Constellation®
January 2006
4-16 Technical
Specifications
Manual Switch-over
A control capability is provided to switch the main and standby Transmitters or
Receivers to lock-on main or lock-on standby. Manual locking of a protected
Transmitter or Receiver is reported as a minor alarm. Manual Receiver
switching has no effect on traffic.
1+1 Switching Times
The average recovery time for switching caused by hardware failures in a
protected system is 60 ms or less, except for 16T high gain at 130 ms or less, and
28 T high gain at 100 ms or less.
For temporary signal interruptions of 1 to 2 seconds duration, no more than 5%
of recovery times will exceed 0.5 second.
Supervisory Interfaces
Network Management Interface
* Inverted mark/space polarity.
Table 4-7: Network management interface
Port
Signal
Application
FSCAN
RS-232 async
FarScan computer connection
Monitor
RS-232 async
SCAN interconnection
VersaT1lity
RS-232 async or RS-423*
async
SCAN interconnection
Keypad
RS232 async
Hand-held Keypad connection
Aux
RS-422 sync
Constellation Radio interconnection
Spur
RS-422 sync
Constellation Radio interconnection
Ethernet
10Base-T
SNMP
Summary of Contents for Constellation
Page 1: ...Microwave Digital Radios Constellation Systems Application P N SAI 112874 E09...
Page 2: ......
Page 3: ...CONSTELLATION MICROWAVE RADIO SYSTEM APPLICATION MANUAL PART NO SAI 112874 E09 JANUARY 2006...
Page 4: ...Constellation January 2006...
Page 18: ...Constellation January 2006 xii Preface...
Page 20: ...Constellation January 2006 xiv Preface...
Page 24: ...Constellation January 2006 1 4 General Information...
Page 92: ...Constellation January 2006 6 10 Antenna Coupling Unit ACU...
Page 110: ...Constellation January 2006 7 18 Performance Curves...
Page 124: ...Constellation January 2006 Index 6...
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