Safran CORTEX CRT Quantum - Page 296

COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec.
03, 2021Sept. 30, 2021
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Page 216
One external reference is connected to “EXT 2”
MSP board uses the external reference 2.
EFC board uses its internal reference.
This mode is strongly NOT recommended
No external reference is connected to “EXT 2”
MSP board uses its internal reference.
EFC board uses its internal reference.
This mode is strongly NOT recommended
 Case 4: « Reference frequency » = « External Input 1 or 2 »
This usecase is not implemented because the EFC board has only one external reference input.
The behavior of the CRT is the same as in the case 2.
Important Note
It is strongly recommended to use the mode “Reference Frequency = Input 1”