Справочник Пользователя для AT&T System 85

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selectable subrates of 2.4, 4.8, or 9.6 kbps.  When used as a LAD, they can also be
optioned for 19.2 and 64 kbps operation.

The stand-alone units are provided with a WP90131-L2 power pack.  This power pack is plugged
into a 115-volt AC wall receptacle not under the control of a wall switch.  The multiple-mount
housing is provided with a 6-foot power cord that is plugged into a 115-volt AC wall receptacle not
under control of a wall switch.  Each DSU that is to mounted into the multiple-mount housing is
equipped with a WP90131-L1 power pack that is plugged into the power strip on the rear of the
housing.

The 2556A, 2556B, and 2556C DSUs may be located a maximum distance of 50 feet from the
DTE.  The 2596A, 2596B, and 2596C DSUs may be located a maximum distance of 100 feet
from the DTE.

The 2500-Series DSUs and optional components can be ordered using the following PECs:

d

2556A Data Service Unit—2225-56A

d

2596A Data Service Unit—2225-96A

d

2556B Data Service Unit—2225-56B

d

2596B Data Service Unit—2225-96B

d

2556C Data Service Unit—2225-56C

d

2596C Data Service Unit—2225-96C

d

2500-Series Multiple-Mounting Housing—22253

d

2600-Series Multiple-Mounting Housing—22263

The following document contains additional information relating to the 2500-Series Data Service
Unit:

d

2500-Series Data Service Unit User’s Manual, 999-100-188