Odu Coupler Mounting Kit; Figure 1-10 Remote Mount Kit Showing The Odu Interface - Motorola PTP 800 User Manual

Antenna and antenna accessories

Figure 1-10 Remote mount kit showing the ODU interface

ODU coupler mounting kit

Motorola supplies coupler mounting kits for 7 GHz, 11 GHz, 18 GHz, 23 GHz, 26
GHz and 38 GHz bands in 3 dB and 6 dB variants
The 3 dB coupler mounting kit allows two ODUs to share the same antenna, the
main purpose being to support two parallel and simultaneously transmitting links,
each operating on a different frequency pair. Each coupler increases the system
loss by 3 dB to each ODU.
The 6dB coupler mounting kit allows two ODUs to share the same antenna. The
main purpose of this coupler is to support a redundant 1+1 system. Each coupler
introduces only 1 dB of additional loss to the main ODU but 7 dB of additional loss
to the standby ODU. This arrangement allows the the primary link to operate with
optimum link budget with the redundant link operating with reduced margin.
Automatic switching in the standby configuration will be supported in a future
system release.
The coupler mounting kit allows two ODUs to mount directly. This is shown in
Figure 1-12. The coupler mounting kit provides an interface that is mechanically
identical to that of a single ODU. It can therefore be mounted either to an RMK or
directly to a Motorola direct mount interface antenna.
1-18
Chapter 1 Product description
(Figure 1-11).
phn-1478_005v000
Apr 2010