ASCOM AM 64/768A User's Guide

High Speed Base Band ModemsDesktop Versionsa for faster transmissionUSER GUIDEAscom part no:1/265/001/610Issue 02 – May 2001

ASCOM USER GUIDEHigh Speed Base Band Modems17Your modem should now be connected as illustrated in the following diagram:4.3 CONFIGURING THE MODEMS4.3.

ASCOM USER GUIDEHigh Speed Base Band Modems19• Press the SCROLL DOWN button once. The LCD will indicate the line rate, e.g. 512K:• Press the SELECT bu

ASCOM USER GUIDEHigh Speed Base Band Modems215.1 QUICK GUIDE TO BASIC FAULT FINDINGNo. Symptom Possible Fault Corrective Action 1 Power LED does Blown

ASCOM USER GUIDEHigh Speed Base Band Modems235.3.2 Remote LoopWith a BERT still connected as above, turn off the local loop and apply the remote loop.

ASCOM USER GUIDEHigh Speed Base Band Modems25FRONT PANEL MENU SYSTEMThe front panel menu system allows you to make all the necessary changes to config

ASCOM USER GUIDEHigh Speed Base Band Modems276.3 CONFIG MENUThe configuration menu contains the items that define the set-up and mode of operation oft

ASCOM USER GUIDEHigh Speed Base Band Modems29This wide choice of data rates allows the link to be set for optimal operation, the lower speedrates allo

ASCOM USER GUIDEHigh Speed Base Band Modems316.4.2.1 V.35 and V.36 For these interfaces the following options are available:• 105 Set On. Clamps line

ASCOM USER GUIDEHigh Speed Base Band Modems33• Receive Data. Modems synchronised and far end control signals are on, local end are off.• Send Data. Mo

ASCOM USER GUIDEHigh Speed Base Band Modems356.6 TEST MENUThis menu allows the user to set test loops and data tests to analyse the performance of the

1ASCOM USER GUIDEHigh Speed Base Band ModemsThe information in this document is confidential toa Telecommunications Ltd and may not bedisclosed or rep

ASCOM USER GUIDEHigh Speed Base Band Modems376.6.3 Remote Loop On/OffThis causes the modem to apply a loop at the far end modem such that data is loop

ASCOM USER GUIDEHigh Speed Base Band Modems39• Injecting Errors. The data test will be run using a PRBS pattern with an error inserted into it once ev

ASCOM USER GUIDEHigh Speed Base Band Modems417.1 QUICK SET-UP GUIDEThe following sections will provide step by step guidance for the use of the VT100

ASCOM USER GUIDEHigh Speed Base Band Modems437.2.2 Terminal RequirementsAny suitable VT100 type terminal emulator such as Windows HyperTerminal can be

ASCOM USER GUIDEHigh Speed Base Band Modems457.4 LOGGING INOnce the “Screens Menu” is displayed (on pressing CTRL-V), choose the Password screen tolog

ASCOM USER GUIDEHigh Speed Base Band Modems477.5 SCREENSThe following example shows the screens available at the user login level:The window is divide

ASCOM USER GUIDEHigh Speed Base Band Modems49Item Description Explanation A General Statistics These counters record the general performance since t

ASCOM USER GUIDEHigh Speed Base Band Modems518.1 X21 (V.11)8.1.1 15 Way D-type X.21 (V.11) Connector pin allocation.8.1.2 Module Link SettingsJ1 - X.2

ASCOM USER GUIDEHigh Speed Base Band Modems538.2 X.21 BIS (V.24/V.28)8.2.1 25 Way D-type X.21 bis (V.24/V.28) Connector pin allocation.8.2.2 Module Li

ASCOM USER GUIDEHigh Speed Base Band Modems558.3.2 Module Link SettingsJ1 – V35 Circuit 113 (External Signal Element Timing) Input Polarity Selection

COMPLIANCE NOTES AND SAFETY INSTRUCTIONS 12.1 INTRODUCTION 92.2 EXAMPLE APPLICATIONS 102.2.1 Desktop modem to desktop modem with no external timing 10

ASCOM USER GUIDEHigh Speed Base Band Modems578.4.2 Module Link SettingsJ1 – RS530 Circuit 103 (Transmit data) Circuit Termination – This link connects

ASCOM USER GUIDEHigh Speed Base Band Modems598.5.2 Module Link SettingsJ1 – V.36 Circuit 103 (Transmit data) Circuit Termination – This link connects

ASCOM USER GUIDEHigh Speed Base Band Modems618.7 ASCOM BRIDGE ROUTERThis module provides all the features of an Ethernet Bridge/Router and requires se

4.3.3 Desktop unit to Ascom rack system 204.3.4 Desktop unit to Ascom AM70 Multiplexer 205.1 QUICK GUIDE TO BASIC FAULT FINDING 215.2 DEFAULT CONFIGUR

ASCOM USER GUIDEHigh Speed Base Band Modems7This manual covers the installation and operation of the following Ascom high-speed baseband modems:AM 64/

ASCOM USER GUIDEHigh Speed Base Band Modems92.1 INTRODUCTIONAll versions of the High Speed Base Band Modems provide synchronous communication ofdata o

ASCOM USER GUIDEHigh Speed Base Band Modems112.2.4 Desktop unit to Ascom AM70 MultiplexerThis arrangement connects the modem via the AM70 multiplexer

ASCOM USER GUIDEHigh Speed Base Band Modems133.1 FRONT PANELItem FunctionLCD Liquid Crystal Display. Modem displays menu system here.Power LED Green

ASCOM USER GUIDEHigh Speed Base Band Modems154.1 UNPACKING AND CONSIGNMENT CHECKThe desktop version of the high speed modem comes packed complete with