Paradyne 3821PLUS User Manual
Page 81
AT Commands and S-Registers
4-9
3821-A2-GB20-30
February 1998
Table 4-1
(7 of 13)
3821
Plus AT Commands
&
I
n – Dial Transmit Level for Cellular Auto
When Dial Transmit Level Type is set to Permissive, &
I
n
sets Dial Transmit Level to a value between –10 and – 32 dBm.
&
I
99 and &
I
100 cause the level to be varied automatically according to conditions for ETC operation. &J0 overrides this
command, and is the default for North America.
&
I
0
– 0 dBm
D
D
D
D
&
I
7
–7 dBm
&
I
8
–8 dBm
&
I
9
–9
dBm
&
I
10
–10 dBm
&
I
11
–11 dBm
&
I
12
–12 dBm
&
I
13
–13 dBm
&
I
14
–14 dBm
&
I
15
–15 dBm
&
I
16
–16 dBm (Set by &F5)
D
D
D
D
&
I
32
– 32 dBm
&
I
99
Valid only if ETC is installed. Automatically adjusted according to the ETC1.0 specification. Set by &F6. Use
only with remote modems set to &
I
99, and limit the data rate to 4800 bps (S41 = 5).
&
I
100
Valid only if ETC is installed. Automatically adjusted according to the ETC1.1 specification.
NOTE: The default and permitted settings of this option are country-dependent. See
&J
n – Dial Transmit Type
Sets the power output level of the transmit signal over dial lines. The &
I
n command overrides the &
J
n command.
&J0
Permissive (–9 dBm). Valid only for North America.
&L
n – Leased Mode
Sets the modem for 2-wire leased-line operation in Answer mode or in Originate mode.
&L0
Disables leased-line operation.
&L1
2-wire originate leased-line operation.
&L3
2-wire answer leased-line operation.
The &L command will cause the modem to reset before entering or exiting Leased-Line mode. Therefore, it must be
entered as the last command in an initialization string.
WARNING: Do not configure the modem for leased line operation if the modem is connected to the PSTN.