Mocomtech CDM-QX User Manual

Page 243

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier® Revision

Appendix C

MN/CDMQX.IOM

C–25

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 Eb/No

N/A

3 bytes

Query only.

Unit returns the value of Eb/No, between 0 and 16 dB, Resolution
0.1 dB.

Returns 99.9 if demod is unlocked.

Example: EBN=12.3 (Eb/No=12.3 dB)

For values greater than 16.0 dB, the reply will be: EBN=+016

N/A EBN?

EBN=xxxx
(see Description of
Arguments)

Equipment ID

N/A

14 bytes

Query only.

Unit returns information on a per module basis concerning the
equipment identification and the option field in the form
abbbcdefghijk, where:

a=Turbo H/W option: 0=None, 1=Turbo, 2=TPC/LDPC
bbb=defines the model number (Qx0 in this case)
c=RS Codec H/W Option: 0=None 1=Installed
d=Module Data Rate S/W Option: 0=None , 3=up
to 5 Mbps, 4=up to 10 Mbps, 5=up to 20 Mbps
e=Higher-order modulation: 0=None, 1=8-PSK/8-QAM,
2=16-QAM, 3=8-PSK, 8-QAM, 16-QAM
f=Spare – for future use
g=Spare – for future use
h=Turbo data rate S/W option: 0=None, 1=up to 512Kbps,
2=up to 2048Kbps, 3=up to 5Mbps, 4=up to 10Mbps,
5=up to 20Mbps
i=Module type: 0=None, 1=Modulator, 2=Demodulator, 3=Quad
Drop & Insert
j=Modem group: 0=ungrouped, 1=grouped as modem#1,
2=grouped as modem#2
k=Spare – for future use
l=Spare – for future use

Example 1: EID=1Qx0033xx31xxx means Turbo installed, CDM-
QX 70/140 band, No RS Codec, up to 5 Mbps, 8-PSK/8-QAM
and16-QAM, Turbo data rate up to 5Mbps, module is modulator.

Example 2: EID=xQx0xxxxxx0xxx, means there’s no mod or
demod module installed. This tells the user that this remote address
belongs to a CDM-Qx.

Example 3: EID=xQx0xxxxx30xxx, means Quad Drop and Insert
module is installed in the Slot (Slot 4 always).

N/A EID?

EID=abbbcdefghijkl
(see Description of
Arguments)

Notes:
QxO is the 70/140 module
(mod or demod)

Qx1 is the L-Band module
(mod or demod)