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CHAPTER 5: Commands
Y
n
Selects power-on/reset default configuration.
*
Y0
(zero)
Default is profile 0 setting in NVRAM.
Y1
Default is profile 1 setting in NVRAM.
Y2
Generic Template (&F0).
Y3
Hardware Flow Control (&F1).
Y4
Software Flow Control (&F2).
Z
n
Resets modem.
Z0
(zero)
Resets modem to NVRAM profile selected
by Y command.
Z1
Resets modem to NVRAM profile 0.
Z2
Resets modem to NVRAM profile 1.
Z3
Resets modem to factory-default profile 0
(&F0).
Z4
Resets modem to factory-default profile 1
(&F1).
Z5
Resets modem to factory-default profile 2
(&F2).
&$
Displays a list of ampersand (&) commands.
&A
n
Enables/disables ARQ codes.
&A0
(zero)
ARQ result codes disabled.
&A1
ARQ result codes enabled.
&A2
V.32 modulation indicator added.
*
&A3
Protocol indicators added—LAPM/MNP/
NONE (error control) and V.42 bis/MNP
(data compression).
&B
n
Sets modem’s serial-port rate.
&B0
Variable, follows connection rate.
*
&B1
Fixed serial-port rate.
&B2
Fixed in ARQ mode, variable in non-ARQ
mode.
&C
n
Controls Carrier Detect (CD) signal.
&C0
(zero)
CD override.
*
&C1
Normal CD operations.
*Default
