User's Guide Part 1

Chapter 2: System hardware Ethernet cabling
Ethernet cabling
Ethernet standards and cable lengths
All configurations require a copper Ethernet connection from the ODU (PSU port) to the PSU.
Advanced configurations may also require one or both of the following:
• A copper Ethernet connection from the ODU (Aux port) to an auxiliary device.
• An optical or copper Ethernet connection from the ODU (SFP port) to network terminating
equipment or a linked ODU.
Table 20 specifies, for each type of PSU and power supply, the maximum permitted PSU drop
cable length.
Table 21 specifies, for Aux and copper SFP interfaces, the Ethernet standards supported and
the maximum permitted drop cable lengths.
Note
For optical SFP interfaces, refer to SFP module kits on page 2-39 for details of the
Ethernet standards supported and maximum permitted cable lengths.
Table 20
PSU drop cable length restrictions
Type of PSU
installed
Power supply
to PSU
Ethernet
supported (*1)
Power output to
auxiliary device
Maximum cable
length (*2)
AC+DC
Enhanced
power injector
AC mains No (*3) No 300 m (990 ft)
48 V dc No (*3) No 300 m (990 ft)
AC mains 100BASE-TX
1000BASE-T
Yes 100 m (330 ft)
48 V dc 100BASE-TX
1000BASE-T
Yes 100 m (330 ft)
(*1) 10BASE-T is not supported by PTP 700.
(*2) Maximum length of Ethernet cable from ODU to network terminating equipment via PSU.
(*3) Ethernet is provided via optical SFP interface.
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