Siemens ADVANCE NETWORK COMMUNICATIONS BOARD/DATANET 20005 User Manual download pdf (Page 48)

Command Descriptions, Continued

display links

This command displays the ANCB/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 status for 172.16.9.239, Port1 - DataNET A, Port2 - DataNET B

Port: Medium: Status: Connected to:

1 Copper Connected 172.016.099.003, 4A

2 Copper Connected 172.016.099.003, 4B

Ethernet Up

dn” Command

This command may be used to override default values for several

parameters related to the DataNET protocol. Specific forms of the

command are:

dn setuptime

Displays the current “setup time” value, in

microseconds. This is the time that the

ANCB_DN board will transmit a

“preamble” pattern on a DataNET link

before starting the actual data frame. The

preamble 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

memory.

Time is entered in microseconds.

Example: 3.5 milliseconds is entered as

3500.

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Siemens ADVANCE NETWORK COMMUNICATIONS BOARD/DATANET 20005 User Manual Page 48