3Com V3000 ANALOG, Installation Manual

Page: 46 / 252

46 C
HAPTER
1: I
NTRODUCTION
Each
3C10164C-ST
card has the following lights and connectors:
■
BRI Port Status Lights — Each BRI port has these status lights:
■
D — On when this signaling channel is active.
■
B1 — On when this data channel is active (a call is in progress).
■
B2 — On when this data channel is active (a call is in progress).
During the Auto Discover process:
■
Each status light turns amber briefly, starting with span 1 (channels
D, B1, and B2) and continuing through span 4 (channels D, B1, and
B2). After approximately 30 seconds, the B1 status light on all four
spans turns green for approximately 1 minute. All lights turn off
when the Auto Discover process is complete.
After you connect an ISDN BRI span to a port:
■
The D light turns green if the span is operating properly and turns
amber if there is a problem. For a span that is operating properly,
when the NBX system initiates or receives a call on a B channel, the
corresponding light initially turns amber. When the call is
answered, the light turns green.
■
Console — This DB-9 connector provides an RS-232 (DCE) TTY
terminal connection for maintenance access.
Each
3C10164D-ST
( Figure 13 ) card has the following lights and
connectors:
■
BRI Port Status Lights
■
Fast steady Blink — Waiting for download
■
Solid On — Downloaded, burning the flash memory
CAUTION: Do not disconnect power while the flash memory is being
updated. Doing so may corrupt the flash memory and the card might
have to be replaced.
■
Slow Non-Symmetric Flash Pattern — Downloaded, waiting to
bind
■
Off for 9-10 seconds, on briefly — Only the D the channel is up
■
On for 9-10 seconds, off briefly — On call (one or both B channels)
■
Amber — D channel is down
■
S1, S2 Status Lights — Used by support technicians for advanced
troubleshooting.