User's Manual

The DVS-350 can support up to 16 channel video inputs with 2 customization video cables.
The pin definition of video connector and video cable is following:
Table 2.1 Video Input Connector
Pin Definition Pin Definition
1 Channel 1 /9 9 Channel 5 /13
2 Ground 10 Ground
3 Channel 2 /10 11 Channel 6 /14
4 Ground 12 Ground
5 Channel 3 /11 13 Channel 7 /15
6 Ground 14 Ground
7 Channel 4 /12 15 Channel 8 /16
8 Ground N/A N/A
DVS-350 has a high integration main board with 4 Conexant Fusion 878A video chips. Each
878A chip can run with 30 frames per second at NTSC or 25 fps at PAL up to D1 resolution.
Also, each 878A chip can accept 4 channel video input to share the total 30/25 frames.
Following table is the video performance of 1 Conexant Fusion 878A chip with enabling share
frame function.
Table 2.2 Video performance with share frame function
Input channel 1 channel 2 channel 3 channel 4 channel
Share frame per second / NTSC 30 fps 15 fps 10 fps 7.5 fps
Share frame per second / PAL 25 fps 12.5 fps 8 fps 6 fps
Table 2.3 DVS-350 Video Channel Arrangement
Channel Number 878A Video Chip Number Video Input (Chip-Switch)
Channel 1 Chip 1 1-1
Channel 2 Chip 2 2-1
Channel 3 Chip 3 3-1
Channel 4 Chip 4 4-1
Channel 5 Chip 1 1-2
Channel 6 Chip 2 2-2
Channel 7 Chip 3 3-2
Channel 8 Chip 4 4-2
Channel 9 Chip 1 1-3
Channel 10 Chip 2 2-3
Channel 11 Chip 3 3-3
Channel 12 Chip 4 4-3
Channel 13 Chip 1 1-4
Channel 14 Chip 2 2-4
Channel 15 Chip 3 3-4
Channel 16 Chip 4 4-4
If user would like to run DVS-350 with 4 channel only, user should connect the 4 channel
inputs to channel 1 to channel 4. Then each channel can run at 30/25 frame per second.
If user would like to run DVS-350 with 8 channel application, user should connect the 8
channel inputs to channel 1 to channel 8 with 15/12.5 fps per channel.