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2-4 Site Planning and Requirements
CABLE RESTRICTIONS
Cable restrictions for the plotter are determined by the type of interface being used. Recom-
mendations for each interface are supplied in the following paragraphs.
RS-232-C INTERFACE
The use of short cables (each less than 15 metres or 50 feet) is recommended for the
RS-232-C Interface. Longer cables are permissible, provided the load capacitance does not
exceed 2500 picofarads.
CENTRONICS INTERFACE
The use of short cables (each less than 2 metres or 6.6 feet) is recommended for the Centron-
ics Interface.
HP-IB INTERFACE
The HP-IB (Hewlett-Packard Interface Bus) allows up to 15 devices to be connected. The
maximum cable length is restricted to 2 metres (6.6 ft.) per device up to a total of 20 metres
(65.8 ft.). The devices may be connected in a star or linear bus network.