Specifications

Excalibur Multirate DAP Installation and Operation
3-18
Table 3-10. Jumper Settings
Jumper
Setting
Function Selected
JS1 3 to 1 Pin 19 = Secondary channel RTS
(input). Use for Clear Secondary
Channel.
3 to 2 Pin 19 = Digital Power Failure output.
Use at central site unit.
JS2 3 to 1 Pin 23 = Signal Indicator (output).
Active when the DDS line is
available. Inactive when the DDS line
is lost.
3 to 2 Pin 23 = No function (input).
JS3 In Pin 14 = Secondary channel transmit
data is active (input). Typically used
when the DAP is connected to a CMS
system.
Out Pin 14 = Secondary channel transmit
data is isolated Typically used to
isolate the secondary channel signals
from the DTE.
JS4 In Pin 16 = Secondary channel receive
data is active (output). Typically used
when the DAP is connected to a CMS
system.
Out Pin 16 = Secondary channel receive
data is isolated. Typically used to
isolate the secondary channel signals
from the DTE.
JS5
3 to 1 Pin 21 = Signal Quality (output).
3 to 2 Pin 21 = Remote Digital Loop (input).
JS6
3 to 1 Pin 12 = Digital Power Failure input.
3 to 2 Pin 12 = Secondary Channel DCD
(output).