ii
PC/Xi, MC/Xi and COM/Xi Intelligent Serial Communications Boards
Board Installation - MC/16i .........................................................................24
Configuring the MC/Xi Board .....................................................................25
Installing COM/Xi Boards...................................................................................27
Before you plug in the board........................................................................27
Jumper Settings .....................................................................................28
Memory Start Address—Jumpers J15, J16 and J17 ......................28
I/O Port Address—Jumpers J2, J3 and J4......................................29
Interrupt Request (IRQ) Line—J5-J14 ..........................................30
EPROM Size Jumpers—J1 and J2.................................................31
Board Installation—COM/Xi .......................................................................32
Connecting Peripherals........................................................................................33
Connecting to a Modem ...............................................................................33
DB-9 Equipped Boards .........................................................................33
DB-25 Equipped Boards .......................................................................34
RJ-45 Equipped Boards.........................................................................35
ALTPIN Modem Wiring (RJ-45 Versions) ...................................36
Connecting to a DTE Device........................................................................37
DB-9 Equipped Boards .........................................................................37
DB-25 Equipped Boards .......................................................................39
Software Handshaking (XON/XOFF) ...........................................39
Hardware Handshaking (Ready/Busy) ..........................................40
RJ-45 Equipped Boards.........................................................................41
Software Handshaking (XON/XOFF) ...........................................41
Hardware Handshaking (Ready/Busy) ..........................................42
RS-232 Cables and Connector Options ...............................................................43
Cables ...........................................................................................................43
Grounding .............................................................................................43
Environment ..........................................................................................43
Capacitance vs. Length of Run .............................................................43
Connector Options........................................................................................44
DB-25 Connectors........................................................................................44
DB-25 Connector Options (Four and Eight-Port Boards) ....................45
Quad and Octa Cable Option (DTE or DCE) ................................45
Quad and Octa Connector Boxes (DTE or DCE) ..........................46
DB-25 Connector Options (PC/16i and MC/16i Boards) .....................47
DB-9 Connectors..........................................................................................48
RJ-45 Connectors .........................................................................................49
Modular Plugs .......................................................................................51
RJ-45 to DB-25 Conversion..................................................................52
