Multi-Tech Systems MTA128ST-USB - Manual (Page 38)

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MultiModemISDN User Guide
MTA128ST-USB
Command: &Fn
Function:
Load Quick Setup Profile
Values: n = 0–4
Default: &F0
Description: For quick setup, the TA includes six Quick Setup Profiles, each contains
configuration parameters for a specific type of port operation. To load a
Quick Setup Profile into active memory, use &Fn, where n is the profile
number to load. You then can customize the profile and store it using the &W
command, so it loads automatically on power-up or reset. These profiles are
stored in permanent memory and are not user configurable. (Appendix B.)
&F0
Profile 0 — Modem-like operation (default)
&F1 Profile 1 — V.110 async operation
&F2 Profile 2 — V.120 async operation
&F3 Profile 3 — X.75 async operation
&F4 Profile 4 — MLPPP async operation
Command: &Jn
Function:
Automatic Channel Bundling
Values: n = 0 or 1
Default: n/a
Description: &J1 causes the TA to dial the number given in the dial string again to set up
a bundled PPP connection (also known as MultiLink PPP). Only works with
the PPP/ML-PPP protocol (!Z=9). &J0 will not dial the given number again
and it will not interfere with the given dial string meaning that if there are two
numbers in the dial string (like ATD5551000&5553000) the TA will dial both
of those numbers. &J0 does not disable the dialing of a second number if a
second number is given in the dial string.
n=0
disables automatic channel bundling
n=1 enables automatic channel bundling
Command: &Rn
Function:
CTS Control
Values: n = 0, 1, or 2
Default: &R1 (CTS forced high)
Description: Allows you control the state of the CTS (Clear to Send) signal on the
RS232E/V.24 interface. Normally the CTS signal follows the state of the RTS
signal when the MTA128ST-USB is online.
&R0
CTS acts normally; i.e., it follows RTS
&R1 CTS is forced high, but still provides online flow control
&R2 CTS is forced high, but it drops on disconnect for the period of time
set by S10. CTS still provides flow control when the TA is online.
Command: &Sn
Function:
DSR Control
Values: n = 0, 1, or 2
Default: &S0 (DSR high)
Description: Controls state of DSR (Data Set Ready) signal on RS232E/V.24 nterface. A
high DSR signal indicates to the computer that TA is ready to transmit data.
&S0
DSR is always high.
&S1 DSR acts normally; that is, it follows the state of the CD signal,
which goes high when the MTA128ST-USB detects a carrier signal,
and goes low when the carrier signal is lost.
&S2 DSR is always high, except on disconnect, when it drops for the
period of time set by S10 and then goes high again.