CONNECTORS
HP-IB connector allows the swept CW generator to be connected
to any other instrument or device on the interface bus. All HP-IB
instruments can be connected with HP-IB cables and adapters.
These cables are shown in the accompanying illustration. The
adapters are principally extension devices for instruments that have
recessed or crowded HP-IB connectors.
HP-IB
SHl
AH1
Tz:
L4
LEO
SRl
RLl
PPO
DC1
OTl
COl-3,
28
El
-0‘
t:
::
t:
;-1
.
.
::
00
.
.
.
.
0
Figure C-2. HP-IB Connector and Cable
HP-IB Interface Cables Available
HP-IB Cable Lengths
Part Numbers
HP 10833A
lm (3.3 ft)
HP 10833B 2m (6.6 ft)
HP
10833C
4m (13.2 ft)
HP 10833D 0.5 m (1.6 ft)
As many as 14 HP-IB instruments can be connected to the swept
CW generator (15 total instruments in the system). The cables
can be interconnected in a “star” pattern (one central instrument,
with the HP-IB cables emanating from that instrument like spokes
on a wheel), or in a linear pattern (like boxcars on a train), or any
combination pattern. There are certain restrictions:
n Each instrument must have a unique HP-IB address, ranging from
0 to 30 (decimal). Refer to 8360 Adrs for information on setting
the swept CW generator’s HP-IB address.
n In a two-instrument system that uses just one HP-IB cable, the
cable length must not exceed 4 meters (13 ft).
n When more than two instruments are connected on the bus, the
cable length to each instrument must not exceed 2 meters (6.5 ft)
per unit.
n The total cable length between all units must not exceed 20 meters
(65 ft).
Hewlett-Packard manufactures HP-IB extender instruments
(HP models 372OlA,
37204A/B)
that overcome the range limitations
imposed by the cabling rules. These extenders allow twin-pair cable
Operating and Programming Reference C-7
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