Comtech EF Data MBT-5000 - Manual (Page 39)

MBT-5000 L-Band Up/Down Converter System MN-MBT5000
Rear Panel Connections Revision 4
3–7
3.2.2 Optional Redundancy Groups
See the “Function” column in Table 3-1 in this chapter, and Figure B-2 in Appendix
B. MBT-5000 REDUNDANCY OPERATION for interconnection between these
connectors to others located on the MBT-5000 rear panel and on other external
equipment.
3.2.2.1 Optional ‘RF’ Connectors (Type ‘SMA’ Female)
The ‘RF’ PRI (Primary) A / SEC (Secondary) B connector pairs are Type 'SMA'
female connectors that provide the RF “baseball” switch for optional
redundant operations.
3.2.2.2 Optional ‘IF’ Connectors (Type ‘SMA’ Female)
The ‘IF’ PRI (Primary) A / SEC (Secondary) B connector pairs are Type 'SMA'
female connectors that provide the IF “baseball” switch for optional
redundant operations.
3.2.3 Utility Connector Group
3.2.3.1 ‘J2 | EXT REF IN’ – External Reference Input Connector (BNC-F)
This BNC female connector is used to supply a master reference to the entire chassis.
The user-supplied input signal is used for phase-locking the internal 10MHz reference
oscillator to a user-provided 5 or 10 MHz station clock. The impedance is matched for
50/75Ω, and requires an input level of 0 ±5 dBm.
3.2.3.2 ‘J8 | EXT REF OUT’ – External Reference Output Connector
(BNC-F)
This BNC female connector provides a 10 MHz reference for customer use. The
impedance is matched for 50/75Ω, and provides an output level of 5 ±3 dBm.