Multi-Tech Systems MR9600 - Manual (Page 11)

1 Introduction
CommPlete Communications Server 3
the device cards installed in the CC9600 chassis. When the MR9600 is turned on, the lights go through the
following sequence before they act as status indicators for the device cards.
1. The LEDs on the right side turn red and then turn green when the right SIMM passes its memory
test.
2. The LEDs on the left side turn red and then turn green when the left SIMM passes its memory test.
3. The LEDs stay green for about five seconds while the flash boot code waits for a handshake sequence
on the diagnostic serial port.
4. If none is detected (this is normal unless the firmware is being updated through the diagnostic port)
the main controller code starts running and the LEDs are turned off.
5. The LEDs are turned on and off, one at a time, red and green.
6. All LEDs turn green while the system starts up.
7. After the system has started, the LEDs reflect the status of the device cards. Each LED will be in one
of the following states, depending on the device card.
LED Color Device Card Status
Off Card not installed.
Green Card installed and all devices are communicating with the MR9600.
Red Card installed and none of the devices are communicating with the
MR9600.
Flashing
Red/Green Card installed and one or two devices are not communicating with the
MR9600.
Ethernet Status LEDs
The lower part of the MR9600 front panel contains four indicators that show the status of the MR9600
Controller’s Ethernet port.
LED Indicator Color Indication
LI Link Integrity Yellow On during a good link
CS Collision Sense Red On when there is a collision on the Ethernet port
TX Transmit Green On during Ethernet transmit
RX Receive Green On during Ethernet receive