3Com 3C10111C - NBX 100 - Modular Exp Base Installation Manual page 33

network path, the download can take a few minutes. If the DNLD
light remains amber, it can indicate a severely congested network
or a hardware problem with the T1 card.
CALL — Call audio traffic
■
Off — No audio traffic on the T1 link.
Flashing — Audio traffic is present.
CARD — Card Software Status
■
Green — The card has finished downloading software from the
NCP and all software processes have started successfully.
Amber — A problem with one or more of the software processes
running on the card. The card automatically reboots itself if it
detects a problem with any of its software processes.
DSP — Reserved for future use
■
NCP — Network Call Processor
■
Amber — The card is trying to establish contact with an NCP.
Green — The card has established contact with an NCP.
LNK — Ethernet link.
■
Green — The 10/100 Uplink port is connected to a 10Mb or to a
10/100 Mb hub or switch.
Red — The 10/100 Uplink port is connected to a 100 Mb hub or
switch.
Off — There is no connection to the 10/100 Uplink port.
ACT— Ethernet activity.
■
Rapid blink — Data is passing into or out of the T1 card through
the 10/100 Uplink port.
10/100 Uplink — This RJ-45 Ethernet connector connects the T1 card
■
to an external LAN hub or switch. You can use this connector to
isolate T1 traffic. If the T1 Digital Line Card is used in an NBX Gateway
Chassis, you do not need to use this connector because the NBX
Gateway chassis is connected to the LAN.
Console — This DB-9 connector provides an RS-232 (DCE) TTY
■
terminal connection for maintenance access.
CAUTION: This equipment does not operate when the main power fails.
Overview of NBX Cards and Devices 33