GSM1000 Gigabit Converter
12
8 – DIP switches setting
.
Each GSM1000 unit is equipped with an array of 4 DIP switches (front panel) that
facilitate the proper testing and setting of the F/O ports for optimal operation.
The following operations can be implemented on each F/O port:
•
Loop-back enable / disable
•
Link segmentation test: LST ON (Test mode)
•
LST OFF (Link failure notification = Fault Propagation enabled)
Notes: Port 1: F/O port 1000Base-SX/LX (input port) - UNI
Port 2: F/O port 1000Base- LX (output port) - OA
LB (loop-back)
In normal operation, the LB DIP switches are in disable mode (DOWN position)
When it is necessary to perform a loop-back test in the selected port, then the
associated LB DIP switch should be enabled (UP position). The appropriate
LB LED will light to indicate that the selected GSM1000 port is in loop-back mode.
Local Loop-back operation: incoming received data on the RX port is looped back and
transmitted from the TX port.
Note: before applying Power to the unit, ensure that the LB DIP switches are in
DOWN position (LB disabled).
Note: When the GSM1000/MA CPE devices are present in the network (normally
connected to a MetroStar module: MCM1000T or MCM1000S) and the MA
management is active and operational, the MA LB/LST commands will override
the DIP switches setting.
