The default configuration...................................................................................................... 49
3.4.1
3.4.2
3.5
Transmit Timing.................................................................................................................... 53
3.5.1
3.5.1.1
Internal Clock (SCT)..................................................................................................... 53
3.5.1.2
3.5.1.3
Loop Timing (SCR)....................................................................................................... 53
3.5.1.4
RS530TFD Clock Recovery ......................................................................................... 53
Receive Timing..................................................................................................................... 53
3.5.2
3.5.2.1
Doppler Buffer Auto...................................................................................................... 53
3.5.2.2
3.5.2.3
3.6
3.6.1
3.6.2
IF Loop-back ........................................................................................................................ 55
3.6.3
Pure Carrier Mode................................................................................................................ 55
3.6.4
3.6.5
BER Measurement ............................................................................................................... 56
3.6.6
3.7
ASI Interfaces...........................................................................................................................56
ACTIVE FRONT PANEL..........................................................................57
4.1
Quick Start Guide ....................................................................................................................57
Bench Test Setup................................................................................................................. 57
4.1.1
Placing Modem Online ......................................................................................................... 59
4.1.2
4.2
The Front Panel........................................................................................................................60
Panel Indicators.................................................................................................................... 60
4.2.1
Keypad & Display ................................................................................................................. 62
4.2.2
Welcome Menu .................................................................................................................... 63
4.2.3
Main Menu............................................................................................................................ 63
4.2.4
Menu Tree Structure ............................................................................................................ 63
4.2.5
4.2.5.1
TX Menu ....................................................................................................................... 65
4.2.5.1.1
The Transmit Menu............................................................................................... 65
4.2.5.1.2
4.2.5.2
RX Menu ...................................................................................................................... 67
4.2.5.2.1
4.2.5.3
INTERFACE Menu ....................................................................................................... 69
4.2.5.4
MONITOR Menu .......................................................................................................... 71
4.2.5.5
FUNCTION Menu......................................................................................................... 75
4.2.5.5.1
4.2.5.5.2
4.2.5.5.3
The CONTROL submenu ..................................................................................... 76
4.2.5.5.4
4.2.5.5.5
4.2.5.5.6
4.2.5.5.7
4.2.5.5.8
4.2.5.5.9
The TESTS submenu ........................................................................................... 79
4.2.5.5.10
The REBOOT option........................................................................................... 79
4.2.6
MANAGING THE MODEM ......................................................................81
5.1
Using the RS-232 Port .............................................................................................................81
5.2
5.3
Using the Ethernet Port ..........................................................................................................82
AMT-70/AMT-73/AMT-75 Installation and Operation
7