UNV DC4304, Quick Manual

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are recommended to use an HDMI signal amplifier or HDMI
extension cord.
DVI cables
A DVI connector can transmit multiple types of video signals, and
different cables are used for different signals. If the DVI connector is not
connected to an adapter, the requirements for DVI cables are similar
with those for HDMI cables.
Audio cables
Use 4-wire shielded cables (RVVP) or unshielded digital communication
cables (UTP). The sectional area of the cable conductor should be large,
for example, 0.5 mm
2
. You are recommended to use dedicated shielded
audio cables, and the cable length is 100 meters (328.08 ft). Commonly
used audio cables include RCA audio cables and ordinary coaxial cables.
Alarm cables
Twisted pair cables are recommended. The wire gage of the insulated
core conductor should be in the range of 22 AWG to 28 AWG (24 and 26
AWG are recommended). The maximum DC impedance must not be
more than 100 ohm.
The following table shows the maximum length of alarm cables for wire
gages, taking 100 ohm as the benchmark.
Table 2-1 Maximum alarm cable length for different wire gages
Wire gage (AWG) Maximum cable length
22 1453 m (4767.06 ft)
24 914 m (2998.69 ft)
26 570 m (1870.08 ft)
28 360 (1181.10 ft)