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Hardware Installation • • Chapter 2
9
2.3 Serial Number of the Async Concentrator
It is the unique number identifying an Async Concentrator and written on a
sticker which can be found at the left side of the rear panel of each Async
Concentrator.
User has to type in the serial number when setup the driver in the system.
Under DOS, user can use "Auto-Search Serial No." function of the setup
program to detect the serial number(s) of all the existing Async Concentrator(s)
for convenience without typing the serial number(s) one by one.
Under UNIX, "Auto-Search" function is not available at the time of driver
installation due to that the C360 driver is not in the UNIX system at that time.
2.4 LED Indicators
C360 Control Board
The green link LED labeled Lk lights up to indicate that a valid 10BASE-T link
beat is established. It should be ON under normal operating condition. If the
LED remains off after power is applied, check for a proper RJ-45 connection.
Async Concentrator
After powering on the Async Concentrator, red indicator S0 "ON" and S1
"OFF" means normal initialization status of the Async Concentrator. And
green indicator Tx and red indicator Rx will flash periodically and either more
frequently if C360 driver is not started or less frequently if C360 driver is
started.
Indicator Tx and Rx show the status of transmitting and receiving data. If the
indicator Tx is ON, then some data is transmitted from the Async Concentrator.
If the indicator Rx is ON, then some data is received by the Async Concentrator.
On the other hand, if indicators Tx and Rx are all OFF, then no data is
transferring at that time.
As to the signals' status of each serial port, please use "mini tester" to monitor.
2.5 Diagnostics