INTRODUCTION
1 - 4
I-E96-217A
®
Status Indication
The front panel LEDs provide a visual indication of the module
status to aid in system test and diagnosis. The SPM performs
self tests during initialization or reset. An on-board machine
fault timer provides module security and also checks the self
test results. Its output determines the module status LED
state.
A group of four status LEDs indicate the current on-line test
being run and its result. They also indicate the current com-
puter command and SPM reply sequence.
On-Board Tests
In addition to the on-line self tests run during initialization or
reset, SPM tests can be run to check the SPM to computer or
modem connections, and module bus communication. These
tests are selected by positioning the dipswitches mounted on
the PCB; a diagnostic terminal is required.
Minor Maintenance
Other than routine maintenance as defined in
, the
SPM does not have any special maintenance requirements. An
SPM module can be removed or installed without powering the
system down.
INSTRUCTION CONTENT
This manual consists of eight sections:
Is an overview of the SPM: Features, description and specifica-
tions.
Explains the module operation and circuitry.
Describes precautions to observe when handling modules, and
setup procedures required before module operation. This sec-
tion discusses switch and jumper settings, and installation
procedures.
Explains the front panel indicator, and start-up of the slave
module.
Describes the error indications and corrective actions to take.
Has a maintenance schedule for the module and other INFI 90
assemblies.
Details the procedures to replace an SPM.
Provides replacement part ordering information. It explains
other areas of support that Bailey Controls provides.