Multitech RASFinder RF300E User Manual page 158

RASFinder RF300E/RF310E User Guide
Command: Unm
Function: B-channel Loop-back
Unit: Decimal ASCII code
Values: n=1—Loop-back on B1 only,
n=2—Loop-back on B2 only,
n=3—loop-back on both B-channels
m=0—disable loop-back,
m=1—enable loop-back
Default: U30 (no loop-back)
Description: >LBn is a test command that is used mainly for conformance testing. Unm puts
specific B-channels in loop-back within the ISDN transceiver as opposed to the
processor dealing with loop-back as is the case for the >LBn command. For
example, ATU31<CR> sets the ISDN transceiver to loop back both B-channel 1 and
B-channel 2 data. ATU30<CR> disables loop-back on both B-channels.
D.6 Factory Profiles
Profile 0 (&F0) Modem-Like Asynchronous Operation
AT Command
&C1
$D0
&D1
E1
&E4
&E6
&E13
#X0
%E1
%E4
&R1
&RF1
S0=1
S2=43
S3=13
S4=10
S5=8
S7=45
S10=20
S25=5
S32=20
S34=2
S50=0
S52=1
S53=2048
&S1
V1
!Z=x
Profile 1 (&F1)—V.120 Asynchronous Operation
AT Command
&C1
$D0
&D1
E1
&E4
&E6
&E13
#X0
158
Description
DCD functions normally
Disable persistent DTR dialing
Hang up when DTR drops
Enable command mode echo
Enable hardware flow control
Discard XON/XOFF characters
Enable pacing
Disable Sending Multiple Xoff Characters
Enable +++ escape method
No OK response to +++ or <BREAK> escape
CTS always high
CTS is independent of RTS
Answer after 1 ring
Set escape character to + (ASCII 43)
Set carriage return character to CR (ASCII 13)
Set line feed character to LF (ASCII 10)
Set backspace character to BS (ASCII 8)
Wait 45 seconds for connection before aborting
Set DCD drop time to 700 ms
Set DTR detect time to 500 ms
Set escape sequence guard time to 2 seconds
Set maximum escape sequence character length
Caller Line ID disabled
Auto-Protocol Detection Enabled
Maximum X.75 Buffer Size (2048 bytes)
DSR follows DCD
Select verbose messages
The data protocol is not modified
Description
DCD functions normally
Disable persistent DTR dialing
Hang up when DTR drops
Enable command mode echo
Enable hardware flow control
Discard XON/XOFF characters
Enable pacing
Disable Sending Multiple Xoff Characters
RF300E/RF310E