|
 |
|
Micro House PC Hardware Library Volume II: Network Interface Cards And Modems
by Micro House International, Inc. and Scott Mueller
Que, Macmillan Computer Publishing
ISBN: 078971664x Pub Date: 06/17/98
|
LINE SIGNAL LEVEL
|
Type:
| Configuration
|
Format:
| AT [cmds] %L [cmds]
|
Example:
| AT %L &W<CR>
|
Description:
| Returns received line signal level.
|
MAXIMUM BLOCK SIZE FOR TRANSMISSION
|
Type:
| Configuration
|
Format:
| AT [cmds] \An [cmds]
|
Example:
| AT \A1 \A1 %C1<CR>
|
Description:
| Sets the maximum transmittable block size.
|
Command
| Function
|
\A0
| MNP block size is 64 characters.
|
\A1 | MNP block size is 128 characters.
|
\A2
| MNP block size is 192 characters.
|
\A3
| MNP block size is 256 characters.
|
MNP10 TRANSMISSION LEVEL
|
Type:
| Configuration
|
Format:
| AT [cmds] -SECn,a [cmds]
|
Example:
| AT-SEC1,24<CR>
|
Default:
| Unidentified
|
Range:
| a=0-30
|
Unit:
| -1 dBm
|
Description:
| Enables/disables and sets the transmission level for MNP10.
|
Command
| Function
|
n=0
| MNP10 disabled.
|
n=1
| MNP10 enabled.
|
MODULATION SELECTION
|
Type:
| Configuration
|
Format:
| AT [cmds] +MS=xx,y,zzz,aaa [cmds]
|
Example:
| AT +MS11,1,300,28800 &W<CR>
|
Description:
| Sets options for active protocol. The transfer rates specified by z and a must be valid for the protocol selected.
|
Command
| Function
|
x=0
| V.21
|
x=1
| V.22
|
x=2
| V.22bis
|
x=3
| V.23
|
x=9
| V.32
|
x=10
| V.32bis
|
x=11
| V.34
|
x=64
| Bell 103A
|
x=69
| Bell 212A
|
x=74
| V.FC
|
y=1
| Auto-detect highest speed enabled.
|
y=0
| Automode disabled.
|
z, a=300
| Set minimum or maximum transfer rate at 300bps, respectively.
|
z, a=1200
| Set minimum or maximum transfer rate at 1200bps, respectively.
|
z, a=2400
| Set minimum or maximum transfer rate at 2400bps, respectively.
|
z, a=4800
| Set minimum or maximum transfer rate at 4800bps, respectively.
|
z, a=7200
| Set minimum or maximum transfer rate at 7200bps, respectively.
|
z, a=9600
| Set minimum or maximum transfer rate at 9600bps, respectively.
|
z, a=12000
| Set minimum or maximum transfer rate at 12000bps, respectively.
|
z, a=14400
| Set minimum or maximum transfer rate at 14400bps, respectively.
|
z, a=16800
| Set minimum or maximum transfer rate at 16800bps, respectively.
|
z, a=19200
| Set minimum or maximum transfer rate at 19200bps, respectively.
|
z, a=21600
| Set minimum or maximum transfer rate at 21600bps, respectively.
|
z, a=24000
| Set minimum or maximum transfer rate at 24000bps, respectively.
|
z, a=26400
| Set minimum or maximum transfer rate at 26400bps, respectively.
|
z, a=28800
| Set minimum or maximum transfer rate at 28800bps, respectively.
|
REPORT INFORMATION
|
Type:
| Immediate
|
Format:
| AT [cmds] In [cmds]
|
Example:
| AT I1 I1 O<CR>
|
Description:
| Displays modem properties.
|
Command
| Function
|
I0
| Reports product code.
|
I1
| Reports firmware checksum.
|
I2
| Reports firmware checksum result. (Report OK if correct)
|
I3
| Reports firmware revision.
|
I4
| Reports identifier string.
|
I5
| Reports country code.
|
I6
| Reports Data Pump modem and revision.
|
REPORT SIGNAL QUALITY
|
Type:
| Configuration
|
Format:
| AT [cmds] %Q [cmds]
|
Example:
| AT %Q &W<CR>
|
Description:
| Reports signal quality.
|
SLEEP TIMER
|
Format
| AT [cmds] S24=n [cmds]
|
Example:
| ATS24=40 <CR>
|
Default:
| 0
|
Range:
| 0 - 255
|
Unit:
| 1 second
|
Description:
| Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.
|
TRANSMISSION LEVEL
|
Type:
| Configuration
|
Format:
| AT [cmds] @Mn [cmds]
|
Example:
| AT @M25 &W<CR>
|
Default:
| 0
|
Range:
| 11-30
|
Unit:
| -1 dBm
|
Description:
| Sets the signal level for transmission.
|
Command
| Function
|
@M0 | -26dBm
|
@M1
| -30dBm
|
@M2-@M10
| -10dBm
|
VOICE SENSING OFF-HOOK
|
Type:
| Configuration
|
Format:
| AT [cmds] #CEXT=n [cmds]
|
Example:
| AT #CEXT=1 &W<CR>
|
Description:
| During Voicemail monitoring, user can pick-up phone on any extension phone, other than the one hooked-up to the modem.
|
Command
| Function
|
#CEXT=0
| Sensing disabled.
|
#CEXT=1 | Sensing enabled.
|
#CEXT?
| Displays current value.
|
#CEXT=?
| Displays valid range.
|
|