SPECIAL APPLICATION

MANUAL PART NUMBER: 400-0199-003

CAT-5 TO VGA + AUDIO

RECEIVER

USER’S GUIDE

DA1931CT

SPECIAL APPLICATION

400-0199-003 1

TABLE OF CONTENTS

Page

PRECAUTIONS / SAFETY WARNINGS ..............2GENERAL..........................................................2INSTALLATION .................................................2CLEANING.........................................................2FCC / CE NOTICE..............................................2

ABOUT YOUR DA1931CT ...................................3

TECHNICAL SPECIFICATIONS...........................3

PRODUCT DESCRIPTION ..................................4

APPLICATION DIAGRAM ....................................5DIAGRAM 1: TYPICAL CONFIGURATION ........5DIAGRAM 2: RJ-45 PINOUT ..............................6DIAGRAM 3: INTERNAL VIEW .........................7DIAGRAM 4: DIP SWITCH SETTINGS..............8

INSTALLING YOUR DA1931CT...........................9

OPERATION ........................................................9VIDEO EQUALIZATION.....................................9

TROUBLESHOOTING GUIDE ...........................10LED IS NOT RED .............................................10LED IS NOT GREEN........................................10NO SOUND......................................................10NO REMOTE IMAGE .......................................10RECEIVING DISPLAY QUALITY IS POOR ......11

ALTINEX POLICY ..............................................11LIMITED WARRANTY/RETURN POLICY ........11CONTACT INFORMATION..............................11

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PRECAUTIONS / SAFETY WARNINGS 1Please read this manual carefully before using your DA1931CT. Keep this manual handy for future reference. These safety instructions are to ensure the long life of your DA1931CT and to prevent fire and shock hazard. Please read them carefully and heed all warnings.

1.1 GENERAL

• Qualified ALTINEX service personnel, or their authorized representatives must perform all service.

1.2 INSTALLATION

• To prevent fire or shock, do not expose this unit to rain or moisture. Do not place the DA1931CT in direct sunlight, near heaters or heat radiating appliances, or near any liquid. Exposure to direct sunlight, smoke, or steam can harm internal components.

• Handle the DA1931CT carefully. Dropping or jarring can damage the unit.

• Do not pull the cables that are attached to the DA1931CT.

1.3 CLEANING

• Clean only with a dry cloth. Never use strong detergents or solvents, such as alcohol or thinner. Do not use a wet cloth or water to clean the unit. Do not open the unit to clean.

1.4 FCC / CE NOTICE

• This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

• This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

• Any changes or modifications to the unit not expressly approved by ALTINEX, Inc. could void the user’s authority to operate the equipment.

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ABOUT YOUR DA1931CT 2

DA1931CTCAT-5 TO VGA + AUDIO RECEIVERThe DA1931CT provides a means of receiving computer video and audio signals over twisted pair (CAT-5) type cable when used together with an ALTINEX Twisted Pair Video Transmitter, such as the DA1930CT.

The DA1931CT is compact and easy to use. The DA1931CT is able to receive one of the video sources, such as VGA, Component Video, S-Video or C-Video along with Stereo Audio transmitted over the CAT-5/6 cable from the DA1930CT or equivalent Transmitter.

The DA1931CT provides both Audio and Video outputs. The DA1931CT offers a female 15-pin HD output for RGBHV/YPbPr signals, a 4 pin Mini-Din connector for S-Video and an RCA connector for Composite Video Output. A 5 pin terminal block is available for balanced stereo output and a 3.5mm jack is used for unbalanced stereo output.

The unit also offers hardware Video Equalization for transmission lengths up to 400 feet. The Video Equalization work in conjunction with the Video Equalization on the transmitter. There is also a Signal Detect feature which shows when an input signal is present.

