ADTRAN L768 user manual Front Panel, Indicators

Chapter 1: Understanding HDSL and the Express L768/L1.5

Front Panel

Figure 1-5 shows the front panel of the Express L768/L1.5. The indicators are divided into LAN functions, WAN functions, and Test functions.

Indicators
TX/RX	Flashes when transmitting and receiving data on the
	10BaseT connector.
LI	Link integrity. Illuminates when there is a good
	connection between the Express L768/L1.5 and the
	Hub/NIC card.
LOOP/LOOP1	Flashes when loop 1 (pins 1 and 2 on RJ-45) is not
	in sync. Solid when loop 1 is in sync.
LINK/LOOP2	On Express L768: Illuminates when either PPP or
	Frame Relay has an active connection.
	On Express L1.5: Flashes when loop 2 (pins 4 and
	5 on RJ-45) is not in sync. Solid when loop 2 is in sync.

	TX/RX	LOOP	LINK	PWR
LI
L768
EXPRESS
			TEST	LINE

L768

	TX/RX	LOOP1	LOOP2	PWR
LI
L1.5
EXPRESS
			TEST	LINE

L1.5

Figure 1-5

Express L768/L1.5 Front Panels

10 Express L768/L1.5 User Manual 61202192L1-1