CHAPTER 2
2-18 IEN HARDWARE REFERENCE 940043-002
Front Panel
The front panel of the IEN 5000 chassis contains the status indicator nomenclature for each
port. Refer to Chapter 3, Port Processors/Modules for more information about status
display indicators. Figure 2-12 illustrates the front panel of the IEN 5000 chassis.
Figure 2-12 IEN 5000 Front Panel
RTS The Request to Send (RTS) is an LED indicator that indicates the unit is transmitting data to
the standard packet bus.
TXD The Transmit Data (TXD) is an LED indicator that indicates the port is transmitting data on
the high speed bus. Older Z80 port processors do not have high speed bus capability.
This indicates low speed bus activity on the Z80 port processor.
RXD The Receive Data (RXD) is an LED indicator that indicates the unit is receiving data from the
standard packet bus.
RTS
DCD
The Request to Send (RTS) and Data Carrier Detect (DCD) are LED indicator that indicates
a signal from the DCE (modem or printer) to the DTE, indicating it is receiving a carrier
signal from the DCE at the other end of the telephone circuit
STAT The Status (STAT) is a seven-segment LED display that provides a current operational
status.
To Next Page
Loading...