Grass Valley 2000NET v4.0.0 - Manual (Page 71)

2000NET Instruction Manual 71
Functional Description
LEDs
There are twenty LEDs on the module and support for an LED on the front
cover. DS1, DS2, DS5, and DS6 are for factory use only. The remainder of
the LEDs on the module provide status information to the user.
The power LED is DS20. This LED is driven directly by the 3.3V power rail.
The Ethernet activity LED (ETHR) is driven directly by a 100Base-T trans-
ceiver. It indicates when there is either transmit or receive traffic on the
Ethernet connection.
Note Note: The Ethernet activity LED will indicate receive activity even if the packet
is not addressed to the 2000NET module.
Processor driven LEDs include the following:
• MOD
• FB
• COMM
• PS1
• PS2
• PS3
• PS4
• FAN
• TEMP
• REM OVR
• NM
• FP
These LEDs are all controlled by the processor through a register. The
power-up state of these LEDs is on.
The bi-color LED is a right angle LED that is labeled STATUS. It powers on
in the red state, and can be shown red or green by the processor. It lines up
with a light pipe on the front cover and is visible when the front cover is on
the frame.
RS-232 Serial Port
The RS-232 port is used to initialize the module with critical network
parameters including a static assigned IP Address. The Ethernet MAC
address is stored on a serial EPROM on the frame. (The frame needs both
MAC and IP addresses.)