Wegener Communications DVR395 사용자 설명서
Page 12
DVR395/DVR396-002
Page 12 of 30
installations, but especially in multi-service environments, should use high-quality shielded
cables, with the shield grounded according to good engineering standards.
cables, with the shield grounded according to good engineering standards.
1.4.1.2 Ferrite
Installation
For this installation, there are three ferrites that are larger than the others. These should be used
for the cables numbered
for the cables numbered
6
,
7
, and
8
in the list below. These are the relay cables, the video cable,
and the S-Video cable. The other five cables will normally have a smaller total diameter, and
should fit into the smaller ferrites.
should fit into the smaller ferrites.
These ferrites must be installed on cables attached to the following connectors:
Connector Ferrite Size
1. Audio 1 Left
Small
2. Audio 1 Right
Small
3. Audio 2 Left
Small
4. Audio 2 Right
Small
5. Serial Port
Small
6. Alarm and Closure Relays.
Large
One ferrite for all wires to relays.
7. Video Large
8. S-Video Large
8. S-Video Large
The cables must pass through the ferrite and then loop around and pass through again. See
Figure 1
(Page 11). For proper results, the core should be positioned on the cable as close to the
chassis connector as possible. With minimal slack in the loop, the wiring alone should properly
support the core. No additional support should be necessary.
support the core. No additional support should be necessary.