OPTIONS AND FEATURES, continued
Features
(cont’d)
Auto
Fault
Recycle
Internal test points for ease of maintenance
MTTR < 1 hour
Also available in 400 Watt C-Band
and 400 W X-Band
Characteristics and performance limits are based on current data and are subject to change without
notice. Please contact CPI Satcom Division before using this information for system design.
ACCESSORIES
Several optional accessory items have been designed for use with CPI Ku-band CMPAs.
Brief descriptions of the items now available are given on the following paragraphs.
Protection Switching
The Switching System consists of an output waveguide switch, dummy load and local
control unit. These assemblies are usually mounted on the upper part of a rack/cabinet
intended to house the two CMPAs. The circuit provides 1:1 redundant protection with
automatic transfer, or manual operation (local or remote) as selected by the operator. For
servicing, the logic assembly can be removed from the front panel without disturbing the
RF connections. Options are available for the addition of an input power divider or a
ganged input transfer switch.
Phase Combining
The Phase Combiner consists of a coaxial input divider network and phase shifter and an
output waveguide combining system. The combiner is an electrically operated variable-
ratio hybrid, which provides the following operating modes:
1) PA1 and PA2 combined on line
2) PA1 on line, PA2 to dummy load
3) PA2 on line, PA1 to dummy load
4) PA1 and PA2 combined to dummy load
In the normal combining mode a fault in one PA will automatically index the combiner to
mode (2) or (3), providing the "soft fail" protection of full output from the surviving PA.
In the manual mode the operator may select by push-button any one of the four operating
modes.
The combiner assembly is packaged in a 19-inch rack-mountable enclosure measuring 7
inches high and 24 inches deep.
Ku-Band CMPA 04/08
TD-67 Page 13
Содержание VZU-6994
Страница 21: ...Ku Band CMPA 04 08 TD 67 Page 19 Figure 4 CMPA Front Panel Ku Band CMPA 04 08 TD 67 Page 19...
Страница 25: ......