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6.11.17 A
R
UTO
ETRAIN
This option allows the modem to automatically retrain in response to poor received signal quality without
a reconnection. The modem will always respond to a retrain request from the remote modem.
Command
%E
%E1
†default
6.11.18 P
R
RODUCT
EVISION
The %V command displays the product revision level.
6.11.19 P
S
RODUCT
ERIAL
The $V command displays the product serial number.
6.11.20 P
/P
ERMISSIVE
For dial-up operation the modem transmitter output can be set for two different modes of operation. In
permissive (RJ11 jack), transmit output level is set to -9 dBm. To set the modem for permissive mode
enter AT%Z. In programmable (RJ45 jack) operation, the transmit level can be set by an external
program resistor. This mode is selected with AT%Z1.
Command
%Z
%Z1
†default
Asterisks in AT commands are part of the command and do not indicate footnotes.
(%E)
Table 6-30. Auto Retrain (%E).
Operation
Disable auto retrain
Enable auto retrain†
L
(%V)
EVEL
N
($V)
UMBER
(%Z)
ROGRAMMABLE
Table 6-31. Permissive/Programmable (%Z).
Operation
RJ-11 (permissive)†
RJ-45 (programmable)
CHAPTER 6: Asynchronous Operating Commands
NOTE
7 9
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