9
Refer to the
Installation
chapter for details on the connection of the DB25 EIA port or the RJ45 EIA port to
serial devices (hosts, modems, or printers).
The optional RS-422 and current loop communications interface is only available for this DB25 EIA port.
Host/Printer Port 1 (RJ45)
This port, labeled “EIA,” located to the right of the “Aux” port, is designed to connect to a host (computer or
modem) or a serial printer and can operate from 110 to 115,200 baud. This port also uses an RS-232-C interface
via an RJ45 female connector and is configured as a DTE device.
Video Port (DB15)
The port labeled “Video” is designed to connect to the VGA monochrome or color monitor. The
interface is a 15-pin, D-shell female connector. The pin assignments for this port are shown below.
Keyboard Ports (Mini-din or RJ11)
There are two keyboard connector ports provided. Only one keyboard should be connected at one time. The PC
101-key and ANSI keyboards will connect to the RJ11 or the mini-din interface, depending on the type of cable
used. The Compact PC 101-key keyboard will connect to the mini-din port.
