Vista QP16 series Uživatelský manuál stáhnout pdf (Strana 2)

16 Channel DVRs

www.benchmarkmagazine.com

rewriter is also included. The specification also

mentions e-SATA support, but the connector is

blanked off with a label stating that it is for

future implementation.

The unit offers pentaplex operation, offering

simultaneous live viewing, recording, playback,

archiving and network connection.

Recorded video uses H.264 compression and

resolutions can be set as 704 x 576 (4CIF,

although the documentation refers to it as D1),

704 x 288 (2CIF) or 352 x 288 (CIF). Record rate

is 400ips at all resolutions. This is a benefit, as

many so-called real-time machines don’t offer

real-time at full resolution.

The Paragon has the look of a traditional DVR,

even down to the often over-looked jog/shuttle

dial. The fascia bristles with buttons. From left

to right, there are buttons for monitor display,

channel select, playback controls, general

operational controls and finally a jog/shuttle

dial with menu-specific buttons.

The first job is to install hard drives. The

Paragon is shipped without drives, but does

include a HDD fitting kit (SATA leads, HDD

brackets, etc.). This does allow a level of

flexibility for installers, but does require

engineers to know how to fit SATA drives. You

would expect instructions to be included in the

manual. Sadly, our unit was supplied without a

manual, or any documentation on CD. It also

didn’t have a power lead. However, we did

receive the HDD fitting kit, a mouse and remote

control.

The documentation can be downloaded from

the Everfocus web-site, but the only information

about fitting the drives is a simple diagram that

shows which screw holes to fix them to! It’s not

a difficult job, but those who are new to this

task won’t be happy, nor should they be.

The menu structure for the unit is pretty

straightforward, but is cumbersome to navigate

if you don’t use the mouse. Initially it does look

as though every camera needs to be individually

configured, but thankfully you can set up one

input, then apply the setting to other inputs, or

even globally.

Configuring other features such as motion

detection, alarm handling and general

communications are simple, and the menus are

quite efficient with the proviso that the mouse is

used as an interface tool.

The video settings allow a choice of 4CIF, 2CIF

and CIF. There are also five quality settings: Low,

Basic, Standard, High and Superior.

Image quality is very good at the highest

resolution using the Superior setting. Colours

are faithful and detail is high, although bland

areas do show very slight signs of compression.

Dropping the quality to Standard doesn’t see

much increase in artefacts, although edges of

area with bright colours against pale

backgrounds do develop a slight shimmer. That

said, you have to be looking for it to spot it.

Even at the low setting, images are more than

good enough for identification.

Dropping the resolution to CIF at the Superior

levels gives the image a quality typical of the

best that budget MPEG-4 machines offer. As the

quality level is lowered, so compression

becomes obvious, and the last few settings are

not good for anything other than general

surveillance.

Honeywell HRDP16D

Honeywell’s HRDP16D supports up to 16 video

inputs with loop-throughs via BNC, with a main

monitor and one spot monitor output via BNC.

The unit also has a VGA output. Interestingly,

the specification quotes three spot outputs, but

there is only one!

The unit offers quadplex operation, delivering

simultaneous recording, playback, archiving and

network connection. The DVR supports two-way

audio with 4 inputs and 1 output. There are also

16 alarm inputs and 4 alarm outputs. These are

connected via simple push-fit connectors, as is

RS-485 connectivity. Other connections include

RS232, LAN (10/100) and 2 USB ports (one on

the front panel, the other on the rear). A DVD

rewriter is also included.

The HRDP uses H.264 for recorded video.

Recorded resolution options are 704 x 576

(4CIF), 704 x 288 (2CIF) or 352 x 288 (CIF).

Record rate is quoted as 200ips, but this is only

for CIF resolution. The menu shows total frame

rate on the set-up screen, and this is 200ips no

matter what resolution is set. It then multiplies

the frame totals. For example, if you set one

camera to 25fps in 4CIF mode, the frame rate

shows as 100fps used!

One of the issues with considering machines

with a higher frame rate is how the figures are

Honeywell HRDP16D

50fps at 4CIF doesn’t offer more than most DVRs

Clean and simple GUI

Everfocus Paragon 264x4

Genuine real-time recording at all resolutions

Lack of instructions for HDD installation

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