8
In a one-fiber system, the two Adder 882 units are not identical and are
configured before shipment. They must be used as a pair. The units are
connected by a single fiber that is wavelength division multiplexed (WDM). One
unit transmits from the Tx ST connector at a wavelength of 1300 nm and also
receives at 1550 nm on the same connector. The other unit transmits from the Tx
ST connector at 1550 nm and similarly receives at 1300 nm on the same
connector.
Figure 3 illustrates available optical configurations of the ADDER 882i.
Figure 2: Single Fiber operation
Figure 3: Other optical options