Cable Restrictions; Rs-232-C Interface; Centronics Interface; Hp-Ib Interface - HP 650C User Manual

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.
2-4 Site Planning and Requirements