Step 4: Connect I/O Cabling and Wiring
35
Figure 8
DS3 UNI Module Connection
Once you have connected the module, verify the front-panel indicator sequence
illustrated in Figure 9. The DS3 UNI module features the following front panel
indicators in addition to the common system LEDs:
LOS (RED)
—Powers up in the “off” state and illuminates when a LOS (Loss of
Signal) condition is detected on the incoming DS3. The LOS LED is off if a signal is
present. It reflects the LOS state of the DS3 in real time (no integration of the state
is needed).
A LOS condition sometimes occurs when the DS3 cell encapsulation (PLCP or
Clear) is set incorrectly. For details about setting DS3 cell encapsulation, see
“Configuring the DS3 UNI Module” in Chapter 5.
LOF (RED)
—Powers up in the “off” state and illuminates when a LOF (Loss of
Frame) condition is detected on the incoming DS3. The LOF LED is off when the
signal is in frame. It reflects the LOF state of the DS3 in real time (no integration of
the state is needed).
LOCD (RED)
—Powers up in the “off” state and illuminates when a LOCD (Loss of
Cell Delineation) condition is detected on the incoming DS3 under HEC (Header
Error Control) framing. The LOCD LED is off when delineations are obtained. It
reflects the LOCD state of the DS3 in real time (no integration of the state is
needed).
PathBuilder S600
RX
In
TX Out
75 ohm coax
TX Out
TX In
DS3
CSU or CPE
DS3 Service
Slot 6
Slot 5
Slot 4
0-225 ft or 225-450 ft
Summary of Contents for 3C63100-AC-C - PathBuilder S600...
Page 8: ...INDEX 3COM CORPORATION LIMITED WARRANTY ...
Page 14: ...xiv CHAPTER SUPPLEMENTARY REGULATORY INFORMATION ...
Page 18: ...18 ABOUT THIS GUIDE ...
Page 28: ...28 CHAPTER 1 SYSTEM DESCRIPTION ...
Page 74: ...74 CHAPTER 3 GETTING STARTED ...
Page 230: ...230 INDEX ...