BinTec X4000, User Manual

Page: 64 / 498

64 X4000 User’s Guide
Hardware Description and Installation
3
3.4.2 Expansion Cards
The expansion cards are equipped with LEDs, which respond as described
below if the cables are connected.
BRI Expansion Card X4E-2/3BRI
The BRI expansion card has six LEDs, which are assigned in pairs (red and
green) to each port.
The LEDs indicate the following status messages:
Table 3-2: LED status messages of a BRI expansion card
PRI/G.703 Expansion Card X4E-1/2PRI
The PRI/G.703 expansion card has two LEDs. The top LED is assigned to the
first port (Unit 0) and the bottom LED to the second port (Unit 1).
LED
lights LED
flashes
Meaning
green
LED X – 1 B-channel is used
– X 2 B-channels are used
– – None of the B-channels used
red LED X – D-channel missing or autoconfiguration
failed
– X Layer 1 not stable