User`s manual

DATA CONNECT ENTERPRISE
iii User’s Manual - DSP19.2 Fast Poll Modem
Contents
Chapter 1 Introduction ............................................................................................ 6
Features ......................................................................................................................7
Applications.................................................................................................................8
Chapter 2 Installation .............................................................................................. 9
Unpacking Your Hardware ..........................................................................................9
Additional Items You Need to Complete Your Installation...........................................9
Hardware Overview...................................................................................................10
Front View .................................................................................................................10
Back View..................................................................................................................10
Rack-Mount View ......................................................................................................11
Installation Summary.................................................................................................11
Configuring the Modem.............................................................................................12
Setting the DIP Switches...........................................................................................14
S1-1, S1-2, S1-3 − Modem Data Rate.................................................................15
S1-4 − Async Character (Fast-Poll Mode Only) ..................................................15
S1-5 − Auto RTS .................................................................................................15
S1-6 − Transmit Carrier Control ..........................................................................15
S1-7 − 2 or 4-Wire Operation ..............................................................................16
S1-8 − Transmitter Impedance............................................................................16
S1-9 − Remote Loopback Enable........................................................................16
S1-10 − Reserved (Test Only).............................................................................17
S2-1 through S2-3 − Transmit Level....................................................................17
S2-4 − Receiver Dynamic Range ........................................................................17
S2-5 and S2-6 − Cable Equalizer (Fast-Poll Mode Only)....................................18
S2-7 − Anti-streaming..........................................................................................18
S2-10 − RTS-CTS Delay (Bell 202 Mode Only) ..................................................18
Configuring the Jumper Blocks .................................................................................19
For Stand-alone Units..........................................................................................19
For Rack-Mount Plug-in Modules........................................................................19
Connecting to a Transmission Line...........................................................................19
Connecting to a Voltage Source................................................................................21
Connecting to an RS-232 Device..............................................................................22
Connecting to an RS-485 Device..............................................................................22
LEDs..........................................................................................................................23
Loopback Control Switch...........................................................................................23