vi AS420 Reference Manual
Chapter 2 Installation and Configuration
Introduction .............................................................................................................................................7
Safety Summary ......................................................................................................................................7
Unpacking and Inspection ......................................................................................................................7
Supplied Materials ..................................................................................................................................8
Connections ............................................................................................................................................8
DTE and Network Connections .....................................................................................................8
User Interface Port Connection ........................................................................................................8
Power ................................................................................................................................................9
Configuration ..........................................................................................................................................9
Configuration Switch S1 ................................................................................................................9
E1 Mode Settings .......................................................................................................................9
Framed E1 ...........................................................................................................................9
CRC-4 .................................................................................................................................9
CAS Signalling ...................................................................................................................9
Timing Mode .......................................................................................................................9
Front Panel Rocker ..............................................................................................................9
Not Used .............................................................................................................................9
T1 Mode Settings .....................................................................................................................10
Framing T1 ........................................................................................................................10
CRC-4 ...............................................................................................................................10
Signalling ..........................................................................................................................10
Timing Source ...................................................................................................................10
Network Mode ..................................................................................................................10
Front Panel Rocker ............................................................................................................10
Not Used ...........................................................................................................................10
Supervisory (SUPV) Port ........................................................................................................10
Firmware Download Procedure ...............................................................................................11
Reloading Previous Firmware .................................................................................................11
Power Bypass .................................................................................................................................11
Chapter 3 Testing
Introduction ...........................................................................................................................................13
Indicators ..............................................................................................................................................13
Loopbacks .............................................................................................................................................14
Front Panel Rocker Switch ...................................................................................................................14
Network ..........................................................................................................................................15
Equipment ......................................................................................................................................15
Chapter 4 Terminal Operation
Terminal Interface ................................................................................................................................17
Screen Components ........................................................................................................................17
Header ......................................................................................................................................17
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