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Comtech EF Data SDM-2020 User Manual

Page 173

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SDM-2020 Satellite Demodulator

Revision 4

G.703 Data Interface

MN/SDM2020D.IOM

11–7

11.1.4.2

Receive Data Rate 2.048 Mbps Specifications

Refer to Table 11-3 for data rate specifications.

Table 11-3. RX Data Rate 2.048 Mbps

Parameter

Specification

Data Rate

1.544 Mbps,

± 30 ppm

Line Coding

B8ZS and AMI at 2.048 Mbps

Pulse Shape

Rectangular per ITU-T-G.703, Figure 12/G.703.

Jitter Characteristics:
Input Jitter
Output Jitter


Complies with ITU-T-G.824 and Table 1/G824.
In accordance with ITU-T-G.824 and Figure
1/G.824.

11.1.4.3

Receive Data Rate 6.312 Mbps Specifications

Refer to Table 11-4 for data rate specifications.

Table 11-4. RX Data Rate 6.312 Mbps

Parameter

Specification

Data Rate

6.312 Mbps,

± 30 ppm

Line Coding

B8ZS and AMI at 6.312 Mbps

Pulse Shape

Rectangular per ITU-T-G.703, Figure 12/G.703.

Jitter Characteristics:
Input Jitter
Output Jitter


Complies with ITU-T-G.824 and Table 1/G824.
In accordance with ITU-T-G.824 and Figure
1/G.824.

11.1.4.4

Receive Data Rate 8.448 Mbps Specifications

Refer to Table 11-5 for data rate specification.

Table 11-5. RX Data Rate 8.448 Mbps

Parameter

Specification

Data Rate

8.448 Mbps,

± 30 ppm

Line Coding

HDB3 and AMI at 8.448 Mbps

Pulse Shape

Rectangular with pulse width of 59 ns. per ITU-T-G.703, Figure
13/G.703.

Jitter Characteristics:
Input Jitter
Output Jitter


Complies with ITU-T-G.823 and Table 1/G.823.
Complies with ITU-T-G.823 and Figure 1/G.823