Black Box ME759C-RJ11, May-95 S1 Positions 1 through 4 Data-Rate Setting, S1 Position 7 Protocol

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MULTI-FUNCTION LD CARD

S1 Positions 1 through 4: Data-Rate Setting

Set positions 1 through 4 of switch S1 to determine the data rate (valid for both synchronous and asynchronous protocols) of the Multi-Function LD Card.

S1-1	S1-2	S1-3	S1-4	Data Rate
On	On	On	On	1.2 kbps
Off	On	On	On	1.8 kbps
On	Off	On	On	2.4 kbps
Off	Off	On	On	3.6 kbps
On	On	Off	On	4.8 kbps
Off	On	Off	On	7.2 kbps
On	Off	Off	On	9.6 kbps (default)
Off	Off	Off	On	14.4 kbps
On	On	On	Off	19.2 kbps
Off	On	On	Off	28.8 kbps
On	On	Off	Off	38.4 kbps
Off	On	Off	Off	57.6 kbps

S1 Positions 5 and 6: Clock Source

Set positions 5 and 6 of switch S1 to determine which transmit-clock source the Multi-Function LD Card uses.

S1-5	S1-6	Clock Source
On	On	Internal transmit clock (default)
Off	On	Receive-recover clock
On	Off	External transmit clock

S1 Position 7: Protocol

Set position 7 of switch S1 to determine whether the Multi-Function LD Card operates synchronously or asynchronously.

S1-7	Protocol
On	Asynchronous (default)
Off	Synchronous

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Contents Multi-Function LD Cards FCC Statements MULTI-FUNCTION LD Card NOM Statements Contents Specifications Diagnostics IndicatorsConnectors Temperature PowerWeight FuseIntroduction FeaturesOverview Introduction Main-module switches Setting the Switches on the Main ModuleSwitch S1 Summary On and OFF settings of the DIP switchesS1 Positions 5 and 6 Clock Source S1 Positions 1 through 4 Data-Rate SettingS1 Position 7 Protocol S2 Position 2 2-Wire vs -Wire Operation Switch S2 SummaryS1 Position 8 Carrier-Control Method S2 Positions 4 and 5 RTS/CTS Delay S2 Position 3 V.52 and V.54 Diagnostic TestingS2-6 Signaling-Rate Range S2-7 and S2-8 Word LengthS3-1 and S3-2 Input Impedance Switch S3 SummaryS3-4 Mode Selection Recommended Impedance SettingsS3-5 DTE RS-232 Initiation of Local Loopback Test S3-6 DTE RS-232 Initiation of Remote Loopback TestS3-7 and S3-8 Antistream Control Setting the Jumpers on the Interface ModuleFour interface modules Jumper locations Line Interface Line Shield Connection to Frame Ground JB2 Summary of Interface-Module Jumper FunctionsJB5 Serial Interface Signal Ground and Frame Ground JB4MicroRacks An Overview InstallationMicroRacks’ Power Supply Installing the Multi-Function LD Card in the MicroRack Pinout of the RS-232 Interface RS-232 Serial Cables and ConnectorsPinout of the 10-Pin RJ Interface Modem-to-Modem Line Cables and Connectors AT&T standard modular color codes Line-Cable PinoutsMultipoint Applications Two-pair star wiring for host and slave CardsStatus LEDs Operation and DiagnosticsRTS and CD Indicators Diagnostic Testing Using the Error LED Power-Up V.54 and V.52 Diagnostic Tests Remote Digital Loopback RDL Using the V.52 Bert Test Independently Calling Your Supplier TroubleshootingShipping and Packaging Appendix Cable Recommendations Wire Gauge Capacitance ResistanceMULTI-FUNCTION LD Card Copyright 1995. Black Box Corporation. All rights reserved