User Information and Service Guide - HP Carrier-Grade Server cc3310

Chapter 9 113
12 Service: Technical Reference
Introduction
This section includes:
• Connector pinouts
• Information on jumpers
Connector Pinouts
This section describes certain I/O interface connectors of the server.
Alarms
The alarms port interface is a standard DB15-pin connector (see Figure 12-1). 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 common and normally open contact outputs. The major and minor alarms contain external
reset circuits. Table 12-1 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.
Figure 12-1. 15-Pin Alarms Connector
18
915
Table 12-1. Alarms Connector Pinout
Pin Description Pin Description
1 Minor reset positive 9 Minor alarm normally closed
2 Minor reset negative 10 Minor alarm common
3 Major reset positive 11 Major alarm normally open
4 Major reset negative 12 Major alarm normally closed
5 Critical alarm normally open 13 Major alarm common
6 Critical alarm normally closed 14 Power alarm normally open
7 Critical alarm common 15 Power alarm common
8 Minor alarm normally open