Comtech EF Data CDM-625 - Manual (Page 356)

CDM-625 Advanced Satellite Modem Revision 15
DoubleTalk Carrier-in-Carrier Option MN-CDM625
10–26
On the bottom line, to edit the power output level and the maximum permitted increase in
power level when in APC Mode: Use the ◄ ► arrow keys to select a digit to edit, and then
use the ▲▼ arrow keys to change the value of that digit. Press ENTER when done.
Note that when APC is in an active state, the value of the power level displayed in the
bottom left will show ‘AUTO’.
6. Go back to the SELECT: CONFIG CnC  MODE menu. On the bottom line, which will be
displaying Activate? N (Y,N), use the ▲▼ arrow keys to select Y(Yes)and then
press ENTER.
The modem display will update, similar to the following example:
The CnC Mode: APC,Side A,C-Band (Off, On, APC)
Suspend? N (Y,N) OK-ReBalance Done ()
The message on the bottom line can be any one of the following:
Displayed Message Expanded Meaning
OK-ReBalance Done Full rebalance was achieved
OK(P)CnCRatio Lim Partial rebalance, limited by CnC ratio approaching its working limit
OK(P)-LocalPwr Min Partial rebalance, limited by local power approaching its lower limit
OK(P)-LocalPwr Max Partial rebalance, limited by local power approaching its upper limit
OK(P)-LocalPwr Lim Partial rebalance, limited by local power approaching TPLI
max
OK(P)-DistPwr Min Partial rebalance, limited by distant power approaching its lower limit
OK(P)-DistPwr Max Partial rebalance, limited by distant power approaching its upper limit
OK(P)-DistPwr Lim Partial rebalance, limited by local power approaching TPLI
max
OK(P)-Incomplete Partial rebalance, algorithm did not fully converge
No APC Frame Sync Communication not possible – no APC frame sync
Locl EbNo too high
The local Eb/No is too high (>16 dB) to determine rebalance params
Dist EbNo too high The distant Eb/No is too high (>16 dB) to determine rebalance params
DistEnd ReBal fail The distant end failed to rebalance
DistEnd NoResponse The distant end failed to respond
Fail-CalcMismatch No Rebalance - the solution calculated by each end does not match
CnC Ratio too high The CnC ratio is too high (>9 dB) for re-balancing to be attempted
LoclMargin too low There is insufficient local Eb/No margin for an APC rebalance
DistMargin too low There is insufficient local Eb/No margin for an APC rebalance
Rx DataRate<64kbps The Rx data rate needs to be 64 kbps or higher for APC
Rx DataRate<64kbps The Tx data rate needs to be 64 kbps or higher for APC