Cambium Networks PMP/PTP 450i Series, Руководство пользователя

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Chapter 2: System hardware Cabling and lightning protection
Page 2-31
Power supply
PoE powered device on
AUX/SYNC port (see Note
below)
From power supply From ODU to PoE
to ODU device on AUX/SYNC
port (see Note below)
AC Power Injector (60W) None 100 m N/A
IEEE 802.3at Type 2 100 m in total
AC+DC enhanced Power
Injector (90W)
None 100 m N/A
IEEE 802.3at Type 2 100 m in total
-48 V DC power injector
None 100 m N/A
IEEE 802.3at Type 2 100 m in total
CMM4 with 56 V supply
None 100 m N/A
IEEE 802.3at Type 2 Not supported
IEEE802.3at compliant supply
None 100 m N/A
IEEE 802.3at Type 2 Not supported
this firmware release.
The Ethernet connectivity for CMM4 requires the part “Ethernet cable adapter for CMM4 –
N000045L001A”.
Outdoor copper Cat5e Ethernet cable
Outdoor Cat5e cable is used for all connections that terminate outside the building. For example, connections
between the ODU, surge suppressors (if installed), UGPS receivers (if installed) and the power supply injector. This
is known as a “drop cable” (
Figure 15 ).
The following practices are essential to the reliability and longevity of cabled connections:
•
Use only shielded cables and connectors to resist interference and corrosion.
•
For vertical runs, provide cable support and strain relief.
•
Include a 2 ft (0.6 m) service loop on each end of the cable to allow for thermal expansion and contraction
and to facilitate terminating the cable again when needed.
•
Include a drip loop to shed water so that most of the water does not reach the connector at the device.
•
Properly crimp all connectors.