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1-10
C
1: O
HAPTER
VERVIEW
Parallel Printer Port
The printer interface port connects the server to parallel printers with
Centronics printer interfaces. For information on cabling the server to the
printer, refer to Chapter 2, "Installation."
The cable between the server and the printer should not be more than 12 feet
long, so you must locate your printer physically close to the server.
The printer connector is a female DB-25 equipped with jack posts. For wiring
information, refer to Appendix A, "Pin Assignments.
16-Port
A 16-port asynchronous module consists of a board and a connector panel
Asynchronous
containing two horizontally mounted 50-pin female RJ-21 (Telco) connectors
Modules
that support RS-232/RS-423 signals. Each serial connector contains 8 ports, for
a total of 16 ports per module, or 48 ports for a com- munications server with
the full complement of three modules. The ports are configured as DCE for
attachment to DTE devices, such as terminals. The connectors adhere to the
MOD-TAP USOC 6 wiring standard.
Figure 1-5 shows the 16-port asynchronous module components.
Connector for
Board
auxilliary processor
board
Serial
connectors
Figure 1-5 16-Port Asynchronous Module
Figure 1-5 also shows a connector mounted directly on the board. This con-
nector mates with one of three connectors on the auxiliary processor board.
Each module allows you to attach up to 16 hosts, terminals, modems, or other
asynchronous serial equipment. For instructions on installing and cabling
modules, refer to "Installing 16-Port Asynchronous Modules".
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