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Nortel Networks 1750 Manual Do Utilizador

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Chapter 1 Cables and power 35
Nortel VPN Router Installation — VPN Router 1750 
Single V.35/X.21 WAN interface card LEDs
The following figure shows the LEDs on the single V.35/X.21 WAN interface 
card.
Figure 12   LEDs on the single V.35/X.21 WAN interface card
The following table describes the LEDs on the single V.35/X.21 WAN interface 
card. 
Table 13   LED indicators on the single V.35/X.21 WAN interface card
LED
Indicator
Description
LED 1
Red
No external transmit clock source is available.
LED 2
Green
The signals CDC and DSR are on between the DSU 
and the adapter. LED 2 detects receive link status.
LED 3
Green
The power to the adapter is on and the onboard 
microcode is loaded.
LED 4
Green
A cable is detected.
LED 4, Green
LED 3, Green
LED 1, Red
LED 2, Green