This section contains instructions for operating the Express Orderwire Multi-
direction Unit, including starting, operating, and stopping procedures. A functional
description of the controls and indicators is also given.
3.2 CONTROLS AND INDICATORS
The controls and indicators associated with the operation of the Panel are as
Controls the application of -48 Vdc power to the unit.
b. Power lamp
Illuminates to indicate that -48 Vdc power is applied to the unit.
Provides overload protection for the power supply of the unit.
To place the unit in operation, set the POWER switch to the ON position.
The power lamp illuminates to indicate application of -48 Vdc.
The unit is an automatic device; therefore, no operating procedures are
To stop the unit, set the POWER switch to the OFF position. The power
lamp extinguishes to indicate the removal of -48 Vdc.