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50 Chapter 2 Cabling the VPN Router and turning the power on
NN46110-318 02.01
Single V.35/X.21 WAN interface card LEDs
Figure 18 shows the LEDs on the single V.35/X.21 WAN interface card.
Figure 18 LEDs on the single V.35/X.21 WAN interface card
Table 14 describes the LEDs on the single V.35/X.21 WAN interface card.
Table 14 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 Power to the adapter is on and the onboard
microcode is loaded.
LED 4 Green Cable is detected.
LED 4, Green LED 3, Green
LED 1, Red LED 2, Green