Radyne ComStream SFC6400A, Installation And Operation Manual

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Operation SFC6400A/SFC1450A Synthesized Frequency Upconverter
3-2 TM106 – Rev. 1.1
3.1 Converter Configuration
There are three basic operating configurations of the SFC Upconverters: Stand-Alone, 1:1 Switch,
and 1:8 Switch.
The Upconverter automatically detects the equipment to which it is connected and adjusts its
operation accordingly. Some user Menus, most notably the Switch Menu, are only available if the
Upconverter is connected as the Backup in a Redundancy Switch System.
Note: The Switch Systems may be referred to as either a Redundancy Switch, a Protection
Switch, or simply a Switch. In addition, in all switch configurations, the Backup Unit acts as
the master (it controls all switch operations).
3.1.1 Stand-Alone Operation
If J5 on the Back Panel of the SFC Upconverter (B.U. SWITCH INTERFACE) is not connected to a
Switch, the unit will automatically configure itself for Stand-Alone Operation. The user can set up
all configurable parameters using one of the four different Interfaces described in Section 4.
3.1.2 1:1 Switch
In the case of a 1:1 Switch System, the Upconverter detects to which connector on the Switch it is
connected (INTERFACE BACKUP or INTERFACE PRIMARY).
Note: The Primary is also sometimes referred to as the Prime.
If the Converter is connected as the Backup, then all the Switch controls are available to the user on
that unit.
Figure 3-2 illustrates a typical interconnection of a SFC Upconverter with an RCU101 1:1 Protection
Switch.
3.1.3 1:8 Switch
In a 1:8 Switch, the Converter detects whether it is connected as PRIMARY1 through PRIMARY8,
or as the BACKUP. The RCU108 is flexible in that it can be set up with anywhere from 1 through 8
Primary SFC Upconverters. However, there is only one Backup. Thus, only one Prime can be
backed up at one time.
Figure 3-3 illustrates a typical interconnection of a SFC Upconverter with an RCU108 1:8 Protection
Switch. The configuration shown is a 1:2 Switch.
3.2 Optional Chain Switching Operation
For Chain Switching, each converter in a 1:N configuration (where N is less than or equal to 8) will
contain an optional Chain Switching Module. During set up, one of the converters will be considered
the backup. This is usually the converter at the bottom of the rack. Once the system is set up and
properly wired, each converter then has an ID Address and can be programmed from the Front
Panel to set the priority level of each converter in the rack. If no priority is set from the Front Panel
then the priority will default to level one with the converter closest to the back up having the highest
priority and priorities incrementally decreased the further from the back up.