TECHNICAL SPECIFICATIONS 3FEATURES/DESCRIPTION DA1931CT

GENERALInputs Video/AudioAltinex CAT-5/6 Twisted Pair Standard RJ-45

OutputsRGBHV/YPbPr 15 Pin HDS-Video 4 Pin Mini DINComposite Video RCA femaleStereo Audio – unbal. 3.5mm femaleStereo Audio – balanced 5 Pin Terminal Block

Compatibility VGA through UXGA, Stereo Audio, C-Video, S-Video

Table 1. DA1931CT General

MECHANICAL DA1931CTMaterial 0.1” AlFinish ALTINEX GreyTop Panel Lexan OverlayHeight (inches) 5.28in (134mm)Width (inches) 4.29in (109mm)Depth (inches) 0.98in (25mm)Weight (pounds) 1.0lb (0.45kg)Ship Weight (pounds) 1.6lbs (0.73kg)T° Operating 10°C-40°CT° Maximum 50°CHumidity 90% non-condensingMTBF (calculations) 40,000 hrs

Table 2. DA1931CT Mechanical

ELECTRICAL DA1931CTInputCAT-5/6 Twisted Pair Input

Video/Sync/Audio Signals Altinex Standard

Output Video SignalsRGBHV/YPbPr - Video 75 OhmsRGBHV - Sync 10 kOhms/TTLS-Video 75 OhmsComposite Video 75 OhmsOutput Audio SignalsGain at 1 KHz- Balanced +6dB +/- 10%Gain at 1 KHz- Unbal. 0dB +/- 0.5dBAmplitude Matching(difference Left to Right) 10% maximum

Frequency Response 20Hz-18KHz (+/-0.5dB)PowerExternal Adapter (included) 9V DC, 1ATable 3. DA1931CT Electrical

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PRODUCT DESCRIPTION 4

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APPLICATION DIAGRAM 5DIAGRAM 1: TYPICAL CONFIGURATION

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DIAGRAM 2: RJ-45 PINOUT

1 8

FRONT

1 8

TOP

Pin Number RJ-45 Output Signals

1 Orange/White

2 Orange

3 Green/White

4 Blue

5 Blue/White

6 Green

7 Brown/White

8 Brown

Table 1Standard 568B Wiring Color Code

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DIAGRAM 3: INTERNAL VIEW

VGA + AUDIO TO CAT-5 RECEIVER

OUTPUTRCAC-VIDEO

POWER SUPPLY

OUTPUT5P TBBALANCEDSTEREO AUDIO

OUTPUT15PIN VGARGBHV/Y Pb Pr

HOR

R1+R1-

L1+

RIGHT

L1-

LEFT

SYNCPROCESSING

AUDIOSEPARATOR

LP

LP LP

LP

--++

OUTPUT3.5mmUNBALANCEDSTEREO AUDIO

LUMA

BLUE

RED

GREEN

CHROMASIGNALDETECT

SYNC ON GREEN

OUTPUT4PIN MINI DINS-VIDEO

LOOP2PORTRJ 45CAT5

PAIR 4

PAIR 2

PAIR 3

PAIR 2LOOP1PORTRJ 45CAT5

PAIR 1

PAIR 4

PAIR 3

INPUTPORTRJ 45CAT5

PAIR 4

PAIR 1

PAIR 2

PAIR 3

PAIR 1

POWER2.5mm9V, 1A

POWER

VER

EQH/W

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DIAGRAM 4: DIP SWITCH SETTINGS

