Chapter 1 overview, Chapter 1 overview -1, Figure 1. ucs 1001 chassis -1 – CANOGA PERKINS UCS 1001 Universal Chassis System User Manual
Page 7: Table 1. front panel leds -1

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Universal Chassis System
UCS 1001 User Manual
1-1
Chapter 1
Overview
The Model 1001 Universal Chassis System (UCS) Chassis houses and supplies power to Canoga
Perkins modules that are 5U high. Although the chassis is not managed, it supports up to two
5U-high modules, such as fiber optic modems, multiplexers, or media converters. The modules can
either be unmanaged or be directly managed. Figure 1 shows the UCS 1001 with two modules.
Figure 1. UCS 1001 Chassis
The UCS 1001 supports one or two AC and/or DC power supplies in the chassis. The power supplies
are installed at the factory and are not field-replaceable. An LED for each power supply lights green
when the power is on. For specifications for the power supplies, see Chapter 3.
The chassis includes alarm input and output terminals on the rear panel. Use the ALM IN terminal to
connect devices that supply alarm information. If the UCS 1001 receives notification of an alarm
condition from another device, either the MAJ or MIN LED on the front panel lights. However, the
alarm condition is not forwarded to any other equipment.
Use the ALM OUT terminal to connect to external devices that can receive alarm information. If an
alarm condition occurs in a module in the chassis, the MAJ or MIN LED on the module lights and
notification is sent to the external device.
The front panel includes one pushbutton, for alarm acknowledgement, and four LEDs: two for major
and minor alarms and two for primary and secondary power. Table 1 shows the LED states and
meanings. To clear a latched Minor or Major alarm, push the ALM ACK button.
Table 1. Front Panel LEDs
LED
State
Definition
PWR PRI/SEC
Off
No power
Green
Power is on
ALARM, MAJ and MIN
Off
Normal
MIN
Amber
Minor alarm
MAJ
Red
Major alarm