Bosch VEZ-211-IWCS User Manual

572 | Encoders/Decoders | Small Single and Multi-Channel Systems

Features
▶ Ruggedized for extended environmental conditions
▶ High-quality MPEG‑4 video over IP
▶ H.264 Baseline Profile encoding
▶ Units with one, two, or four video inputs
▶ Built-in Intelligence-at-the-Edge
▶ Network-attached RAID storage via iSCSI
▶ ONVIF conformant

The Bosch VideoJet X encoders belong to a family of
industrial, high-performance, single-, dual-, or quad-input
CCTV video encoders. They are built into a rugged housing
and constructed to withstand extreme environmental
conditions. The VideoJet X encoders may be used at
extreme temperatures, operating from -30 °C to +60 °C
(-22 °F to +140 °F). These powerful and flexible devices
represent the cutting edge of high-performance Video-
over-IP for CCTV today.

Functions
Rugged Environments
VideoJet X encoders are ideal for outdoor applications
such as perimeter, border, and fence control, as well as
for industrial applications where they are tolerant of harsh
environments.
When used at remote locations you benefit from their
wide 10 to 30 VDC power input range, so that they can be
battery or solar powered. You also benefit from their SFP
(small form-factor pluggable) slot that allows a direct
connection to a fiber interface module without the need
for external fiber hardware.

Their industrial-grade vibration resistance makes these
encoders extremely suitable for use in mobile applications
such as trains, busses, or other vehicles.
Flexibility
VideoJet X encoders offer unparalleled recording
flexibility. Stream video across the network and store it
using Network Video Recorders (NVRs). Record locally on
CompactFlash, an external USB hard drive, or use an
optional automotive-grade internal hard drive. Network-
attached RAID iSCSI storage devices can also be used.
The built-in iSCSI support enables the VideoJet X
encoders to act as conventional DVRs while streaming
high-performance live video across the network.
Dual Streaming
The VideoJet X encoders use Dual Streaming to generate
two independent IP video streams per channel if sufficient
computational power is available. This allows viewing and
recording at two different quality levels to save disk space
and bandwidth. On alarm, they can send an e‑mail with
JPEG images attached.
Dual Recording
You can record the streams independently on different
media. Thus video can be recorded centrally on iSCSI
drives managed by VRM Video Recording Manager and
redundantly on the local media. If necessary, for example
in case of a network failure VRM can fill up the gap in the
central recording (ANR, Automatic Network
Replenishment).
Recording Profiles
The encoders feature a highly flexible recording scheduler,
providing up to ten programmable recording profiles and
allowing individually assigned camera profiles. With these
profiles, you can accelerate the frame rate as well as
increase the resolution on alarm, saving recording space
during non-alarm periods.
H.264 Baseline Profile Encoding
Firmware 4.0 enables the Bosch VideoJet X encoders to
use H.264 Baseline Profile to encode the video signal. This
allows reducing the required bit rate for a given quality
setting, or increasing the quality when keeping the bit rate
setting.
Frame Rates and Resolution
When one or two inputs are used, the encoders deliver
MPEG‑4 video over IP at a full frame rate of 25 (PAL) or
30 (NTSC) images per second with up to 4CIF resolution
on every channel. If four inputs are used the maximum
frame rate is 12.5/15 images per second at 4CIF
resolution and no Dual Streaming is possible.
Because H.264 Baseline Profile does not support field
encoding, interlaced video is not possible, thus resolution
is limited to a maximum of 2CIF. H.264 encoding requires
the double performance in respect to MPEG‑4. Frame rate
values must therefore be divided by two.
The maximum frame rates listed in the tables below
depend on the resolution, picture content and movement,
and the number of inputs used.