R74

C80

C9

R93R105

P3

C96

C85

R92 C83

C81

R90

C84 R104

R91

U4 C12

R87

R86

C82

R89

U3

C94

C25

C49

U21

R32R107

C21

C22

C92

R29

R30

C11

C45

R103

R51C93

C46

C47C99

R96

R102

R106

R101

U6C17

C37

U5

R99C107

R100 R97

C106C15

C67

U2 U23

C112R84C33

R88

R85 C14 C71

C69C10

C114R67

R110

R109

R108

C38C30R95

C13

C79

C95C98 R98

C42

R52C70

C113U22C40

C74C39TP2

C102

C43

C97C16R94

R83

R82

C18

TP1U26 R27

U10

R63

R46

C41

C27

DA1931

C24

R54

C91

P4

U20

U27

C19

C20

CUT

x2 x1

U17

C90

C86C109C77

C111

C48

C59

R48R71

VIDEO GAIN

SW3

C55

R58

R31

C58 R60

R64 R12C117C28

C56

R49U11

C57C62 R61

R35

J1 C1

C78

C87

C108ON V-

ON V+

ON H-

ON H+

x2 SOG

R56R59

C63

R53R72

R73

R11

R9P2 R10

C119C75

R43R55

R65

C66C60

U12

R62C61

C29R14

C4

R19

R44R66

C64

R57U13

C65

C72 Q4

U8

C76 C44R16

P6

R50

R28

R45

SW1

x1

C31

U16 C36R68R69

R36

C23

C34

C53

C35 C51

C54C89

C50

U14

C103R118

C105

U18

R22

R23

C7C73

P5C8

D2

C115-6V U19

C110D1

R8R7

R39

R40

P8

C118

R117

C116

U7R37P9

L1

R13R21R1R2

C2R24

R42

CUTRED

R26 CUTCUT

R3

R25C3

R38R47

P11R15

R4

P10

GREENC5 C6

U9R33R41

P13 P12P1

CUTBLUE

R17

R6R5

C26C120

R34

R114

U25

C101

D5C1

00

R113

R80C68P7 U1

C52R81C32

U15

R116

C104

R115 RECEIVER

285-0382-001LED1R1

12

OGI

AUDIO

AUDIO

RGBHV/

S-VIDEO

C-VIDEO

VIDEO EQ

POWER

INPUT

YPbPr

LOOP1

LOOP2

C35

C64R9

R10R59R56

SOG

R50

x2

R45

SW1

x1

ON H

+ON

H-

ON V

+ON

V-

U161 2 3 4 5 6

ON

OFF

SW1

The DA1931 has an internal Dip-Switch with 6 positions to achieve following features:

Position Description1 Video Gain (G=1/G=2)

Factory Default = G1.

2 Sync on Green (ON/OFF)Factory Default = OFF

3, 4 HSync Polarity (Positive/Negative)3 ON, 4 OFF = Positive (Factory Default)3 OFF, 4 ON = Negative

5, 6 VSync Polarity (Positive/Negative)5 OFF, 6 ON = Positive (Factory Default)5 ON, 6 OFF = Negative

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INSTALLING YOUR DA1931CT 6Step 1. Determine the settings required for Gain,

Sync On Green, Horizontal Sync Polarity and Vertical Sync Polarity. If necessary to change the factory defaults, open the unit and set the switches per DIAGRAM 4 on page 8.

Step 2. Plug the 9V power adapter into an AC outlet and then connect the other end to the POWER input jack on the DA1931CT.

Step 3. Verify the LED near the top of the unit is illuminated RED indicating power is applied.

Step 4. Connect the CAT-5/6 cable from the video output of the CAT-5 Transmitter to the CAT-5 Input port on the DA1931CT.

Step 5. Verify the power LED at the top of the unit changes to GREEN, indicating a SYNC signal has been detected.

Step 6. Connect the stereo audio output from the DA1931CT to the audio receiving device.

Step 7. Connect the receiving monitor to the applicable DA1931CT Video Output connector, either RGBHV/YPbPr, S-Video or C-Video depending on the input type to the transmitter.

Step 8. Verify the picture quality on the receiving monitor is equivalent to the quality as displayed on the local monitor at the transmitter. If the quality of the image is poor or non-existent, it may be necessary to adjust the Video Equalization on the DA1931CT and/or DA1930CT. See the OPERATION section that follows for details.

OPERATION 7The DA1931CT requires only one adjustment to be made for optimal performance. Video Equalization is required for long cable lengths and may be adjusted to fine tune the video display.

