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Figure 5: Example of the DiamondBack/Adder 161
Fiber Optic Cable Runs
The optical output from the TX is generated by an infrared laser diode that is
coupled to the fiber. User connections are made at a bulkhead ST type connector
on the rear panel; refer to Figure 2 on page 3. Operation is intended for use on
single mode fiber.
The input at the RX uses a InGaAs pin diode and amplifier to convert the optical
signal back into an electrical signal.
Never look directly into the end of a connected optical fiber while any component
is operating; eye damage is possible.
DiamondBack2 launches the signals into 8.3 micron diameter core single mode
fibers. Assembled cables and connectors are available from Telecast Fiber
Systems, Inc.
The Transmitter’s optical outputs Fiber 1 and Fiber 2 have the following
characteristics:
• Fully redundant
• Have independent power drivers
• Both remain active in the absence of a power or device failure
