Chapter 12: WAN Cards
WAN LEDs
166 SmartBits System Reference
WAN LEDs
All WAN cards have three card LEDs (located near the top of the card) and are explained
in Card LEDs below, and in Table 12-3 on page 167.
The WN-3441A and WN-3442A cards also have individual port LEDs (two on each RJ-
48C interface connector) and are explained in “Port LEDs for the WN-3441A and WN-
3442A Cards” on page 169.
Note: In the following tables, the term port up denotes the following:
– The port is enabled — and —
– The physical link is connected or in local loopback — and —
– Neither a Remote Alarm Indicator (RAI) nor Out of Frame (OOF) alarm has
been detected.
The term port down denotes the reverse of any of the above conditions:
– The port is disabled — or —
– The physical link is disconnected and not in local loopback — or —
– Either a Remote Alarm Indicator (RAI) or Out of Frame (OOF) alarm has
been detected.
Card LEDs
Table 12-3 on page 167 summarizes the functions of card LEDs. These three LEDs
indicate status and events for the card as a whole. These are designated TX/INIT, TRIG/
LINK, and RX/ERR. The TX, RX, and TRIG LEDs flash green when any port on the card
detects one of the following events: frame transmission, frame received, or a trigger.
The LINK LED indicates the status of all four ports. If all ports are linked correctly, this
LED is off. If any of the four ports is not linked correctly, the LED displays Red. To
determine port-specific status and events, check the individual port LEDs (see Table 12-3
on page 167).
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