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KRAMER:  SIMPLE CREATIVE TECHNOLOGY

 

Setup and Installation 

 

4.4  Configuration Settings 

The 

Cobra R500A

 

and the 

Cobra R500-2

 are configurable for various video, 

audio and serial modes. Note that a compatible transmitter unit must be used 

at the source end. Reference the appropriate transmitter user guide or call for 

technical assistance. It is not possible to change an audio unit to a serial unit 

and vice versa. A dipswitch on the receiver unit is used to set the video, 

audio, serial configuration mode. Table 3-1 below shows the configuration 

settings (ON = down, OFF = up): 

NOTE: There are no user serviceable parts inside the Cobra R500A / Cobra 

R500-2. All adjustments are performed externally. 

Table 1: Cobra R500A / Cobra R500-2 Configuration Settings 

SW  Configuration Settings 

 

SW position 

Signal 

Setting 

 

 

 

L/R Audio 

On (100   term.) 

ON 

ON 

 

R500A models 

On (no term.) 

OFF 

ON 

 

 

Off 

OFF  OFF 

 

Serial  

Duplex 

OFF  OFF 

 

R500-2 models 

Simplex 

ON 

OFF 

 

Video 

RGBHV 

 

 

ON 

All Models 

Composite 

 

 

OFF 

 

S-Video 

 

 

OFF 

 

Component 

 

 

OFF 

4.5  Video Adjustment 

The only adjustments required on the 

Cobra R500A

 

and

 

Cobra R500-2

 are the 

SW positions 4 and 5 which must be set to compensate for cable length. 

Using the table below as a guide, turn SW positions ON or OFF for best 

picture clarity (ON = down, OFF = up): 

Table 2: Cable Length  EQ Settings 

Cable distance EQ settings 

Cable Length 

(0-125 Ft) 

OFF 

OFF 

(125-250 Ft) 

ON 

OFF 

(250-375 Ft) 

OFF 

ON 

(375-500 Ft) 

ON 

ON 

Summary of Contents for Cobra R500-2

Page 1: ...Kramer Electronics Ltd USER MANUAL Models Cobra R500A Video Audio receiver Cobra R500 2 Video RS 232 receiver...

Page 2: ...hnical Specifications 10 Figures Figure 1 Transmitter Connections 4 Figure 2 Cobra R500A Video Audio receiver Connections 4 Figure 3 Transmitter Connections 5 Figure 4 Cobra R500 2 Video RS 232 receiv...

Page 3: ...2 Video RS 232 receiver an external power supply and this user manual2 The Kramer Cobra series products are not compatible with Kramer non Cobra series products 2 Getting Started We recommend that you...

Page 4: ...due to the manufacture method can exhibit much greater skew than standard CAT 5 5e and may require skew compensation beyond what the standard product offers Contact Kramer Electronics for assistance...

Page 5: ...nections via the 1 8 3 5mm audio connector or DB9 serial connector transmitter model dependent 4 Connect the CAT 5 cable to the transmitter 5 Apply power on the transmitter The LED should light and if...

Page 6: ...t video and audio signals over CAT 5 cable The audio signal is line level audio and powered speakers are required Figure 1 shows the Kramer Cobra transmitter with Audio Transmitter connections and Fig...

Page 7: ...ND serial Figure 3 shows the Kramer Cobra transmitter with serial Transmitter connections and Figure 4 shows the Cobra R500 2 Video RS 232 receiver See Appendix A for cable pinouts of the Cobra R500 2...

Page 8: ...parts inside the Cobra R500A Cobra R500 2 All adjustments are performed externally Table 1 Cobra R500A Cobra R500 2 Configuration Settings SW Configuration Settings SW position 1 2 3 Signal Setting L...

Page 9: ...wer is ON Check input source levels from the source device Make sure the audio source is not overdriven or underdriven Audio is summed left and right for A versions If using a single channel both audi...

Page 10: ...Table 3 HD15 Video Connector PINOUT Pin RGBHV VGA RGBS RGsB Composite SVHS Y C YUV 1 Red Red Red C V 2 Green Green Green C Y Y 3 Blue Blue Blue U 4 5 Gnd Gnd Gnd 6 Red Red Red C V 7 Green Green Green...

Page 11: ...5 mm Audio Serial Connection model dependent Pin Signal Tip Serial Tx DB9 pin3 Left Audio Ring Serial Rx DB9 pin2 Right Audio Sleeve Serial GND DB9 pin5 GND Note The stereo audio input at the transmit...

Page 12: ...hms maximum REQUIRED DESTINATION IMPEDANCE Video IN 75 ohms Audio IN if any 600 ohms minimum AUDIO CHARACTERISTICS Channels Right Left summed Line Level 600 Ohm Unbalanced SERIAL CHARACTERISTICS Proto...

Page 13: ...11...

Page 14: ...or the latest information on our products and a list of Kramer distributors visit our Web site www kramerelectronics com where updates to this user manual may be found We welcome your questions commen...

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