ACR&Artex Float-Free 406 Memory Capsule - Manual (Page 6)

2 Y1-03-0202 Rev. E
3. Power-Over-Ethernet
PoE technology brings power, as well as data transfer, to the RLB-35MC via
a standard twisted-pair Ethernet cable. In effect, PoE provides a new
standards-based way for a computer to provide power to a wide variety of
remote equipment in areas where it is physically or financially prohibitive to
offer normal power. The cost savings and reliability improvements involved
in not having to install and maintain power wiring in addition to Ethernet
cabling is especially a key factor onboard ships during an S-VDR installation.
The industry has standardized on the use of 48 VDC as the Injected PoE
voltage. The use of this higher voltage reduces the current flowing through
the CAT5 cable and therefore increases the load capability and increases the
CAT5 cable length limitations.
RLB-35MC Capsule POE Power Injector
S-VDR Computer
+24 VDC
Power Supply
S-VDR System
Ethernet Data
Ethernet Data + Power
For evaluation and development, the RLB-35MC kit contains a power supply
which operates from AC power mains 100 – 250 VAC 50/60 cycle. Also
supplied are two CAT-5 cables for connecting between the power supply and
the RLB-35MC proto assembly. The other RJ-45 cable will connect to the
computer running the evaluation software.