Installation
Model
8904A
SHOULD
BE
GROUNDED
NEAR
TERMINATION
OF
OTHER
WIRE
OF
TWISTED
PAIR
P/O
WSTEO
PAIR
WITH
11
P/O
TWISTED
PAIR
WITH
10
P/O
TWISTED
PAIR
WITH
9
P/O
TWISTED
PAIR
WITH
8
P/O
TWISTED
PAIR
WITH
7
P/O
TWISTED
PAIR
WITH
6
REN
DIO
8
Dl0
7
DIO
6
DIO
5
THREAD
M3.5
X
0.6
ISOMETRIC
SHIELD
-CONNECT
TO
ATN
EARTH
SRO
GROUND
IFC
NDAC
NRFD
DAV
EO1
DIO
4
Dl0
3
DIO
2
DIO
1
24-PIN
MICRO-RIBBON
(SERIES
57)
CONNECTOR
Logic Levels
The Hewlett-Packard Interface Bus logic levels are
TTL
compatible, that is, the true (1) state
is
0.0
Vdc to f0.4 Vdc
and the false
(0)
state
is
2.5 Vdc to
+5
Vdc.
Programming and Output Data Format
Refer to Section 3 “Operation”.
Mating Connector
HP 1251-0293; Amphenol57-30240
Mating Cables Available
HP 10833A,
1
meter (3.3
ft.),
HP 108338 2 meters (6.6 ft.)
HP 10833C
4
meters (13.2
ft.),
HP
108330,
0.5
meters (1.6 ft.)
Cabling Restrictions
instrument.
(65.6
ft.).
1.
A Hewlett-Packard Interface Bus system may contain no more than 2 meters (6.6
ft.)
of connecting cable per
2.
The maximum accumlative length of connecting cable for any Hewlett-Packard Interface Bus system
is
20
meter
Figure
2-1.
Hewlett-Packard Interface
Bus
Connections
2-6
rev.
15MA
Y89
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