Table of Contents
Advertisement
2-25.
Mode! 5344S
Installation
2-26.
HEWLETT-PACKARD INTERFACE BUS. Interconnection data concerning the rear panel
HP-1B connector is provided in Figure 2-5. This connector is compatible with the HP
10833A/B/C/D cables. (See Table 2-1 for cable descriptions.) The HP-IB system allows
interconnection of up to 15 (including the controller) HP-IB compatible instruments. The HP-IB
cables have identical "piggy-back" connectors on both ends so that several cables can be
connected to a single source without special adapters or switch boxes. System components and
devices may be connected in virtually any configuration desired. There must, of course, be a path
from the calculator (or other controller) to every device operating on the bus. As a practical
matter, avoid stacking more than three or four cables on any one connector. If the stack gets too
large, the force on the stack produces great leverage which can damage the connector
mounting. Be sure each connector is firmly (finger tight) screwed in place to keep it from
working loose during use.
Table 2-1. HP-IB Cable Descriptions
10833A
1 metre (3.3 ft.)
10833B
2 metre (6.6 ft.)
10833C
4 metre (13.2 ft.)
10833D
0.5 metre (1.6 ft.)
The above symbol when located in the upper corner of a page
indicates HP-IB information is contained on that page. This
information may be operation, performance, adjustment, or
service related.
2-27.
CABLE LENGTH RESTRICTIONS. To achieve design performance with the HP-IB, the
proper voltage levels and timing relationships must be maintained. If the system cable is too long
the lines cannot be drive properly, and the system will fail to perform properly. Therefore, when
interconnecting an HP-IB system, it is important to observe the following rules:
a.
The total cable length for the system must be less than or equal to 20 meters (65 feet).
b.
The total cable length for the system must be less than or equal to 2 meters (6.6 feet) times
the total number of devices connected to the bus.
c.
The total number of instruments connected to the bus must not exceed 15.
2-28.
5344A Listen/Talk Address
2-29.
The 5344A contains a rear panel HP-IB instrument address selection switch. There are five
switches designated (A5, A4, A3, A2, A1) which are used to select the address. Instructions for
setting and changing the address are provided in Section III of this manual along with the
programming codes.
2-30.
HP-IB Descriptions
2-31.
A description of the HP-IB is provided in Section III of this manual. A study of this
information is necessary if the user is not familiar with the HP-IB concept. Additional information
concerning the design criteria and operation of the bus is available in IEEE Standard 488-1978,
titled "IEEE Standard Digital Interface for Programmable Instrumentation." See Figure 2-5.
2-7
Advertisement
Table of Contents
