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Summary of Contents for ASCOM AM 64/128EA
- Page 1 U S E R G U I D E High Speed Base Band Modems Desktop Versions Ascom part no: 1/265/001/610 for faster transmission Issue 02 – May 2001...
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Page 2: 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. -
Page 3: Table Of Contents
Ordering Information for Modems 4.1.2 Ordering Information for User Interface Modules CONNECTING THE HIGH SPEED MODEM *A copy of the Declaration of Conformity is available upon request from Ascom CONFIGURING THE MODEMS Telecommunications Limited. 4.3.1 Desktop modem to desktop modem with no external timing 4.3.1.1... - Page 4 ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 4.3.3 Desktop unit to Ascom rack system STATUS MENU 6.5.1 Unit Status 4.3.4 Desktop unit to Ascom AM70 Multiplexer 6.5.2 Alarms T R O U B L E S H O O T I N G 6.5.3...
- Page 5 High Speed Base Band Modems U S E R I N T E R F A C E S S C O P E This manual covers the installation and operation of the following Ascom high-speed base X21 (V.11) band modems: 8.1.1...
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Page 6: S Y S T E M D E S C R I P T I O N
X.21 15-way D-type socket • X.21 bis 25-way D-type socket • V.35 34-way MRAC socket • V.36 37-way D-type socket • RS.530 25-way D-type socket • G.703 (64kbps 120ohm ) 9-way D-type socket • Ascom Bridge Router with10BaseT 8-way RJ-45 socket... -
Page 7: Example Applications
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 In this example the master modem accepts timing from the interface and uses this to time functionality precludes the need for external routing devices. -
Page 8: U N I T F E A T U R E
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems U N I T F E A T U R E S FRONT PANEL Program LED Power LED Test LED Receive Fault LED Data LED... -
Page 9: Rear Panel
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems REAR PANEL I N S T A L L A T I O N 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). -
Page 10: Connecting The High Speed Modem
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems CONNECTING THE HIGH SPEED MODEM Your modem should now be connected as illustrated in the following diagram: Connect the mains lead into the IEC type socket on the rear of the unit and plug the other end into an earthed mains supply. -
Page 11: Configuring Slave Unit
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems With your modems connected as described above, the configuration procedure is as follows. • Press the SCROLL DOWN button once. The LCD will indicate the line rate, e.g. 512K: 4.3.1.1... -
Page 12: Desktop Unit To Ascom Rack System
If modems set to independent mode check that 4.3.3 Desktop unit to Ascom rack system the configuration of each end matches. The AM Rack (and MSM Rack) is a high-density 19” DIN41494 rack that allows 12 card style Check that settings have not reverted to default (see section 5.2). -
Page 13: Default Configuration
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems DEFAULT CONFIGURATION 5.3.2 Remote Loop The modem has a default configuration, and reverts to this when: With a BERT still connected as above, turn off the local loop and apply the remote loop. -
Page 14: Setting The Contrast On The Lcd Display
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems F R O N T P A N E L M E N U S Y S T E M F R O N T P A N E L M E N U S Y S T E M 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. -
Page 15: Menu Structure
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems MENU STRUCTURE CONFIG MENU The items in each menu are as shown below: The configuration menu contains the items that define the set-up and mode of operation of the modem. -
Page 16: Modem Mode
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 6.3.1 Modem Mode 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. -
Page 17: Option Menu
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems OPTION MENU 6.4.2.1 V.35 and V.36 The option menu relates to items that are specific to each interface module. For these interfaces the following options are available: •... -
Page 18: Status Menu
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems STATUS MENU • Receive Data. Modems synchronised and far end control signals are on, local end are off. This menu displays alarm information to indicate the operational state of the modem. -
Page 19: Menu Locked/Unlocked
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 6.5.5 Menu Locked/Unlocked TEST MENU To prevent unauthorised tampering with the modem configuration the front panel controls This menu allows the user to set test loops and data tests to analyse the performance of the can be disabled. -
Page 20: Local Loop On/Off
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 6.6.1 Local Loop On/Off 6.6.3 Remote Loop On/Off Turning on the local loop causes the modem to loop data back to the customer interface This causes the modem to apply a loop at the far end modem such that data is looped back (loop 3c –... -
Page 21: Data Test
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 6.6.5 Data Test • 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. -
Page 22: Lamp Test
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems V T 1 0 0 S Y S T E M C O N T R O L You can stop the test by pressing SELECT. The display will show. -
Page 23: Vt100 Requirements
SPACE When installed use the Ascom HSBBM icon to connect to the modem. This connects via the key, press CTRL-C to delete the current value, type the new value and then press RETURN. -
Page 24: Use Of Controls Using Teraterm
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems USE OF CONTROLS USING TERATERM LOGGING IN Once the “Screens Menu” is displayed (on pressing CTRL-V), choose the Password screen to Function Appearance Key Actions in Teraterm Alternative Action log in to the modem. -
Page 25: Screens
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems Once logged in, the message above the login line changes to “Logged in as XXXX” where SCREENS XXXX is the login level. For user login level, the screen will appear as follows:... -
Page 26: Test Counts
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems TEST COUNTS Most of the screens can be used in the same way as the front panel menu control. However, the Test Counts screen requires some explanation: AM64/1024A V3.0... -
Page 27: Changing Passwords
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems CHANGING PASSWORDS U S E R I N T E R F A C E S AM64/1024A V3.0 Password X21 (V.11) Status: No Alarm 8.1.1... -
Page 28: External Timing
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems J2 – X.21 SEXT (External Signal Element Timing) Circuit Termination – This link connects a 120 X.21 BIS (V.24/V.28) ohm load resistor across the SEXT circuit in position 1-3. This helps maintain signal rise times and minimises reflections at rates greater than 9.6kbps over long lines. -
Page 29: V.35 (Mrac) Connector Pin Allocation
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems The circuit 105 - circuit 109 crossover may not be necessary if circuit 105 is clamped to the on 8.3.2 Module Link Settings position (section 6.4.2.2). -
Page 30: Rs530
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems RS530 8.4.2 Module Link Settings 8.4.1 25 Way D-type RS-530 Connector pin allocation Type SITS Unbal A-wire B-wire Circuit Description 89/43 Earth/Shield Common 7,22,... -
Page 31: External Timing
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 8.4.3 External Timing 8.5.2 Module Link Settings 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. -
Page 32: External Timing
ASCOM USER GUIDE ASCOM USER GUIDE High Speed Base Band Modems High Speed Base Band Modems 8.5.3 External Timing ASCOM BRIDGE ROUTER If External timing is required i.e. the modem is to be used as a DTE then a change over cable...
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