Users Guide

Table Of Contents
436 | W-600 Series Controller Dell PowerConnect ArubaOS 5.0 | [User Guide
Figure 93 Port I/O error
Once you find one (or more) modem TTY port, configure it in the cellular profile and test the port.
Testing the TTY Port
After your TTY port is correctly configured, the port is in the 'Device Ready' state.
Figure 94 Device Ready State
The 'Device Ready' state indicates the port has passed the diagnostic test and is ready.
You can also run extended diagnostics to displays more information about the modem.
The AT+CSQ command queries is the modem's current signal strength. The first number represents the signal
ranging from 1 (poor) to 33 (excellent). In the example below, the strength is in the excellent range (31).
Figure 95 usb test extended.
Selecting the Dialer Profile
The phone number, user name, and password (if any) are set in the dialer setting. In the United States, AT&T
and T-Mobile use the 'gsm_us' profile, while Sprint and Verizon use the 'evdo_us' profile. User names and
passwords are not typically used by U.S. carriers, but they may be required by International carriers.
Choose the dialer group that matches your carrier. If one doesn't exist, create a new dialer group with information
from your carrier (Figure 96)
(host) (support)#show usb test 16 ttyUSB4
Error: Port I/O error. TTY port usb/16/ttyUSB4 inaccessible
(host) (support)#
(host) (config-cellular new_modem)# show usb
USB Device Table
----------------
Address Product Vendor ProdID Serial Type Profile State
------- ------- ------ ------ ------ ---- ------- -----
18 Novatel Wireless CDMA 1410 4100 091087843891000 Cellular new_modem Device ready
(host) (config-cellular new_modem)#
Note: Not all modems support the extended AT command set. If the modem hangs after sending an extended AT command;
removing the device and then re-inserting it usually fixes the problem
(host) #show usb test 18 ttyUSB0 extended
OK
ATI0
Manufacturer: NOVATEL WIRELESS INCORPORATED
Model: U727 SPRINT
Revision: m6800B-RAPTOR65_S-114 [Dec 07 2007 18:00:00]
ESN: 0x5B860A05
+GCAP: +CIS707-A, CIS-856-A, +MS, +ES, +DS
OK
AT+CSQ
31, 99
OK
TTY port responded to modem AT commands
(host) #