HP 436A Operating And Service Manual page 21

Model 436A
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SIGNAL GROUND
SH I ELD- CONNECT TO
PIO TWISTED PAIR WITH 11
ATN
EARTH
GROUND
PIO TWISTED PAIR WITH 10
SRQ
SHOULD BE GROUNDED PIO TWISTED PAIR WITH 9
IFC
NEAR TERMINATION
PIO TWISTED PAIR WITH 8
NDAC
OF OTHER WI RE OF
TWISTED PAIR
PIO TWISTED PAIR WITH 7
NRFD
PIO TWISTED PAIR WITH 6
DAV
REN
EOl
Dl08
Dl04
Dl07
Dl03
0106
0102
Dl05 0101
TYPE 57 MICRORIBBON
CONNECTOR
Logic Levels
The Hewlett-Packard Interface Bus logic levels are TTL compatible,
i.e., the true (1) state is 0.0 Vdc to 0.4 Vdc and the false (0) state is
+2.5 Vdc to +5.0 Vdc.
Programming and Output Data Format
Refer to Section III, Operation.
Mating Connector
HP 1251-0293; Amphenol 57-30240.
Mating Cables Available
HP 10631A, 1.0 metre (3 ft.); HP 10631B, 2.0 metres (6 ft.)
HP 10631C, 4.0 metres (12 ft.); HP 10631D, 0.5 metre (1.5 ft.)
Cabling Restrictions
1. A Hewlett-Packard Interface Bus System may contain no more
than 1.8 metres ( 6 ft.) of connecting cable per instrument.
2. The maximum accumulative length of connecting cable for any
Hewlett-Packard Interface Bus System is 20.0 metres (65.6 ft.)
Figure 2·3. Hewlett-Packard Interface Bus Connection
Installation
2-5/2-6