User Manual

General Considerations

Channel Center Frequency

(MHz)

Maximum Output Power (dBm)

Channel Bandwidth (MHz)

5735 25

5736 25

5737 25

5738 25

5739 - 5838 25

5740 25

5742 - 5832 25

5839 26

5840 26

Table 6 5.8 GHz Band Edge Tx Power Reduction

5.7 Distance

The PTP 500 Series Bridge will operate at ranges from 100 m (330 ft) to 200 km (124 miles), within

3 modes: 0-40km (0-25 miles), 0-100km (0-62 miles) and 0-200km (0-124 miles). Operation of the

system will depend on obstacles in the path between the units. Operation at 40 km (25 miles) or

above will require a near line-of-sight path. Operation at 100m (330 ft) could be achieved with one

unit totally obscured from the other unit, but with the penalty of transmitting at higher power

in a non-optimal direction, thereby increasing interference in the band. This subject is covered in

more detail in Section 6.1.3 “Path Loss Considerations”.

5.8 Networking Information

The PTP 500 Series Bridge operates as a transparent Ethernet bridge. Each unit requires an IP

address. This IP address is for management purposes only and it plays no part in the operation

of the system. IP addresses are assigned during initial conﬁguration as described in Section 7.2

“Installation Procedure”.

5.9 Lightning Protection and regulations

The amount of lightning protection is dependent on regulatory requirements and the end user

requirements. The standard ODU for the PTP 500 Series Bridge is ﬁtted with surge limiting

circuits and other features to minimize the risk of damage due to nearby lightning strikes. These

standard features may require some additional equipment to be conﬁgured as part of the system

installation to be fully eﬀective. Motorola recommends the use of screened cable and Lightning

Protection units to protect connected equipment from nearby strikes.

NOTE: The PTP 500 Series Bridge is not designed to survive direct lightning strikes. For this

reason the unit should not be installed as the highest point in a localized area, unless speciﬁc

precautions are taken. See Section 11 “Lightning Protection”.

5.10 Electrical Requirements

The PTP 500 Series Bridge requires one mains supply outlet at each end of the link to plug in the

PIDU Plus units (Section 3.3.2 “PIDU Plus – PTP 500 Series Bridge”).