User`s manual

100-M0056X2B 8 of 28

www.cobham.com/gms

NOTE: Based on customer application GMS may deliver additional cables and antennas. Contact GMS

for further information.

The MDT-B is pre-configured by GMS prior to shipment (based on customer requirements), thus is

ready to work “right out of the box”.

5.1 Initial Checkout

Prior to installing a MDT-B unit into the desired target environment, an initial checkout should be

performed to ensure proper operation of the unit. The initial checkout consists of configuring a

basic MDL-B link.

Figure 1 shows a basic configuration to establish a MDL-B wireless link (NOTE: MDR-B and D/C

units and their associated hardware are sold separately). The steps necessary to setup the

configuration shown in Figure 1 are shown below:

Figure 1 - Basic MDL Link Setup

1. Install omni-directional antennas onto the MDT-B RF output port and Down- Converter (D/C)

RF input port. Note: Transmitters should not be powered on without a load. Doing so

could cause the output PA to stop working.

2. Attach the MDT-B breakout cable (DB-44 end) to the MDT-B unit.

3. Attach a RF cable from the D/C IF output port to MDR-B IF IN #1 port.

4. Attach a composite video source to MDT-B BNC video input cable (marked CVBS/Y) that is

located on the MDT-B breakout cable. S-video and Component video input is also available.

5. Attach a video cable from one of the BNC video output ports on the MDR-B to a video

monitor.

6. To prepare to power the MDT-B unit, attach the red and black wires from the MDT-B breakout

cable to +12 V terminal and ground of power supply, respectively. NOTE: The power supply

used needs to be able to provide at least 1.2 Amp of current at a nominal +12 VDC input. To

prepare to power the MDR-B, attach +12 VDC to provided power pigtail.

7. Turn on the video source and video monitor equipment.

MDT

D/C

Video Source

Monitor

Power Supply

Power Source

MDR

MDT

MDR