Comtech EF Data C5 - Manual (Page 72)

Specifications C5/K1/K3 Integrated Satellite Terminal System
2–38 Rev. 0
2.5 Interface Specifications
2.5.1 Clock
2.5.1.1 Transmit Clock Source
The transmit clock can be selected by the operator from the following sources:
( Terrestrial: Must be % 100 PPM of the programmed rate.
( SCT (Internal): % 0.01 PPM.
2.5.1.2 Send Clock Timing Source
The send clock timing source output can be generated from the following sources:
( Internal
( External
( Loop Timed
If loop timing is selected, the send clock timing output can be:
( External: Must be % 100 PPM of the selected data rate.
( Receive Satellite Clock: Data rate must be % 100 PPM of the transmit data rate.
If the asymmetrical clock loop option (ASLT) is selected, the send clock timing output can
be:
( External clock, which can be any multiple of 8 kHz as long as it, is # 32 kHz and
" 4.3.76 MHz, or any multiple of 600 Hz as long as it is # 2.4 kHz and " 64 kHz.
( Receive clock, which can be any multiple of 8 kHz as long as it is # 32 kHz and
" 4.376 MHz or any multiple of 600 Hz as long as it is # 2.4 kHz and " 64 kHz.