Nortel Nortel Contivity Extranet Switch 4500, Getting Started

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Cabling the Switch
2-15
Figure 2-6 shows the Single V.35 LEDs. Look at the condition of the LEDs, then
examine the corresponding LED table to better understand the indications.
Figure 2-6. Single V.35 LEDs
Table 2-7. Single V.35 LED Indicators
LED Description
LED1 Power is on to the adapter and the onboard microcode is loaded.
LED2 The signals CDC and DSR are on between the DSU and the
adapter. LED2 detects receive link status.
LED3 Cable is detected.
LED4 No external transmit clock source is available.
LE D 4, R ed
LED 3, G reen
LED 1, Yellow
LED 2, B lue