HP Carrier-grade cc3300 User Information and Service Guide - HP Carrier-Grade - Page 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 1 8 9 15 Table 12-1. Alarms Connector Pinout Pin 1 2 3 4 5 6 7 8 Description Minor reset positive Minor reset negative Major reset positive Major reset negative Critical alarm normally open Critical alarm normally closed Critical alarm common Minor alarm normally open Pin 9 10 11 12 13 14 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 Chapter 9 113