3Com NBX, Руководство по установке

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NBX Cards and Devices 47
Each Legacy Link Analog Card has the following lights and connectors:
■
Status Lights 1 – 16 — All LEDs flash approximately every 10
seconds .
■
On – Handset off-hook (call in progress)
■
Off – Handset on-hook or no handset connected
■
— Power indicator
■
On – Input power input Ok
■
Off – Input power failed
■
System test
■
Flashing – Card is functioning correctly
■
Off – Card has failed
■
Status
■
On – Seek service assistance
■
Off – Operating normally
■
— The power connector is a 6-pin, circular, Mini-DIN type. Power
from the external 48V D.C. supply is fed into the card via this
connector to power the handsets through the RJ21x 50-way line
connector.
■
On – External power ok
■
Off – External power failed
■
Channels — Channel LEDs are normally off, and all LEDs flash
approximately every 10 seconds
■
On – Handset off-hook (for example, a call in progress)
■
Off – Handset on-hook
■
10101 — The 9-pin D-type straight-through connector is used to
connect to the RS232 Diagnostic Port. This connector allows engineers
to perform tests on the card or to upgrade the card software.
■
RJ21x line connector — The RJ21x 50-way line connector is used to
connect the analog telephones to the card through the existing punch
block and handset wiring. The pins are paired vertically on the
connector, such that line 1 is connected to pins 1 and 26, line 2 is
connected to pins 2 and 27, and so on.