Dell 6.2 Testing the TTY P ort, Selecting th e Dialer Profile

738| W-600 Series Controllers DellPowerConnect W- Series ArubaOS 6.2 | UserGuide
Figure 338: Port I/O error
Onceyo ufi ndone (or more) modem TTY port, configure it in the cellularprofile and test the port.
Testing the TTY P ort
After your TTY port is correctly configured,the port is in the 'Device Ready' state.
Figure 339: Device Ready State
The 'Device Ready' state indicates the port has passed the diagnostic test and is ready.
You can also runextended diagnostics to displays more information about t he modem.
NOTE:Not all m odems supportthe extended AT command set. If the modem hangs after sending an extendedAT comm and;
removing thedevice and then re-inserting it usually fixes the problem
The AT+CSQc ommandqueries is the modem's current signal strength.The first number represents the signal
rangingfrom 1 (poor) to 33 (excellent). In the examplebelow, the strength is in the excellent range(3 1).
Figure 340: usb test extended.
Selecting th e Dialer Profile
The phonenumber, user name,and password (if any) are set in the dialer setting. In the United States, AT&T and
T-Mobile uset he'gsm_us' profile, while Sprint and Verizon use the 'evdo_us'profile. User names and passwords are
not typically usedby U.S. carriers, but they may be requiredby International carriers.
Choose the dialer group that matches your carrier. If one doesn't exist, create a new dialer group with information
fromy our carrier(Figure 341)