Clear-Com Eclipse-Omega - Manual (Page 53)

Clear-Com
Eclipse Omega Instruction Manual 3 - 7
primary connection is the upper set of indicators but on the
rear panel it is the lower connector. Similarly the secondary
connection is the lower set of indicators on the front panel
but the upper connector on the rear panel. Care should be
taken when connecting or disconnecting the cables to
ensure that they are connected correctly and not reversed.
Note: Normally a protective plug is fitted to the fiber connector
sockets to protect them from damage or the entry of foreign
materials. These should only be removed in order to fit the
fiber optic cable and replaced if the cable is unplugged.
CONFIGURING A FIBER OPTIC CONNEC-
TION
There are a number of ways that optical connections can be made
between systems depending on the level of redundancy required.
When a break occurs in the fiber ring, a solid red status light will be
shown at the fiber card downstream from the break and the link status
LEDs may show amber. Other fiber cards will intermittently show red,
as the ring attempts to recover. If the system layout is displayed by
ECS the faulty links are shown in red.
In order to diagnose faults or switch between primary and secondary
rings or between primary and backup fiber linking cards the My
Systems in ECS must be used. Ensure that the current configuration
is open and click on ‘Live Status’ in the My Systems toolbar to display
the current system state.
This will allow the operator to intervene to alter the system
configuration as required. For details of ECS please refer to the ECS
instruction manual (part number 810299).
SIMPLEX FIBER CABLING
Single Card Set Redundancy
In this case each Matrix Frame contains one fiber-optic Linking card
set . This is shown as in Figure 3-4. This approach still affords fiber
connection redundancy since each rear card houses two fiber-optic
transceivers.
In the absence of an Uninterrupted Power Supply (UPS) this
configuration will not protect against loss of the node or Matrix Frame
itself.