Express 4110 wan indicators, Express 4110 test indicators, Express 4120 lan indicators – ADTRAN Express 4120 User Manual

Page 45: Express 4120 wan indicators, Express 4120 test indicators, Figure 1-12. express 4120 leds -15

Chapter 1. Understanding ISDN and the Express 4110/4120

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Express 4110/4120 User Manual

1-15

Express 4110 WAN Indicators

PWR

Flashes when the link is inactive; solid when the link is active.

Phone 1/2 Flashes green when the link is being negotiated; off when the link is

active. After the link is active, 1 flashes green when a call on POTS line

1 is in progress; solid green when a call is connected.

Express 4110 Test Indicators

Phone 1/2 A slow amber flash indicates test in progress; a fast amber flash indi-

cates test has failed.

Figure 1-12. Express 4120 LEDs

Express 4120 LAN Indicators

1, 2, 3, 4

Link integrity. Illuminates when there is a good connection between

the Express 4120 and a NIC card.

TX/RX

Flashes green when transmitting data onto the 10BaseT

connector.

Flashes yellow when receiving data from the 10BaseT