User manual

Setup and Installation

4 Setup and Installation

Data Mode Configuration

The Kramer Cobra T2 Video / RS-232 Transmitters are configured in full

modem bidirectional serial modes. If you are using the daisy chain receivers

or a CAT 5 matrix switch or CAT 5 distribution amp, this mode must be

changed to uni-directional broadcast. To do this, configure the internal Serial

Daughterboard (SDB) to change the transmitters and receivers serial mode

operation (see Appendix E). This configuration should be done before making

any cable connections and applying power.

Alternatively, remove the internal daughterboard and use the transmitters

built in simplex serial option with the appropriate jumper changes.

With regard to connecting the cables:

 We recommend mounting and connecting all cabling to the Cobra T2

Video / RS-232 Transmitter components before applying power.

 Be sure that the CAT 5 cable you intend to use has been tested to comply

with the T568B wiring specification (see Appendix A).

4.1 Making the Connections

This section contains figures showing connections with the specific Cobra

Series models. In general, however, the connection and setup procedure at

both transmitter and receiver ends is as follows:

NOTE: all units must be the same type for all supported features to function

correctly. For example, a Cobra T2 must be connected to a Cobra R500-2 for

the serial signals to function. You cannot use the serial option with a Cobra T2

and a Cobra R500-2 that is configured for simplex serial. Similarly, a Cobra

T2 cannot be used with a Cobra R500A. Video modes may function normally,

but 4th pair options will not.

At the transmitter end:

1. Connect the source video to the Cobra T2 Series transmitter video input

port, which is an HD15 connector labeled VIDEO IN.

2. If desired, attach a local monitor via the local monitor port to LOOP OUT.

3. Make your audio or serial connections via the AUDIO/AUX I/O

connector or DB9 connector as appropriate.

4. Connect the CAT 5 cable to the transmitter.

5. Apply power on the transmitter. The LED should light and, if there is a local

monitor attached, a video image should appear on the monitor’s screen.