User manual

Appendix F: Redundant Backup F-1
Moseley SL9003Q 602-12016 Revision G
Appendix F: Redundant Backup with TP64
and TPT-2 Transfer Panels
F.1 Introduction
The Starlink SL9003Q and Digital Composite operate in a redundant hot or cold standby
configuration STL link using the TP64 Transfer Panel for transmitter switching. The Starlink
digital STL link may also be used in a redundant cold standby configuration with an existing
analog STL as a main or backup link when using a TPT-2 Transfer Panel.
F.2 TP64 System Features
• Redundant standby system accessory for Starlink 9000 QAM STL product lines.
• Manual transfer and Master/Slave selection by front panel push button.
• Front panel tri-color LED indicators display status of transmitter and receiver functions of
both Main and Standby radios.
• RF transfer relay provides high isolation, low insertion loss, and wide bandwidth, while
maintaining RF termination of the Standby radio transmitter.
F.3 TP64 System Specifications
Redundant Standby
System Frequency Range
0.5-2 GHz (limited by power divider)
TX Relay
Frequency Range
0 to 18 GHz
TX Relay Insertion Loss
0.2 dB max. (0-4 GHz)
TX Relay Isolation
80 dB min. (0-4 GHz)
TX Relay VSWR
1.2:1 max. (0-4 GHz)
TX Relay Switching Type
Make before Break, Transfer Switch (standby TX switched into
50 ohm power termination)
TX Relay Switching Time
15 mSec max
TX Relay Life
1 × 106 cycles
TX Relay & RX Power
Divider RF Connector Type
50 ohms type N (female)
RX Power Divider
Insertion Loss
3.2 dB typ. f= 1GHz
Control I/O Interface
Radio A & Radio B
DB-9 male (see Appendix)