watch-clock
The watch-clock test reads a register in the NVRAM/TOD (Non-Volatile RAM/Time
of Day) chip on the MLB and displays the result as a seconds counter. The counter
should count from 0 to 59 repeatedly until you interrupt it by pressing any key on
the keyboard. See the example below.
ok watch-clock
Watching the ’seconds’ register of the real time clock chip.
It should be ’ticking’ once a second.
Type any key to stop
41
watch-net, watch-aui, watch-tpe, and watch-net-all
These tests monitor broadcast Ethernet packets on the Ethernet cable(s) connected to
the system. Good packets received by the system are indicated by a period (.)
displayed on the screen. Errors are indicated with an X and the error description. See
the following example:
ok watch-net
Internal loopback test -- succeeded.
External loopback test -- Auto-selecting Ethernet cable I/F
Trying AUI
Received packet on AUI
Select cable - AUI
succeeded.
Looking for Ethernet packets.
’.’ is a good packet. "X" is a bad packet.
Type any key to stop.
.........................................................................................................
The SPARCstation 10 system has two types of on-board Ethernet interfaces, 10BaseT
(also called twisted-pair Ethernet or TPE) and 10Base5 (also called thick Ethernet or
AUI). Only one on-board interface may be connected at a time. The system can
automatically select which interface is connected and active.
The AUI port is first tested by transmitting packets and checking for No Carrier or
response packets. If the AUI test fails, the TPE port is then tested.
Typing watch-net causes this automatic selection to take place. You may see these
messages:
ok watch-net
Internal loopback test -- succeeded.
External loopback test -- Auto-selecting Ethernet cable I/F
Trying AUI
AUI Carrier Loss
Trying TPE
Received packet on TPE
Select cable - TPE
18 SPARCstation 10 Service Manual ♦ Revision A, July 1993
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