TX1500 Manual V3.5 Dec 07 Page 10 of 40 TX1500 MATRIX
VIDEO INPUT CARD
The Video Input Card is used to connect 16 camera inputs to the TX1500. Systems larger
than 16 cameras will use multiple cards. A board mounted DIL switch is used to set the card’s
camera number range.
Each input has a corresponding looping output on the lower BNC connector. The camera
inputs are passively terminated at 75Ω and auto de-terminate when a BNC plug is connected
to the looping output. Up to 6 cards can be connected in a matrix to control up to 96 cameras.
Video Input card Front Panel View
The switches for each card will be set at the factory however if the system is to be upgraded
then please set the new card(s) switches as shown below.
Video Input card SW1 address switch setting
PL1 PL5PL2PL6PL3PL4
SW1
LD1
00101
BBV
J17
Top view of Tx1500 video input board PCB00101
Video bus Control bus
VIDEO INPUTS
12 3456 7891011
1
2
1
3
1
4
1
5
16
12 3456 78
ON
12 3456 78
ON
12345678
ON
12 3456 78
ON
12 3456 78
ON
12345678
ON
Camera 1 - 16 Camera 17 - 32 Camera 33 - 48
Camera 49 - 64 Camera 65 - 80 Camera 81 - 96
SW1 Camera Range