724-746-5500 | blackbox.com
Page 62
Chapter 6: Operation
SCAN ONE PORT: Move the cursor to SCAN ONE PORT and
press SELECT if you wish to display the advertised capability of a
LAN device. You can connect to any LAN device using a patch
cable or any cable of your choosing. The signal data levels of all
active pairs will also be displayed. When scanning one port, the
connection can be made to a live hub, switch, or PC without
affecting the communication of the other connected devices.
See the following paragraphs in this section for examples of
advertised capability and the Signal Data Level display.
Figure 6-69. Testing Link Pulses from a Gigabit device.
Figure 6-70. Testing Link Pulses from a 100-Mbps device.
The first step in the scanning process reads the link pulses of the
LAN device and displays the advertised capability. LAN devices
broadcast their capability in terms of speed, duplex, and other
features (termed “advertised” capabilities) to other LAN devices.