

A870

PTC1

A870

MOV2

1.5KE12CA

MOV1

1.5KE12CA

PTC3

A870

PTC4

A870

MOV3

1.5KE12CA

MOV4

1.5KE12CA

R26

10K

R9

1K5

R25

2K2

R3

2K2

D1

BAV21

C7

10uF

DB1

DB101

F1

250mA

T1

D3

BAV21

L2

SIGNAL

C8

1nF

Q2

BC337

IC1

75176

P1

RXE030

C2

470uF

C3

470uF

Vin

1

GND

3

+5V

2

REG1

LM7805CK

D2

BAV21

C1

47nF

C4

100nF

Q3

BC337

Vin

1

GND

3

+5V

2

REG2

LM7805CK

C12

470uF

P2

RXE030

T1A

DB2

DB101

C11

10uF

C6

100nF

C10

100nF

IC2

75176

OPTO1

6N137

OPTO6

OPTO2

OPTO3

OPTO4

OPTO7

OPTO8

Q1

BC337

OPTO5

R4

100R

L1

RED

R5

1K

R7

33R

R6

33R

R8

2K2

R2

1K

R1

47K

C9

100nF

P2,3,4,5,6,7,8,9

IC2,3,4,5,6,7,8,9

OPTO1,2,3,4,5,6,7,8

REG2,3,4,5,6,7,8,9

DB2,3,4,5,6,7,8,9

PTC3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18

MOV3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18

C10,C14,C18,C22,C26,C30,C34,C38

C12,C16,C20,C24,C28,C32,C36,C40

C11,C15,C19,C23,C27,C31,C35,C39

C9,C13,C17,C21,C25,C29,C33,C37

R9,R10,R11,R12,R13,R14,R15,R16

8

1

2

3

4

5

7

6

Input

Mains

L

N

E

DMX Input

+

-

SH

5

4

3

2

1

8

6

7

x8 channels

5pin

Male AXR

AXR1

2

3

5

6

7,8

AXR2

DMX OUTPUT

+

-

SH

GREEN

1W

1

3

2

3

2

1

9x9v

outputs

5pin

AXR

FEMALE

240/110

fuse switchable

PWR

Note: For models with serial numbers below D98xxx

OPTO1 thru 8 = 6N135. R9 thru R16 selected during test

for minimum skew (less than 200nsec).

Summary of Contents for DD-8

Page 1: ...JANDS DD 8 O p t o I s o l a t e d D M X S p l i t t e r Operating Manual Version 2 0...

Page 2: ...to change without notice and does not represent a commitment on the part of the vendor JANDS ELECTRONICS P L shall not be liable for any loss or damage whatsoever arising from the use of information o...

Page 3: ...ng Started 6 3 1 Setting the input voltage 6 3 2 Connecting power 6 3 3 Connecting DMX 512 input 6 3 4 Connecting DMX 512 outputs 6 3 5 Power up sequence 6 4 0 Operating Notes 7 5 0 Technical Aspects...

Page 4: ...such faults Since these faults can occur in all systems the DD 8 is equally suitable for all touring theatre exhibition and trade show applications In addition including the DD 8 in a DMX system make...

Page 5: ...indicator shows when mains power is applied to the DD 8 4 DMX Outputs A standard 5 pin AXR connector outputs opto isolated DMX 512 signal to the DMX 512 receivers The same signal appears on all eight...

Page 6: ...to a 3 pin earthed power source Use of 2 pin non earthed power sources will reduce the ability of the DD 8 to protect against high voltage shield faults 3 3 Connecting DMX 512 input The DD 8 input sig...

Page 7: ...mmer group to isolate that group Outdoor shows where the console is run from a different power supply to the dimmers In this case the DD 8 should be placed just before the input to the first receiving...

Page 8: ...also drives the signal indicator LED L2 via positive edge detector network C8 R26 R8 D3 transistor driver Q1 and pulse lengthener C5 This circuit will respond to signals with high repetition rates and...

Page 9: ...overvoltages of up to 250 volts AC 3 The DMX input shield pin 1 is floated from earth by a 47K 1W resistor and 47nF RF bypass capacitor 4 The eight DMX output shields pin 1 are connected directly to c...

Page 10: ...11 10uF C6 100nF C10 100nF IC2 75176 OPTO1 6N137 OPTO6 OPTO2 OPTO3 OPTO4 OPTO7 OPTO8 Q1 BC337 OPTO5 R4 100R L1 RED R5 1K R7 33R R6 33R R8 2K2 R2 1K R1 47K C9 100nF P2 3 4 5 6 7 8 9 IC2 3 4 5 6 7 8 9 O...

Page 11: ......

Page 12: ...urce Reduce ambient temperature Check source patch settings Check receiver address settings 5 3 Miscellaneous Notes The protection circuitry will protect the DD 8 DMX line receiver drivers against dam...

Page 13: ...Note that such spaces may be necessary to prevent the ambient temperature from rising above the maximum if other heat producing devices are mounted in the same rack No rear mounting is necessary due...

Page 14: ...o any output 500VAC Isolation between outputs 500VAC Protection between input pins 250VAC Protection from input to earth 250VAC Protection between output pins 250VAC Protection from output to earth 25...

Page 15: ...NG MANUAL 15 Appendix A Connector Pinouts DMX connector pin outs PIN No CONNECTION DMX IN CONNECTION DMX OUTPUT 1 RC NETWORK TO CHASSIS CHASSIS 2 IN OUT 3 IN OUT 4 NC NC OUTPUT DMX CONNECTOR INPUT DMX...

Page 16: ...JANDS DD 8 DMX SPLITTER Revision 2 0 5 July 1998 OPERATING MANUAL 16 40 KENT RD MASCOT NSW 2020 PH 61 2 9582 0909 FAX 61 2 9582 0999 email jandsinfo jands com au...

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