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Requesting control
Scenario 1: Idle System
Example: The system is Idle and a user on Node 1 wishes to access a function which is
restricted by Node Control. The user presses the local Telephone/Page Selector switch that
has been correlated with Node 1. Since the system is idle, control is granted automatically.
The LEDs correlated with Node 1 control illuminate steadily everywhere on the network and
Node 1 has control of the system and access to all functions restricted by Node Control.
When the system is idle control is granted on first come first serve basis. Sequence of
operation:
• User presses the switch correlated to the node he is at
o Control is automatically granted
o Green LEDs start blinking to indicate that a node is requesting control
Scenario 2: Non-Idle System
Example: Node 1 has control, as in the previous example, and a user on Node 3 wishes to
access a function which is restricted by Node Control. The user at Node 3 presses the local
Telephone/Page selector switch that has been correlated with Node 3. The LEDs correlated
with Node 3 control begin to blink everywhere on the network, indicating a request for
control from Node 3.
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