HP 8901B Operation And Calibration Manual page 49

__
Model
8901B
Installation
SHOULD BE GROUNDED
NEAR TERMINATION
OF OTHER WIRE OF
TWISTED PAIR
SIGNAL GROUND
P/O TWISTED PAIR WITH
11
P/O TWISTED PAIR WITH 10
P/O TWISTED PAIR WITH 9
P/O TWISTED PAIR WITH 8
P/O TWISTEO PAIR WITH
7
P/O TWISTED PAIR WITH 6
REN
010 8
DIO
7
DIO 6
DIO 5
ISOMETRIC
-
THREAD M3.5 x
0.6
SHIELD -CONNECT TO
ATN EARTH
SRO GROUND
IFC
NDAC
NRFD
DAV
EO1
Dl0 4
DIO 3
DIO 2
010 1
24-PIN MICRO-RIBBON
(SERIES 57) CONNECTOR
The Hewlett-Packard interface Bus logic levels are TTL compatible, that is, the true (1) state is 0.0 Vdc to +0.4 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; Amphenol 57-30240
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 10833D, 0.5 meters (1.6
ft.)
Cabling Restrictions
1. A Hewlett-Packard interface Bus system may contain no more than 2 meters (6.6
ft.)
of connecting cable per
instrument.
Figure 2-3. Hewlett-Packard Interface Bus Connection
rev. 15MAY89
2-7