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The Network Access indicator is useful for confirming that a specific drive
channel is being accessed correctly by the primary network, while the Drive
Link indicator provides an easy method of determining that the interface and
drive are successfully exchanging data, independent of primary network
activity.
9.3 MMI Port Indicators
The MMI port RJ45 connector also contains two integrated green LEDs.
Figure 8 indicates the functions of these LEDs.
Reserved
Currently reserved
Active Sockets Indicator
Blinks in 0.25s-long bursts
separated by 2s of OFF time:
number of consecutive blinks
indicates number of open TCP/IP
sockets (client connections)
Figure 8: MMI Port Indicators
The Active Sockets indicator is helpful in determining how many TCP/IP
sockets are currently allocated to Ethernet clients (masters). As indicated in
Figure 8, the number of currently-allocated sockets can be determined by
counting the number of concurrent short blinks. Each stream of short blinks is
terminated by 2s of continuous off time, after which the next stream of short
blinks begins.