Lucent Technologies 555-661-140 manual Installing Direct Station Selectors, Considerations

MERLIN LEGEND Communications System Release 6.1	Issue 1
Installation 555-661-140	August 1998
Installing Telephones and Adjuncts	Page 3-43
Installing Direct Station Selectors

Installing Direct Station Selectors

The Direct Station Selector (DSS) is an optional piece of telephone equipment. You can connect up to two DSSs to an MLX-28D or MLX-20L telephone that is programmed as an operator console.

Considerations

Review the following items before you begin the installation procedure.

■Connect the DSSs before you assemble the MLX telephones.

■Auxiliary power is required under the following circumstances:

—An MLX telephone with an MFM and two DSSs requires a 406743419 power unit.

—An MLX telephone without an MFM, but with two DSSs, requires a 406943837 power unit, 400B adapter, and the D6AP cord provided with the MFM.

—An MLX telephone with one DSS and an MFM requires a 406943837 power unit, 400B adapter, and the D6AP cord provided with the MFM.

—If one carrier has three or more MLX telephones, each with a DSS attached, use a 406943837 power unit, 400B adapter, and D6AP cord for each MLX telephone and DSS after the first two.

■The total length of cords between the KS22911-L2 or 406743419 power supply and the MLX telephone must not be more than 50 ft. (15 m).

■Do not replace the 2-ft. (61-cm) D8AC cord (packaged with the DSS) with a longer cord. Improper operation may result.

■Connect each KS22911-L2 power supply to an AC outlet that is not controlled by a wall switch.