Specifications

Excalibur Multirate DAP Installation and Operation
3-20
Table 3-11. Switchbank and Switch Settings
Switchbank and Switch Settings
S1 S2 S3 Function Selected
11212
Up Secondary channel control signals pass through
the DTE connector. Typically used when the DAP
is connected to a CMS system.
Down Secondary channel control signals do not pass
through the DTE connector. Typically used to
isolate the secondary channel signals from the
DTE.
Up Up Pin 12 = Secondary Channel DCD; Pin 19 =
Digital Power Failure output. Use at central site
unit.
Down Down Pin 12 = Digital Power Fail input; Pin 19 =
Secondary Channel RTS. Use at remote site unit.
Up Down Pin 12 = Secondary Channel DCD; Pin 19 =
Secondary Channel RTS. Use for Clear
Secondary Channel.
Up Pin 23 = No function (input).
Down Pin 23 = Signal Indicator (output). Active when
the DDS line is available. Inactive when the DDS
line is lost.
Up Pin 21 = Remote Digital Loop (input).
Down Pin 21 = Signal Quality (output).