User`s manual

2000591-001 Command Summary •• 63
Command Summary, Continued
The ANCB clock is not battery backed up. This means the date must be
set every time the ANCB is reset or the power is removed. If the ANCB is
connected to a network with a timeserver the ANCB can be configured to
request the time at power up and every 24 hours thereafter. Refer to the
config timeserver ip command.
A MAXUM analyzer or NAU can be configured to provide the time server
function.
This command displays the ANG_DN link state table. The link state table
indicates, for each link, whether or not the link is currently “up,” “down,”
or undergoing link validation (“check”). For DataNET links, the table also
gives the device to which the link connects. Devices are identified by IP
address. For example:
local> display links
Port: Medium: Status: Connected to:
1 ADH Copper Connected ADH Channel B
2 DN Copper Connected DN Channel B
Ethernet Offline
This command may be used to override default values for several pa-
rameters related to the DataNET protocol. Specific forms of the com-
mand are:
dn setuptime
Displays the current “setup time” value, in
microseconds. This is the time that the
ANCB_DN board will transmit a “pream-
ble” pattern on a DataNET link before
starting the actual data frame. The pre-
amble allows time for the receiver circuitry
at the far end of the link to adjust to the
incoming signal’s amplitude, phase, and
frequency. The default setup time is 3.5
milliseconds.
dn setuptime time
Sets the DataNET setup time to the value
given, in microseconds. The new setup
time value is saved in non-volatile mem-
ory.
Time is entered in microseconds. Exam-
ple: 3.5 milliseconds is entered as 35000.
Note
display links
“dn” Command