Power Supplies )-16; Power Supply - Digital Equipment MicroVAX 3600 Operation

Run Mode (in the middle position, indicated by an arrow) is the
normal operating setting.
Loop Back Test Mode (in the bottom position, indicated by a T in a
circle) causes the system to run loopback tests on the console serial
line at power-up. This setting requires special loopback connectors
and is for service use only.
• The light emitting diode (LED) display shows the testing sequence during
power-up.
•
Console terminal connector This modified modular jack (MMJ), labeled
A-1, provides the connection for the console terminal.
1.1.1.3 Power Supplies
Your system has two power supplies. The one on the right is the primary
power supply; the one on the left is the secondary power supply. Figure 1-14
shows the controls and indicators on a power supply.
Figure 1-14: Power Supply
MLO-1215-87
1-16 MicroVAX 3600 UAXserver 3600/3602 Operation