7.1 VIDEO EQUALIZATIONVideo Equalization is provided to fine tune the displayed image on the remote display. Typically, for short cable runs the equalization will be set to near minimum. Cable lengths up to 400 feet will require near maximum equalization.

The equalization adjustments on the DA1931CTReceiver and DA1930CT Transmitter work together to provide equalization for maximum cable lengths. For example, for cable runs less than 50 feet, both equalization settings may be set to approximately minimum, since on the short distances no equalization is required. Where as cable runs of 400 feet will see equalization settings at about the three-quarter position.

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TROUBLESHOOTING GUIDE 8We have carefully tested and have found no problems in the supplied DA1931CT. However, we would like to offer suggestions for the following:

8.1 LED IS NOT REDThe LED should be ON and RED when power is applied and there is no video signal present. If the LED is ON and GREEN, the unit is receiving power and a SYNC signal.

Cause 1: No AC power.Solution: Verify the adapter is plugged into a

working AC outlet and that the outlet has power.

Cause 2: Adapter is not plugged into DA1931CT.

Solution: Verify the DC power plug coming from the AC adapter is plugged all the way into the DA1931CT.

Cause 3: The DA1931 has a problem.Solution: If there is AC power to the adapter

and the LED still does not turn on, the DA1931CT or the power adapter may require service. Call ALTINEX at (714) 990-2300.

8.2 LED IS NOT GREEN

Cause 1: There is no power.Solution: Disconnect the video input from the

DA1931CT and verify the LED is ON and RED indicating power is present. Reconnect the computer's video output. If the LED is still not GREEN see Cause 2.

Cause 2: There is no Sync signal.Solution: Verify the computer output is

operating correctly by connecting it directly to a monitor. If the display is good, call ALTINEX at (714) 990-2300.

8.3 NO SOUND

Cause 1: The source has a problem.Solution: Check the source and make sure

that there is a signal present and all source connections are correct. If the source is working and there is still no sound, see Cause 2.

Cause 2: The volume is too low.Solution: Increase the AUDIO GAIN toward

maximum. If there is still no sound present, see Cause 3.

Cause 3: Cable connections are incorrect.Solution: Make sure that cables are properly

connected. Also, make sure that the continuity and wiring are good. If there is still no sound, see Cause 4.

Cause 4: The receiving device has a problem.

Solution: Make sure the receiving device has power and is turned ON. If there is still no sound, please call Altinex at (714) 990-2300.

8.4 NO REMOTE IMAGE

Cause 1: The source has a problem.Solution: Check the image on the local

monitor and verify the quality is good. If the local image is good, see Cause 2.

Cause 2: Video equalization required.Solution: Adjust the VIDEO EQUALIZATION

on the DA1931CT. Long cable runs may require adjustment on both the DA1930CT and the DA1931CT.

In general, cable runs less then 50 feet require little or no video equalization and should be set to minimum. Cable runs up to 400 feet will require maximum equalization on both the transmitter and receiver.

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8.5 RECEIVING DISPLAY QUALITY IS POOR

Cause 1: The source has a problem.Solution: Check the image on the local

monitor and verify the quality is good. If the local image is good, see Cause 2.

Cause 2: Video equalization required.Solution: Adjust the VIDEO EQUALIZATION

on the DA1931CT. Long cable runs may require adjustment on both the DA1930CT and the DA1931CT. If the image is still not correct, call ALTINEX at (714) 990-2300.

ALTINEX POLICY 99.1 LIMITED WARRANTY/RETURN POLICY

Please see the Altinex website at www.altinex.com for details on warranty and return policy.

9.2 CONTACT INFORMATION

ALTINEX, INC592 Apollo street

Brea, CA 92821 USA

TEL: 714 990-2300

TOLL FREE: 1-800-ALTINEX

WEB: www.altinex.com

E-MAIL: solutions@altinex.com