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UEPO Switch
The UEPO (Unit Emergency Power Off) switch is accessible through the external cover. The switch
contains a room emergency power off (EPO) interlock connector and bypass switch, a dual element rack
service amber LED (one element driven per bulk power controller, a service complete button (white) and
start service button (green), an off button and four thermistors for BPC ambient temperature sensing. The
UEPO switch is shown in the following figure.
4
1
2
3
5
6
6
7
8
9
10
11
1
UEPO Front Panel
7
J02 Connector
2
UEPO Side Panel
8
Power Switch
3
UEPO Rear Panel
9
System Fault LED
4
J00 Connector Front BPA (Back)
10
Start Service Button (Green)
5
J01 Connector Rear BPA (Back)
11
Service Complete Button (White)
6
Room EPO Bypass Interlock
The UEPO switch disables 350 V bulk power conversion and isolates all battery power to the battery
compartments, without having to disconnect the heavy power cords under the customer’s raised floor.
At the system level, the UEPO switch is connected to each of the two BPCs through two interface
connectors. The switch can be concurrently replaced by forcing the BPCs into UEPO bypass mode, using
the small slide switches on the face of the BPCs. The switch is mounted in the side pocket area of the
rack and remains stationary when the front cover of the system is opened. The service buttons are used
by service personnel to repair the power subsystem. If the system is off when the service complete button
is pressed, the system will power on. A sliding plastic cover over the red switch prevents it from being
accidentally activated in the customer environment.
Chapter 1. Reference Information
19
Содержание pSeries 670
Страница 1: ...pSeries 670 Service Guide SA38 0615 03 ERserver...
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Страница 3: ...pSeries 670 Service Guide SA38 0615 03 ERserver...
Страница 12: ...x Eserver pSeries 670 Service Guide...
Страница 16: ...xiv Eserver pSeries 670 Service Guide...
Страница 18: ...xvi Eserver pSeries 670 Service Guide...
Страница 256: ...Make sure all the green power good out LEDs of both I O subsystem DCAs are off 236 Eserver pSeries 670 Service Guide...
Страница 324: ...Yes Go to Step 154A 14 on page 302 304 Eserver pSeries 670 Service Guide...
Страница 718: ...698 Eserver pSeries 670 Service Guide...
Страница 828: ...number 8 Exit the menu completely before powering on the system 808 Eserver pSeries 670 Service Guide...
Страница 835: ...MCM Installation Shorts Test Step 3 See L3 Cache Modules on page 819 Chapter 9 Removal and Replacement Procedures 815...
Страница 848: ...L3 Cache Shorts Test Step 4 828 Eserver pSeries 670 Service Guide...
Страница 849: ...L3 Cache Shorts Test Step 5 Chapter 9 Removal and Replacement Procedures 829...
Страница 851: ...L3 Cache Shorts Test Step 2 Chapter 9 Removal and Replacement Procedures 831...
Страница 853: ...L3 Cache Shorts Test Step 4 Chapter 9 Removal and Replacement Procedures 833...
Страница 854: ...L3 Cache Shorts Test Step 5 834 Eserver pSeries 670 Service Guide...
Страница 971: ...7040 Model 671 Media Subsystem 1 2 3 4 5 6 7 8 9 10 Chapter 10 Parts Information 951...
Страница 973: ...Power and SCSI Cables to the Media Subsystem 1 2 3 5 4 6 Chapter 10 Parts Information 953...
Страница 986: ...966 Eserver pSeries 670 Service Guide...
Страница 990: ...970 Eserver pSeries 670 Service Guide...
Страница 1005: ...error Handle unexpected modem responses expect 8 r or 7 r or 6 r or 4 r or 3 r delay 2 done Appendix D Modem Configurations 985...
Страница 1018: ...998 Eserver pSeries 670 Service Guide...
Страница 1019: ...Appendix E Ground Path The ground path for the pSeries 670 is shown in the following figure 999...
Страница 1020: ...1000 Eserver pSeries 670 Service Guide...
Страница 1028: ...1008 Eserver pSeries 670 Service Guide...
Страница 1031: ......
Страница 1032: ...Printed in U S A July 2003 SA38 0615 03...