ZyXEL Communications U-90E, Руководство пользователя

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U-90E Data/Fax Modem
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13.2.1 Analog Loopback Test (AT&T1) ...............................................................13-2
13.2.2 Analog Loopback with Self-test (AT&T8) ..................................................13-2
13.2.3 Local Digital Loopback Test (AT&T3) .......................................................13-2
13.2.4 Remote Digital Loopback Test (AT&T6) ...................................................13-3
13.2.5 Remote Digital Loopback with Self-test (AT&T7)......................................13-3
13.3 Line Condition Report (AT#E1)......................................................................................13-3
13.4 Link Status Report (ATI2)...............................................................................................13-4
Indicator Lights ..........................................................................................................................13-7
13.4.1 Retransmission Indicator ..........................................................................13-7
13.4.2 Dialing Indicator ........................................................................................13-7
13.4.3 Handshaking And Retrain Indicator ..........................................................13-7
Chapter 14 ....................................................................................................................................14-1
Upgrading Your Modem .............................................................................................................. 14-1
14.1 Upgrading by Flash EPROM .........................................................................................14-1
14.2 Kernel Recovery Mode ..................................................................................................14-2
Chapter 15 ....................................................................................................................................15-1
Troubleshooting ..........................................................................................................................15-1
15.1 AT Command Set Problems ..........................................................................................15-1
15.2 Command Echo Problems.............................................................................................15-3
15.3 Auto-Answer Problems ..................................................................................................15-3
15.4 Dialing Problems............................................................................................................ 15-4
15.5 Data Transfer Problems.................................................................................................15-5
15.6 Connection Problems ....................................................................................................15-5
Appendix A....................................................................................................................................... A
Glossary ........................................................................................................................................... A