Bisync Test; Sdlc Test; Troubleshooting; Customer-User Troubleshooting Procedures - HP 3000 Series Installation And Service Manual

Ma
intenance
5-10. BISYNC TEST. The first part of the Universal Synchronous/
Asynchronous Receiver/rransmitter (BISYNC) Test sets up the
communications interface and then transmits and receives 100 data
characters. Error s detected w ill be data overruns, data par ity
errors, and any differences between data transmitted and data
rece ived.
The second part of the BISYNC Test takes the data written in low
memory and transmits it to higher memory via the BISYNC chip and
DMA. At the successful completion of this test, LED indicator 5
is lighted.
5-11. SDLC TEST. The first part of the Universal Synchronous
Receive and Transmit (SDLC) Test sets up the communication inter-
face and then transmits and receives 100 data characters. Errors
detected will be receive errors, receive overruns, and receive
abor ts.
The second part of the SDLC Test takes the data written in low
memory and transmits it to higher memory via the SDLC chip and
DMA. At the successful completion of this test, LED indicator 5
is turned off. If it fails, LED indicator 5 is left on.
5-12. TROUBLESHOOTING
5-13. Customer-User Troubleshooting Procedures
If a malfunction is suspected, the customer user can verify
proper operation of the INP by initiating the self-test program
descr ibed in paragraphs 5-4 through 5-11. (Actually, the self
test is initiated automatically from time to time by the system
software during normal operations. When no malfunction is re-
ported, operations continue without the operator necessarily
being aware that a self test has occurred.)
I
CAUTION
I
Before manually initiating a self
test, be sure that no other compu-
ter operations are in progress
that may be destroyed by the self-
testing process.
There are two ways of manually initiating the self test. One way
is by using the INP Diagnostic/Support Monitor (DSM) to invoke
the self test. This technique requires a simple interactive dia-
logue on a computer terminal between the customer user and DSM~
The customer-user/DSM operations are described in the HP 300l0A /
30020A Intelligent Network Processor Diagnostic Procedures
Manual.
5-5