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ASCOM AM 64/128EA Operation & User’s Manual

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ASCOM AM 64/128EA User Manual
ASCOM AM 64/128EA User Guide
ASCOM AM 64/128EA Online Manual

Text of ASCOM AM 64/128EA User Guide:

  • ASCOM USER GUIDE High Speed Base Band Modems 45 7.4 LOGGING IN Once the “Screens Menu” is displayed (on pressing CTRL-V), choose the Password screen to log in to the modem. This appears as follows: The position of the cursor at the bottom of the screen is the login line. To login you must press the SPACE key to enter edit mode. There are four login levels,

  • ASCOM AM 64/128EA, 1ASCOM USER GUIDE High Speed Base Band Modems The information in this document is confidential to a Telecommunications Ltd and may not be disclosed or reproduced in whole or in part without their written consent © a Telecommunications Ltd 2001 ASCOM USER GUIDE High Speed Base Band Modems Note The information contained in this document is supplied without liability for errors or omissions. Ascom Telecommunications Limited reserves the right to make changes to this document at any time without notice. Compliance Notes and Safety Instructions: Caution – Hazardous voltage inside the equipment Safety Instructions: 1. This is a CLASS 1 product

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 13 3.1 FRONT PANEL Item Function LCD Liquid Crystal Display. Modem displays menu system here. Power LED Green LED is lit when unit is powered. Fault LED Red LED is lit when unit is not in synchronisation (sync). Test LED Red LED is lit when a loop is applied to modem, the modem is applying a remote loop or the unit is running a data test. Receive data LED Amber LED indicates the received data status of the transmission line. Program LED Amber LED is lit when new configuration settings have been made but not committed to memory. Menu Select Buttons Righ

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 57 8.4.2 Module Link Settings J1 – RS530 Circuit 103 (Transmit data) Circuit Termination – This link connects a 120 ohm load resistor across the 103 circuit in position 1-3. This helps maintain signal rise times and minimises reflections at greater than 9.6kbps over long lines. At lower rates and over short lines the termination resistor may be omitted, (link set position 1-2). J2 – RS530 Circuit 113 (External Signal Element Timing) Circuit Termination – This link connects a 120 ohm resistor across the 113 cir

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 39 • Injecting Errors. The data test will be run using a PRBS pattern with an error inserted into it once every second. These errors will be displayed on the error count display. Pressing the SCROLL DOWN button displays one of the following messages. This displays the duration the test has been run in seconds. This indicates that the modem is waiting for the received data to align with transmitted PRBS pattern. You can stop the test by pressing SELECT. The display will show. Pressing SELECT will star

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 59 8.5.2 Module Link Settings J1 – V.36 Circuit 103 (Transmit data) Circuit Termination – This link connects a 120 ohm load resistor across the 103 circuit in position 1-3. This helps maintain signal rise times and minimises reflections at greater than 9.6kbps over long lines. At lower rates and over short lines the termination resistor may be omitted, (link set position 1-2). J2 – V.36 Circuit 113 (External Signal Element Timing) Circuit Termination – This link connects a 120 ohm resistor across the 113

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 49 Item Description Explanation A General Statistics These counters record the general performance since the last time the modem was reset/powered up. Total Time The number of seconds that unit has been running. Avail Time The number of seconds that unit has been in sync. Error Secs The number of seconds within which the unit has detected at least one CRC error. SVErr Secs The number of seconds within which the unit has detected more that 1 in 100,000 CRC errors. Link Br

  • ASCOM USER GUIDE High Speed Base Band Modems 15 4.1 UNPACKING AND CONSIGNMENT CHECK The desktop version of the high speed modem comes packed complete with a 1.5m mains lead fitted with a country variant mains plug, an RJ45 to RJ45 line cord and where necessary, an RJ45 to BT style converter lead (where applicable). Each modem comes with its appropriate user interface module fitted

  • ASCOM USER GUIDE High Speed Base Band Modems 55 8.3.2 Module Link Settings J1 – V35 Circuit 113 (External Signal Element Timing) Input Polarity Selection – This aspect of the V35 interface may be implemented differently by different manufacturers. This link allows the authorised personnel to swap the polarity of the A and B wires of this differential input circuit. The factory defaul

  • ASCOM USER GUIDE High Speed Base Band Modems 35 6.6 TEST MENU This menu allows the user to set test loops and data tests to analyse the performance of the data link. Local Loop On/Off Loopback On/Off Remote Loop On/Off V54 Loop On/Off Data Test On/Off In Service Test Lamp Test Self Test Select Pair Number of Errors Received Patten Type Time Select Pair Local CRC Errors Far end CRC Errors Time

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 61 8.7 ASCOM BRIDGE ROUTER This module provides all the features of an Ethernet Bridge/Router and requires separate configuration. For this reason, the module comes with its own user manual. The part number for this is 1/269/001/610. 8 60 ASCOM USER GUIDE High Speed Base Band Modems 8.5.3 External Timing If External timing is required i.e. the modem is to be used as a DTE then a change over cable will be required as shown in the diagram below: 8.6 G.703 CODIRECTIONAL 64K 8.6.1 9 Way D-type Connector pin allocation 8.6.2 Module Link Settings There are no links with this module 8.6.3 External Timing G.703 ha

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 29 This wide choice of data rates allows the link to be set for optimal operation, the lower speed rates allowing transmission over higher attenuation cables. Note: any modem fitted with a G703 interface can only be set to 64k. 6.3.4 Internal / External Timing If a modem is configured as MASTER then you also have the option to synchronise the modem to an external clock. This allows your master modem to be set-up as a DTE. Note DTE set-up will also require a switch over cable to configure the user interface connector in a D

