User manual

Appendix F: Redundant Backup F-7
Moseley SL9003Q 602-12016 Revision G
receiver fails, the line will go LOW, and input 2 will be selected (the Standby receiver will then
be active).
The Broadcast Tools switcher router is configured internally with DIP switches to operate from
external control. The lid must be removed from the router to switch the DIP Switch 5 – 6 to the
ON position for remote control.
The transfer control cable is available from Moseley for this configuration (203-12416-01),
although a cable can be made from a shielded RJ-45 (Black Box p/n EVNSL60-0006). This is a
6 foot cable that can be cut, and the ends tinned to provide the RX XFER OUT signal (RJ45 pin
6) for the indicated connection. Be sure to maintain the shield performance by connecting to
ground. The high RF levels in typical STL receiver environments can cause problems.
F.5.2 Starlink Digital Composite Backup
Figure F-4 shows a typical Starlink Digital Composite (STL) Main/Standby configuration for the
transmitter end of the link.
Transfer control is via shielded RJ45 cables and RJ45-to-DB9 converters (230-12134 & 230-
12127, both supplied) between NMS card “XFER” input and the respective DB9 inputs on the
TP64 transfer panel.
The composite program signal is split to both receiver composite inputs through a BNC tee.
The RS-232 data control aux channel can be split to both transmitters through a “modem
splitter”. The splitter may be a passive device, such as Black Box p/n TLO73A-R2 (3 port, MS-
3).