IBM 87302RU, Планирование и руководство по установке

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v Alarm connectors: The LAN module provides one Telco DB15 alarms connector
(male) for critical, major, and minor Telco alarms. Each of the alarms has a relay
that enables system alarm indicators to be daisy-chained together. Table 9 shows
the pinouts for the Telco alarms connector.
Figure 18 shows the alarms connector.
Note: The service processor, management module, or systems-management
function must monitor the alarm reset inputs to maintain the fault condition
that is set for the unit. The alarm reset inputs can be voltages in excess of
standard logic levels, so they need to be electrically or optically isolated from
the monitoring logic.
Table 9. Pinouts for Telco alarms connector
Pin Number Description I/O Pin
Number
Description I/O
1 Minor alarm reset + I 9 Minor alarm
normally closed
O
2 Minor alarm reset - I 10 Minor alarm
common
O
3 Major alarm reset + I 11 Major alarm
normally open
O
4 Major alarm reset - I 12 Major alarm
normally closed
O
5 Critical alarm
normally open
O 13 Major alarm
common
O
6 Critical alarm
normally closed
O 14 Reserved O
7 Critical alarm
common
O 15 Reserved O
8 Minor alarm normally
open
O
Alarms
1 8
9 15
Figure 18. Alarms connector
Chapter 2. BladeCenter T unit components
31