Videoswitch VK-1 - Manual (Page 5)

VK-1 Remote Keyboard User Manual 23/09/2004 11:09
Videoswitch Page 4 Vk602b.doc
1.2 Remote Control and Display of Spot Monitor Only
Remote control of a VDM and display of the Spot monitor may be achieved by connecting up a VK-1
Keyboard and composite video monitor as shown below:
75 Ohms
IN
ON
MONITOR
DIGITAL RECORDER
VK-1 KEYBOARD
CAT5
CABLE
BALUN
T25A
TERMINAL PCB
TWISTED
PAIR
Connect to
“VID+” and “VID-”
BNC
CABLE
12V DC
POWER SUPPLY
In this configuration, with video being transmitter via twisted pair, you will need an adapter PCB (order code:
T25A) and a video balun (order code: VX-2)
The above configuration is satisfactory for cable runs up to 200 metres. Above this distance, the video
quality will degrade and it is recommended that a coax video cable be run directly to the monitor. In this
case, only one twisted pair core is actually used (for the data), and cable runs up to 1000m are possible.
To make sure the VK-1 keyboard only controls the spot monitor, set the configuration switch on the
underside of the unit ON, as shown in this diagram:
CONTROL
SPOT
MONITOR
ONLY
CONFIGURATION
SWITCH
TEST CONNECTOR
DO NOT USE!
FULL
CONTROL
(DEFAULT)