Ip Power Controller; User Alarms; Table 2-6: Lsi/120 Loop-Start 50-Pin Designations - Compaq EK-ASIP2-OG. D01 Owner's Manual

Installing the AlphaServer IP Platform Hardware

Table 2-6: LSI/120 Loop-Start 50-Pin Designations

RING 1
RING 2
RING 3
RING 4
RING 5
RING 6
RING 7
RING 8
RING 9
RING 10
RING 11
RING 12
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC
RING NC

2.4.1.2 IP Power Controller

The AlphaServer IP Platform supports the following power controller models: 120 Vac, 250
Vac, or -48 Vdc. Each simplex and duplex rackmount system has one or two power
controllers located in the bottom of the cabinet. Each controller supports one BA35x-Sx, ISA
bus expansion chassis, and an AlphaServer 1000A system.
Instructions for wiring the -48 Vdc power controllers to the building's power source are
included in Appendix C.

2.4.1.3 User Alarms

If the AlphaServer IP Platform does not use the -48 Vdc power controller, the user can
connect up to three external TTL signal alarms to the 8-pin MJ connector on the alarm
control module. Refer to Appendix B for a pinout of this connector and the Intelligent
Peripheral Fault Manager for Tru64 UNIX Installation and User's Guide for information on
configuring these alarms.
2–8 AlphaServer Intelligent Peripheral Platform Hardware Owner's Guide
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10 35
11 36
12 37
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25 50
TIP 1
TIP 2
TIP 3
TIP 4
TIP 5
TIP 6
TIP 7
TIP 8
TIP 9
TIP 10
TIP 11
TIP 12
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC
TIP NC