Motorola PTP 400 Series Manual De Usuario

Default

Max Available TX Power (dBm) (license key dependant)

5732 MHz

5734 MHz

5736 MHz

Lower Centre

Frequency

Band Edge

5850 MHz

Band Edge

5725 MHz

Figure 15 - 5.8 GHz Band Edge TX Power Reduction (Region Code 1 Only)

5.7 Distance

The PTP 400 Series Bridge will operate at ranges from 100 m (330 feet) to 200 km (124

miles), within four modes 0-5km, 0-40km, 0-100km and 0-200km. 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 feet) 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

5.8 Networking

Information

The PTP 400 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

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

requirements. The standard ODU for the PTP 400 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 surge arrestor to protect connected equipment from nearby strikes.

The PTP 400 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”.