Verilink 9000 Series (34-00271) Product Manual - Manual (Page 61)

9000 Front Panel Operation 39
The 12 LED indicators on the left side of the of the 9000 card identify the signals
present on a particular port and how that port is configured. A port is selected by
rolling the port select switch to the appropriate port number. The indicators are
descibed in Table 3-2.
System
Indicators
The four indicators on the right side of the front panel, labeled 1 through 4 are
explained in Table 3-3.
If indicator 3 is on for any unit or more than one line module has indicator 4 on,
contact TXPORT Technical Support before proceeding.
LAN
Indicators
The four LAN indicators on the right side of the front panel are explained in Table 3-4.
Table 3-2 9000 Front Panel Indicators
Signal Description
TxD/RxD These indicators show Transmit Data (TxD) and Receive Data (RxD)
signals of the RS-232 interface. They blink as data is transmitted or
received. For a port using a bit protocol such as X.25 or Frame Relay, they
are on constantly.
TxC /RxC These indicators show Transmit Clock (TxC) and Receive Clock (RxC)
signals of the RS-232 interface. They show that the clocking necessary for
synchronous transmission is being received, if DTE is on, or transmitted, if
DTE is off. This indicator remains off for TDI and asynchronous
operation.
RTS/CTS These indicators show the status of the Request-to-Send (RTS) and Clear
to Send (CTS) signals of the RS-232 interface. These indicators are not
used for TDI operation.
DTR/DSR These indicators show the status of Data Terminal Ready (DTR) and Data
Set Ready (DSR) signals of the RS-232 interface. During operation, both
indicators should be on. One is set by the DTE device and the other by the
DCE device. These indicators are not used for TDI operation.
DCD The shows the status of the carrier detect (DCD) signal of the RS-232
interface.
DTE This indicator shows that this port is configured for DTE operation.
TDI This indicator shows that this port is configured for TDI operation.
V35 This indicator shows that this port is configured for V.35 operation.
Table 3-3 Indicators 1, 2, 3, and 4
Indicator Description
1 This indicator blinks when the 9000 card is operating properly.
2 This indicator blinks when the 9000 card is saving new
firmware or a new configuration into memory.
3 This indicator is on during a firmware error.
4 This indicator shows that this line module module is the master
of the internal communication bus.
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Table 3-4 LAN Indicators
Indicator Description
TxD This indicator blinks when the LAN port is transmitting data.
RxD This indicator blinks when the LAN port is receiving data.
FLT This indicator is on when there is a fault (data collision).
MAC The unit is physically linked to a network.