Receive Clock Jitter; Receive Data Phase Adjustment; Receive Data Stable Condition; Receive Doppler/Plesiochronous Buffer Size - Comtech EF Data SDM-300A Installation And Operation Manual

Specifications
C.6.3.8

Receive Clock Jitter

The RX clock will have less than 2% jitter.
C.6.3.9

Receive Data Phase Adjustment

The RX data phase can be set by the operator to Normal or Inverted.
C.6.3.10

Receive Data Stable Condition

Received data will be held stable (all 1's) at the output of the modem for the fault
conditions listed in the Fault tree, then set RX AIS.
C.6.3.11

Receive Doppler/Plesiochronous Buffer Size

The RX Doppler buffer size can be set by the operator from:
•
•
•
•
C.6.3.12

Buffer Centering

The operator can set the buffer to 50% .The modem will automatically set the buffer to
50% after receive signal acquisition or a buffer overflow/underflow.
C.6.3.13

Switch Faults

Modulator Fault
Demodulator Fault
C–40
Bypass.
32 to 262,144 bits, in 16 bit steps.
Selectable in ms, from 2 to 98 in 2 ms steps, based on the data rate.
Selectable Frame Format G.704 or None.
Open collector output, 15V maximum, 20 mA maximum current
sink, fault is open circuit.
Open collector output, 15V maximum, 20 mA maximum current
sink, fault is open circuit.
SDM-300A Satellite Modem
Rev. 4