For connection to most host systems, Xon/Xoff handshaking reduces the number of wires necessary in the interface cable. For interfacing RS-422 devices, the Xon/Xoff handshake is the only appropriate method.
2.3 Sample Installations
In this section, four typical installations are reviewed, CRT terminal, PC, minicomputer, and mainframe computer. Interface cable listings for similar installations are listed in Appendix E.
CRT Connection
A typical application for a CRT-based system is generating and printing labels that are stored on an optional Flash Module. First, connect the Printer to the CRT with the cable number 556000 and turn on switch 7 at the rear of the Printer. Next, plug the Module into the slot on the side of the Printer to store label formats on the Module. For a detailed explanation of the operation of this configuration, refer to Chapter 3, ‘Creating Labels Using Internal Batch Software’.
PC Connection
A cable should be selected (refer to Table 2-1), and connected to a PC via a RS-232C port. It is recommended that you use a RS- 232C port to allow for two-way communication with the Printer. The RS-232C communications port can be connected with one of two possible configurations: a 9 pin cable (part number 556001) or a 25 pin cable (part number 556002).
Note: DB25S (socket/female) connectors on most PCs are normally parallel ports; DB25P and DB9P (pin/male) are normally serial ports.
20 | DMX 400/430 Operator’s Manual |