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9 Technical Reference
This section includes:
•
Connector pinouts
•
Information on jumpers
Connector Pinouts
This section describes certain I/O interface connectors of the IBM
Alarms
The alarms port interface is a standard DB15-pin connector (see Figure 38). This connector allows
remote display of alarm conditions. Each alarm (Major, Minor, Critical and Power) is the output of
a STDT relay contact. A common contact with normally open and normally closed connections is
included. The power alarm has just a common and normally open contact outputs. The major and
minor alarms contain external reset circuits. Table 29 gives the pinout of the alarms connector.
CAUTION
Do not apply more than 60 Volts (maximum) to any pin or combination of pins
on the alarms connector.
Table 29.
Alarms Connector Pinout
Pin
Description
1
Minor reset positive
2
Minor reset negative
3
Major reset positive
4
Major reset negative
5
Critical alarm normally open
6
Critical alarm normally closed
7
Critical alarm common
8
Minor alarm normally open
108
1
9
Figure 38. 15-pin Alarms Connector
Pin
9
10
11
12
13
14
15
®
xSeries 343 server.
8
15
Description
Minor alarm normally closed
Minor alarm common
Major alarm normally open
Major alarm normally closed
Major alarm common
Power alarm normally open
Power alarm common
Technical Reference
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