User manual

© MOBOTIX AG • Security Vision Systems • Made in Germany
www.mobotix.com • [e-mail]
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Performance Data
1.4 Overview: Performance Data
The data rates shown in the tables are net data rates, also referred to as the payload,
which are given in Mbps. In contrast to the gross data rates (including the data load for
the operation of the system) that are usually provided when the performance data of DSL
connections is specified, for instance, the amount of data shown here is the actual amount
of data that is fully available to the end device operated on the Mx2wire+ receiver unit.
As an example, a MOBOTIX network camera only requires a data rate of approximately
2.5Mbps.
Notes
When long cables are used, voltage drops may make it impossible to supply end devices
with power, so a separate power supply must be provided. In other words, the data range
is generally greater than the maximum power transmission line. A separate voltage
source (48–57VDC, 600mA) can be connected to both Mx2wire+ units. The maximum
PoE power consumption for the end device is 13 watts (corresponding to PoE class 3).
Only a network patch cable with a maximum length of typically ten meters should be
connected directly to an Mx2wire+ unit in order to bridge the path to the next device
(switch, router, PC, PoE injector or IP camera, for example).
No provision is made by MOBOTIX for any further extension of the network, for example,
by connecting a longer network cable to Mx2wire+.
It is not possible to link more than two Mx2wire+ units.
Overview: PoE Power Level Classes (IEEE 802.3af And 802.3at Standards)
Class
Max. power
consumption
0 0.44W–12.95W
for Mx2wire+
1 0.44W–3.84W
2 3.84W–6.49W
for end device (max.) with power supply via PoE
3 6.49W–12.95W
for end device (max.) with power supply via PoE or power supply unit
(48–57VDC)
4 12.95W–25.5W
Class 4: IEEE 802.3at (PoE+)
This brief overview contains sample power output data that was obtained by MOBOTIX
under real conditions and using standard benchmark test procedures. Refer to the following
pages for more detailed information on power output. You will find tables with the net
data rates and power output values depending on the type and length of the two-wire
cable and the type of power supply (PoE class 3, class 4 or via the MOBOTIX NPA-PoE set,
a particularly powerful class 3 PoE injector).
By correctly combining
or twisting additionally
available wires to
form two wires or
cables, the maximum
transmission line for
data and power can be
considerably increased
Mx2wire+ supplies end
devices with up to 13 W
of power (up to class 3)