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 43 7.2.2 Terminal Requirements Any suitable VT100 type terminal emulator such as Windows HyperTerminal can be used to provide basic functionality, but we recommend that Teraterm is used. A copy of this may be downloaded from: http://www .ascom-telecom.co.uk/transmission/support This will run on MS Windows 9.x and Windows NT. Follow the on-screen instructions to install it. When installed use the Ascom HSBBM icon to connect to the modem. This connects via the serial port with a baud rate of 9600, 8 data

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 31 6.4.2.1 V.35 and V.36 For these interfaces the following options are available: • 105 Set On. Clamps line 105 permanently ON. • 106 Delay. Causes line 106 to follow 105 after a delay of about 20mS • 107 Set On. Clamps line 107 permanently ON. • 108/1 Set On. Clamps line 108 permanently ON. 6.4.2.2 X.21 bis (V.24/V.28) For this interface the following options are available: • 105 Set On. Clamps line 105 permanently ON. • 106 Delay. Causes line 106 to follow 105 after a delay of about 20mS • 107 = 108/1. Causes 107 to follow the condition of 108. • 108/1 Set On. Clamps line 108 permanently ON. 6.4.2.3 X.21 For this

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 11 2.2.4 Desktop unit to Ascom AM70 Multiplexer This arrangement connects the modem via the AM70 multiplexer on towards a network. 2.2.5 Ethernet LAN to Ethernet LAN With the Ascom Bridge Router fitted, the modems can provide a WAN connection between two Ethernet LANs via a 10BaseT port. Full routing and Network Address Translation functionality precludes the need for external routing devices. In this mode, the timing originates from the internal clock of the master. 1 or 2 copper pairs

  • ASCOM AM 64/128EA, 4.3.3 Desktop unit to Ascom rack system 20 4.3.4 Desktop unit to Ascom AM70 Multiplexer 20 5.1 QUICK GUIDE TO BASIC FAULT FINDING 21 5.2 DEFAULT CONFIGURATION 22 5.3 LINK PERFORMANCE 22 5.3.1 Local Loop 22 5.3.2 Remote Loop 23 5.3.3 Far End Local Loop 23 6.1 SETTING THE CONTRAST ON THE LCD DISPLAY 25 6.2 MENU STRUCTURE 26 6.3 CONFIG MENU 27 6.3.1 Modem Mode 28 6.3.2 Number Of Line Pairs 28 6.3.3 Line Rate 28 6.3.4 Internal / External Timing 29 6.3.5 Interface Control Line Transfer 29 6.3.6 Transmit power 29 6.4 OPTION MENU 30 6.4.1 Interface Type / Info 30 6.4.2 Interface Settings 30 6.4.2.1 V.35 and V.36 31 6.4.2.2 X.21 bis (V.24/V.28) 3

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 41 7.1 QUICK SET-UP GUIDE The following sections will provide step by step guidance for the use of the VT100 control features of the HSBBM. For those experienced in VT100 control, this section provides a brief guide to the use of this feature. Please refer to the relevant detailed section if you are not clear on any point. 7.1.1 Before you start To manage the High-speed Baseband Modem from a PC, you will need: • A standard straight connected 9-pin D-type to 9-pin D-type cable. • A terminal emulator set to VT100 at 9600 bauds, 8 data bits,

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 25 FRONT PANEL MENU SYSTEM The front panel menu system allows you to make all the necessary changes to configuration and set up via the front panel buttons and liquid crystal display. You can navigate between menus using the MENU LEFT and MENU RIGHT buttons, and navigate between items in each menu by using the SCROLL UP and SCROLL DOWN buttons. Items in all the menus can be chosen using the select button. Items in the TEST menu become active as soon as they are selected. Items i

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 51 8.1 X21 (V.11) 8.1.1 15 Way D-type X.21 (V.11) Connector pin allocation. 8.1.2 Module Link Settings J1 - X.21 T (Transmit data) Circuit Termination This link connects a 120 ohm load resistor across the T circuit in position 1-3. This helps maintain signal rise times and minimises reflections at rates greater than 9.6 kbps over long lines. At lower rates and over short lines the termination resistor may be omitted, (link set position 1-2). 3 1 2 3 1 2 J1 J2 Interface Module - Top View

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 19 • Press the SCROLL DOWN button once. The LCD will indicate the line rate, e.g. 512K: • Press the SELECT button until the desired rate appears. • Press the PROG button to implement your settings. The PROGRAM LED will go out. This confirms the changes have been made to set the modem to MASTER, at the specified data rate and in the case of the two pair modem, with either one or two pairs in operation. 4.3.1.3 Synchronisation If unconnected the modems should now show the message: The green POWER LED and the red FAULT LED should also be lit. If the modems are connected then, after approximately a minute the red FAULT LE

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 47 7.5 SCREENS The following example shows the screens available at the user login level: The window is divided into two sections by a divider bar; the top part is used for information that is displayed regardless of the selected screen and the bottom is used for the screen items, i.e. settings that can be viewed and/or changed. The status displayed above the divider bar on the left is the same or similar text as that displayed on the LCD on the front panel except that in some cases it may be blinking. The available screens are: Screen

  • ASCOM AM 64/128EA, ASCOM USER GUIDE High Speed Base Band Modems 17 Your modem should now be connected as illustrated in the following diagram: 4.3 CONFIGURING THE MODEMS 4.3.1 Desktop modem to desktop modem with no external timing A modem to modem link (as in diagram 2.2.1) requires a straight through connection, i.e. pair one of the first modem connects to pair one of the second modem. If using two pair modems in their two pair mode, the second pair of each modem should also be directly connected. The units will not operate if the pairs are crossed over. One end of the link will need to be

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