About the power control panel

The following figure shows a power control panel.

Figure 22. Power control panel
power control panel

Printer 1 has two sets of power controls. One set is for the control unit frame (labeled Control Unit Power). The other set is for the printer attached to the control unit frame (labeled Printer Power).

Printer 2 also has two sets of power controls. One set is for the control unit frame (also labeled Control Unit Power). The other set is for the printer attached to the control unit frame (also labeled Printer Power).

The following switches are provided for each element in the system (the Printer 1 frame, the Printer 2 frame, and the control unit frames):

These switches allow many combinations of local/remote power control and power on/off control. Each power control panel in the system also contains a Unit Emergency switch.

Attention: The Unit Emergency switch lets you turn off all power to the system in the case of an emergency. Do not use Unit Emergency Power Off switch to power off the system unless you have an emergency. Doing so can cause loss of data and hardware problems in the control unit attached to Printer 2.

About the local and remote power controls

You can press the Remote and Local switches on the power control panel to change power control from local to remote at any time. Local power control means that you can turn power on and off using the switches on the power control panel. Remote power control means that you turn power on and off from another source, as shown in the following table.

Table 4. Remote power control
Element Remote Power Controlled From:
Printer 2 Control Unit Power Host System Console
Printer 1 Power Printer 1 Control Unit
Printer 1 Control Unit Power Printer 2 Control Unit
Printer 2 Power Printer 2 Control Unit