2 ip power controller, 3 user alarms – Compaq EK-ASIP2-OG. D01 User Manual
Page 30
Installing the AlphaServer IP Platform Hardware
2–8 AlphaServer Intelligent Peripheral Platform Hardware Owner's Guide
Table 2-6: LSI/120 Loop-Start 50-Pin Designations
RING 1
1
26
TIP 1
RING 2
2
27
TIP 2
RING 3
3
28
TIP 3
RING 4
4
29
TIP 4
RING 5
5
30
TIP 5
RING 6
6
31
TIP 6
RING 7
7
32
TIP 7
RING 8
8
33
TIP 8
RING 9
9
34
TIP 9
RING 10
10
35
TIP 10
RING 11
11
36
TIP 11
RING 12
12
37
TIP 12
RING NC
13
38
TIP NC
RING NC
14
39
TIP NC
RING NC
15
40
TIP NC
RING NC
16
41
TIP NC
RING NC
17
42
TIP NC
RING NC
18
43
TIP NC
RING NC
19
44
TIP NC
RING NC
20
45
TIP NC
RING NC
21
46
TIP NC
RING NC
22
47
TIP NC
RING NC
23
48
TIP NC
RING NC
24
49
TIP NC
RING NC
25
50
TIP 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.