2.3.4.1 Connect to the DEC MicroServer
First, attach your terminal as a remote console by performing the following
steps:
1.
Log in to a host system. This system must be on the same Ethernet as the
DEC MicroServer.
2.
Use the commands in Appendix D to create a logical connection between
your terminal and the DEC MicroServer.
When the connection is made, the following prompt appears on your terminal:
>>>
2.3.4.2 Stop the System Software
The loopback tests need exclusive use of the synchronous port(s), so you must
stop the DECnet SNA Gateway for Synchronous Transport software before you
start the tests. Enter the following remote console command:
HALT
Once the DEC MicroServer has been halted, the only way to restore normal
Gateway-ST operations is to load the Gateway. See Section 2.3.4.7 for
information about using the console BOOT command.
2.3.4.3 DEC MicroServer I/O Port Testing
Test the 50-way port on the DEC MicroServer by doing the following:
1.
Remove the adapter cable from the 50-way port.
2.
Attach the 50-way loopback connector (Type H3199).
3.
Enter the following command at the console:
TEST DATA_LOOPBACK/CH
n
Replace n with the number of the port (0, 1, 2, or 3).
If the test fails, go to Section 2.3.5. If this test succeeds, reconnect the adapter
cable, and go on to the next section.
Caution
When removing the adapter cable, attaching the loopback connector,
or reattaching the adapter cable, be careful not to press the DUMP
switch.
Using Loopback Tests 2–13
