Comtech EF Data CDM-570A User Manual

Page 259

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CDM-570A/570AL Satellite Modem with Optional Packet Processor

MN-CDM570A

Serial-based Remote Product Management

Revision 2

8–19

Parameter

Type

Command

(Instruction

Code and

Qualifier)

Arguments for

Command or

Response to

Query

Description of Arguments

Response to

Command

Query

(Instruction Code

and Qualifier)

Response to

Query

Rx FEC Code

Rate

RCR=

1 byte,

value of 0 thru 7,

A to R

Command or Query.

Sets or returns Rx FEC Code Rate in the form x, where:

0 = Rate 5/16 (Turbo Only)

1 = Rate 21/44 (Turbo Only)

2 = Rate 1/2

3 = Rate 2/3 (8-PSK TCM or 8-QAM only)

4 = Rate 3/4

5 = Rate 7/8

6 = Rate 0.95 (Turbo Only)

7 = Rate 1/1 (Uncoded or No FEC)

8 = Reserved

9 = Reserved

The remaining entries are valid only in CDM-570A Compatible Mode

(CMO=1):

A = VersaFEC CCM – BPSK Rate 0.488

B = VersaFEC CCM – QPSK Rate 0.533

C = VersaFEC CCM – QPSK Rate 0.631

D = VersaFEC CCM – QPSK Rate 0.706

E = VersaFEC CCM – QPSK Rate 0.0803

F = VersaFEC CCM – 8-QAM Rate 0.576

G = VersaFEC CCM – 8-QAM Rate 0.642

H = VersaFEC CCM – 8-QAM Rate 0.711

I = VersaFEC CCM – 8-QAM Rate 0.780

J = VersaFEC CCM – 16-QAM Rate 0.644

K = VersaFEC CCM – 16-QAM Rate 0.731

L = VersaFEC CCM – 16-QAM Rate 0.780

M = VersaFEC CCM – 16-QAM Rate 0.829

N = VersaFEC CCM – 16-QAM Rate 0.853

O = VersaFEC CCM ULL– BPSK Rate 0.493

P = VersaFEC CCM ULL– QPSK Rate 0.493

Q = VersaFEC CCM ULL– QPSK Rate 0.654

R = VersaFEC CCM ULL– QPSK Rate 0.734

Note: Selection availability depends on the active FEC and demodulation

type.

Example: <0/RCR=1 (Rate 3/4)

RCR=

RCR?

RCR*

RCR#

RCR+

RCR?

RCR=x

(see Description

of Arguments)

Rx Data Rate

RDR=

9 bytes

Command or Query.

Sets or returns Rx Data Rate in the form xxxxx.xx, where:

xxxxx.xx = value from 2.4 kbps to 10240 kbps

Resolution = 1 bps

Example: <0/RDR=2047.999

RDR=

RDR?

RDR*

RDR#

RDR?

RDR=xxxxx.xxx

(see Description

of Arguments)

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