Black Box ME475A-R2, Manual

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Black Box Short Range Modem
TABLE OF CONTENTS
1. General Information ..........................................................................................5
1.1 Features ................................................................................................5
1.2 Description ............................................................................................5
2. Configuration Overview ....................................................................................6
2.1 Configuration Switches .........................................................................6
2.2 Configuration Switch Set “S1” ...............................................................7
Switches S1-1 through S1-4: Data Rate Setting .................................7
Switches S1-5 and S1-6: Clock Source ..............................................8
Switch S1-7: Asynchronous/Synchronous Mode ................................8
Switch S1-8: Carrier Control Method ..................................................9
2.3 Configuration Switch Set “S2” ...............................................................9
Switches S2-1 and S2-2: Word Length .............................................10
Switch S2-3: Extended Signaling Rate .............................................10
Switches S2-4 and S2-5: RTS/CTS Delay ........................................10
Switch S2-6: V.54 Loopback Test Enable ........................................11
Switch S2-7: 2-Wire/4-Wire Mode Selection .....................................11
2.4 Configuration Switch Set “S3” .............................................................11
Switches S3-1 & S3-2: Input Impedance ..........................................11
Switch S3-4: Mode Selection ............................................................12
Switch S3-5: RS-232 Initiation of Local Loopback Test ....................12
Switch S3-6: RS-232 Initiation of Remote Loopback Test ................13
Switches S3-7 and S3-8: Anti-stream Control ..................................13
3. Installation .......................................................................................................13
3.1 Two-wire Installation ...........................................................................14
Two-Wire Cable Connection Via RJ-45 ............................................14
Two-Wire Cable Connection Via Terminal Blocks ............................15
3.2 Four-wire Installation ..........................................................................16
Four-Wire Cable Connection Via RJ-45 ...........................................16
Four-Wire Cable Connection Via Terminal Blocks ...........................17
3.3 Four-wire, Multipoint Installation .........................................................18
Multipoint Twisted Pair Connection ..................................................19
3.4 RS-232 Connection ............................................................................20
4. Operation ........................................................................................................21
4.1 LED Status Monitors ...........................................................................21
The “TD” and “RD” Indicators ...........................................................21
The “RTS” and “CD” Indicators .........................................................21
The “Test” Indicator ..........................................................................21
The “Error” Indicators ........................................................................22
4.2 Anti-Streaming Error Indicator ............................................................23
4.3 Power-up ............................................................................................23