Keysight E1458A 96-Channel Digital I/O Module Service Guide
17
Environment
General Information
Environment
The recommended operating altitude for the module is 2000 m (6000 ft) or less.
The recommended operating environment for the module is:
Keysight E1458A Description
The Keysight E1458A 96-Channel Digital I/O Module (referred to as the Digital
I/O module) is a twelve port digital input/output module intended for data
communication and digital control in electronic environments. The Digital I/O
module is compatible with TTL levels (0-5V) and CMOS levels (using an external
pull-up). The Digital I/O module complies with VXIbus (VMEbus Extensions for
Instrumentation) definitions for the P1 and P2 bus connectors on C-sized
modules. A jumper on the module sets the VXIbus interrupt level.
Each port is identical and consists of 7 control lines and 8 data lines. There are 8
registers for control and status on each port. In addition, the module has
Manufacturer ID, Device ID, Module Status/Control and Interrupt Status
registers. Figure 1-1 shows the locations of the ports and a simplified diagram of
a single port. Of the seven control lines, three (I/O, CTL, and FLG) are used with
SCPI (Standard Commands for Programmable Instrumentation) commands,
three (RES, STS, and PIR) are controlled through register access and one, UTS,
can be used to force all data lines into a three-state mode.
Each port has two hardware configuration switches. One switch allows you to
connect the flag lines together for multiport data transmission. Another switch
selects either open collector or pull-up to TTL compatible levels on the data
lines.
SCPI commands provided for the Digital I/O allow operation in 8-bit “BYTE”
format, 16-bit “WORD” format (using 2 ports), 32-bit “LWORd” format (using 4
ports), 64-bit “LW64” format (using 8 ports), and 96-bit “LW96” format (using all
ports).
Table 1-1 shows the mapping of bit numbers from the 8-bit ports to the 16-, 32-,
64-, and 96-bit ports. Connections are made through 64-pin header connectors.
Each connector contains connections for three ports as shown in Figure 1-4.
Environment
Temperature
Humidity
Operating
0
o
C to +55
o
C
<65% relative (0
o
C to +40
o
C)
Storage and
Shipment
-40
o
C to +75
o
C
<65% relative (0
o
C to +40
o
C)
Summary of Contents for E1458A
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