General Commands; Changing From Data Mode To Command Mode (+++); Local Character Echo (E) - Black Box 325 User Manual

MODEM 325 AND MODEM 325 CARD
Table 6-16. DTE Controlled Local Analog Loopback (Pin 18) (*LA).
Command
*LA
*LA1
†default
If the test timeout option is enabled and pin 18 remains high, the modem returns to idle
mode at the end of the test timeout and then immediately reenters the test mode.

6.11 General Commands

These commands control various standard options that in most cases apply to any mode of operation.
6.11.1 C
HANGING FROM
To change from data mode to online command mode, press the escape character three times (+ is the
default). Pause for the length of time set by register S12 (1 second is the default) before and after the
+++ to ensure the modem recognizes the escape command.
This sequence temporarily suspends data mode transmissions and allows command mode operations
without breaking the connection. The modem responds with OK when it detects the escape code.
Return to data mode by entering ATO.
6.11.2 L C
OCAL HARACTER
Type AT without a carriage return. If the screen shows AT, the character echo is set correctly. Proceed
with other commands as desired.
If the screen shows AATT, enter the ATE command to correct the double characters, or disable the local
echo on the terminal.
If the screen shows no characters, type ATE1 to turn the echo on, or enable local echo on the terminal.
7 2
Operation
Ignore pin 18†
LAL enabled (pin 18)
D M C
ATA ODE TO OMMAND
The AT command set must be enabled.
E (E)
CHO
NOTE
M (+ + +)
ODE
NOTE