American Telecom AM64/128A manual Menu Operation, Front Panel Features

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Menu Operation	AM64/128A User Manual

5.MENU OPERATION

5.1Front Panel Features

The Baseband Modem has an uncluttered and easy to understand front panel. It has a liquid crystal display (LCD), 5 LED’s, and 6 non-locking keys. With the 16 character alphanumeric, dot-matrix liquid crystal display it is possible to describe most of the functions in plain English, thus avoiding having to use complicated mnemonics and the need to constantly refer to a hand book.

The 6 front panel keys are as follows:
MENU (left and right)	Used to change menus.
SCROLL (up and down)	Used to scroll through items within a menu.
SELECT	Used to activate/deactivate the feature displayed.
TX NRDY	Used to send a Not Ready pattern to line.
	This pattern is termed Controlled Not Ready (CNR) and consists
	of alternate 1's and 0's with the status line OFF. (Note that the
	pattern will not be sent if there is a loop back in operation.)

The LCD display is complemented by the use of 5 LED ‘s to indicate the following :

(1)FAULT (Red LED)

This is lit to indicate the line signal is faulty; the main causes of this are as follows:

(1)No signal received (i.e. line broken / disconnected)

(2)Incorrect line rate

(3)Incorrect user data rate

Further information is provided in the status menu, (see section 5.3.2).

(2)TM, [Test Mode] (Red LED)

This is illuminated when ever a test mode is active, (i.e. a pattern is being generated, or a loop is being applied).

(3)RX NRDY, [Not Ready received from line] (Yellow LED)

This lights whenever a Not Ready pattern is being received (UNR or CNR), and a structured user rate is in use, (a rate which has a status line)

(4)RXD, [Received Data] (Yellow LED)

This indicates the presence of the user data, (on for a '1' / off for a '0').

(5)TX NRDY, [Transmitting Not Ready] (Yellow LED)

This is provided to display the state of the TX NRDY key. On means the TX NRDY key has been pressed.

If the equipment is left in a display other than Status for greater than one minute the display will automatically time out and revert to the top line of the status menu.

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Contents ATL Part No /203/002/610 Issue 4 September Base Band ModemInformation Contained This Document is Confidential to Contents Appendix B Introduction International ModelsConstructional Details Baseband ModemsInterface Modules System Overview System Overview Installation TestingBBM to BBM Link Self Test PassLTU Ready No Alarm LTU Not Ready Link ModeNetwork Mode BBM to Line Card LinkFront Panel Features Menu OperationLoop back Off Loop back OnStatus Menu Over all StatusLoop Active Alarm Status No Alarm No Signal Receiving AIS No AlignmentLOS/CD Fail CD FailUser Rate Line RateInterface Status Operating Mode Link Mode Network ModeTest Menu Local loopLocal loop from menu Top level display shows Loc Loop Off Loc Loop OnLoopback Local loop from DTELoopback is applied by selecting the display Loopback Off Loopback OnRemote Loop Remote Loop from menuRem Loop Off Rem Loop OnBinary Patterns Remote loop from DTEBin Keys Off Sending Bin Error Count Bit Error Rate BER = User Data Rate x Time Data TestOverview OperationErrors nnnnnn Errors s000001Errors Data TestInjection Mode Transparent ModeInjecting 0s Injecting 1sService Test Svc TestComms Evp Rx Evp Tx Time If the count is stopped the display is StopLamp Test Self TestCommunication Channel Loopback Comm Loop OffRate Menu Rate 4.8KMaster 64K BT Slave 4.8K Option Menu 2 X.21bisAsynchronous Mode Signalling Rate3 G.703 Character Length Char LenConfiguration Menu Master SlaveLine Rate 3 X.21 Loop Control ModemSynchronisation Type for software versions below Synchronisation Type for software version V1.3 and above Ext Byte ClkExt Bit Clk Internal Clk5 64k Mode Power LevelMenu Lock Glossary of Terms Band circuits General Specifications Way D type X.21 bis V.24 / V.28* Connector pin allocation Way D-type X.21 V.11 Connector pin allocationAppendix a Interface Pin Connections Mrac Connector Pin allocation Way D-type V.36 Connector pin allocationWay D-type RS-530 Connector pin allocation Line ConnectorAppendix B Internal Link Settings Page Interface Modules Interface ModuleRS530 Interface Module 21bis Interface ModuleService Test Facilities Frame StructureAppendix C In Service Test LVD Safety Statements TTE Network and Safety statementsAppendix E 21 bit timing cable 15 way to 15 way D type plugs21 byte timing cable 15 way to 15 way D type plugs 24 / V.28 bit timing cable 25 way to 25 way D type plugs35 bit timing cable 34 way to 34 way Mrac plugs 21 bis V.36 bit timing cable 37 way to 37 way D type plugs RS530 bit timing cable 25 way to 25 way D type plugsAppendix F Troubleshooting Slave Mode 64K Rate Power 10dBmMaster Mode C 64K Rate Rate 64K