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TC3720
User's Manual
Rev. 1.5
Configuring the Slave units:
1. Enable the SHR dip switch on the front panel by setting it to the down position.
2. Select the fiber ports to form the SHR (set the F1/1X and F2/2X dip switches on the front panel to the
up position).
3. Enable the unit to be a Slave by setting the rear panel's SLVE/MSTR dip switch to the up position.
4. Make sure that at least one SHR ID dip switch is in the down position (Slave SHR ID must be unique.
See Appendix B: SHR ID Setting).
5. To ensure that hardware settings are enabled, unplug the power to the unit, press and hold the reset
button on the rear of the unit, then plug in the power and release the reset button.
6. The ALARM LED will flash and the audible alarm will sound until the SHR is complete. If desired, the
audible alarm can be disabled by setting the DISALM dip switch on the front panel to the down
position.
7. The MSTR/SLVE LED on the front panel should be off.
Repeat steps 1-5 for the remaining slave units.
After completing the configurations for the Master and Slave units:
1. Interconnect the switches in a ring setup using the fiber ports as shown in figure 4. The SHR must be
configured as a ring.
2. Connect the Fiber Ports F1 to F2 of adjacent unit (Rx to Tx and Tx to Rx) as shown in Figure 4.
The following LEDs status should be observed to verify the integrity of the units and all connections after
power up and all connections have been made as in figure 4:
On the Master unit:
"ALARM" LED Off, "MSTR/SLVE" LED solidly lit, "F1/1X" and "F2/2X"
LEDs solidly lit, "100M" and "FULL/COL" LEDs solidly lit, "LINK/ACT" LED
solidly lit or flashing (as optical communication has been established and there
is Ethernet activity), "PWRA" and/or "PRWB" LEDs solidly lit.
On the Slave units:
"MSTR/SLVE" LED Off on all Slave units. All other LEDs should behave
the same way as those on the Master unit.
Note:
See chapter 4 for software configurations and system monitoring.