Connecting to the Alarm Port

2

The following figure shows the pinout information for the DB-15 ALARM connector on the front panel.

FIGURE 20 EXTERNAL ALARM I/O CONNNECTORS

Alarm

Connector

1

11

6

2

12

7

NC

COM

NO

Major Alarm

NC

COM

9

10

3

4

External Alarm Input 1

External Alarm Input 2

External Alarm Input 3

External Alarm Input 4

NO

Minor Alarm

To backplane via internal signal converter circuits.

External input uses dry relay contact to pins 14, 15, 13 and 8 for grounding. For active alarm, the relay is closed.

Brocade 6910 Ethernet Access Switch Hardware Installation Guide

21

53-1002580-01

 

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Brocade Communications Systems 53-1002580-01 manual Minor Alarm