VISTEK V1679 single-mode fibre
datatransceiver
2Issue 1
Contents
1. GENERAL..................................................................................................................5
2. GENERAL PURPOSE OUTPUTS.............................................................................6
2.1 Description.......................................................................................................6
2.2 Configuration...................................................................................................6
2.3 Output Specification........................................................................................7
3. GENERAL PURPOSE INPUTS.................................................................................8
3.1 Description.......................................................................................................8
3.2 Configuration...................................................................................................8
3.3 Examples for Driving V1679 GPI Inputs.......................................................10
3.3.1 Push Button or RelayDriven Switch....................................................10
3.3.2 N-Channel MOSFET Switch................................................................11
3.3.3 Open Collector Output........................................................................12
3.3.4 CMOS Output......................................................................................13
3.4 Input Specification.........................................................................................14
4. SERIALCOMMUNICATION PORTS.......................................................................15
4.1 Description.....................................................................................................15
4.2 Configuration Options...................................................................................16
4.2.1 RS-232/422 Mode Selection Jumper..................................................17
4.2.2 Slew-rateSelection Jumper (Slow/Fast).............................................17
4.2.3 Line Termination Jumper (RS-422 Only).............................................17
4.3 RS-232/422 Examples....................................................................................18
5. REAR PANEL CONNECTIONS...............................................................................21
5.1 Silkscreen Legend and Markings.................................................................21
5.2 ElectricalInterfaces.......................................................................................22
5.3 V1679 Breakout Adapter................................................................................23
5.3.1 Serial Communications Ports..............................................................23
5.3.2 GPIO Terminals..................................................................................24
5.3.3 Power SupplyOutput..........................................................................24
5.4 OpticalInterfaces...........................................................................................24
5.4.1 Optical Input........................................................................................24
5.4.2 Optical Output.....................................................................................25
5.4.3 Encoding Scheme and Data Rate.......................................................25
6. FRONT PANEL LED INDICATORS.........................................................................26
6.1.1 RemoteControl Access and Power Indicators....................................26
6.1.2 Carrier / Lock /Laser FailIndicators...................................................27
6.1.3 Serial Comms ActivityIndicators.........................................................27
