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Appendix A – Troubleshooting
Fix 2: To shutdown, select Restart system and wait for about 30 seconds, then turn off power.
Fix 3: Shutdown host OS after shutting down controller.
Remote terminal problems
Unable to access Configuration Mode using the remote terminal interface.
Possible Cause 1: The terminal communication settings do not match the settings of the
ACS-9910 RS-232 interface.
Fix: The default settings for the RS-232 port are 19,200 Baud rate, 8 Data bits, 1 Stop bit, No
Parity, and XON/XOFF Flow control. Make sure the terminal is configured for these settings. If
the settings were changed in Configuration Mode, verify the settings of the ACS-9910 in the
RS-232 Params, Terminal option and change the terminal settings accordingly.
Possible Cause 2: Incompatible RS232 cable.
Fix: Cross pins on the RS-232 cable as shown below (or use a null modem cable). The only
pins used are 2 3 & 5.
1 2 3 4 5 6 7 8 9
X
I
1 2 3 4 5 6 7 8 9
Alert message problems
I am unable to send a Page or FAX using the modem port.
Possible Cause 1: The Page and Fax options are not enabled.
Fix: Go to the Configuration Mode and enable Page and FAX notification via the User Params
menu option.
Possible Cause 2: The default modem initialization string is not compatible with your modem.
Fix: Change the modem initialization string in the User Params option. Refer to your modem
manual for its initialization string.
The following modem models require their own initialization strings.
Modem Model
Motorola
ModemSURFR V.34 28.8
Multitech
Multimodem 2834ZDX
Hayes
Accura 288 V.34+FAX
Practical Peripherals
PM144MT II
GVC F-1128V/T2
US Robotics
Sportster 28800
Initialization String
AT&D\Q1E
AT&D0&E5E0
AT&D0&K4E0
AT&K4
AT&D0&B1&H2
AT&H2&I1&R1&B1
Baud Rate
FAX Class
Up to 38400
Up to 38400
38400 only
Up to 38400
38400 only
38400 only
1 & 2
2 only
1 & 2
2 only
1 & 2
1 only
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