2 Connecting to the Alarm Port
Connecting to the Alarm Port
The
FIGURE 19 ALARM PORT (D-15) PIN OUT
1
15
Wiring Map for Alarm Cable
The signals include relay contacts for major and minor system alarms, and external alarm inputs.
TABLE 4 | SYSTEM STATUS LEDs |
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Switch’s Alarm Port | Funtion | ||
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1 | (MJR_ALARM_CNTR) | Common contact for major alarm relay. | |
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2 | (MNR_ALARM_CNTR) | Common contact for minor alarm relay. | |
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3 | (ALARM_IN3_EXT_P*) | External alarm input 3 (external relay dry contact closure to pin 13). | |
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4 | (ALARM_IN4_EXT_P) | External alarm input 4 (external relay dry contact closure to pin 8). | |
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5 | (No Contact) |
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6 | (MJR_ALARM_NO) | Normally open during major alarm state. | |
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7 | (MNR_ALARM_NO) | Normally open during minor alarm state. | |
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8 | (ALARM_IN4_EXT_RTN†) | External alarm input 4 (external relay dry contact closure from pin 3). | |
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9 | (ALARM_IN1_EXT_P) | External alarm input 1 (external relay dry contact closure to pin14). | |
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10 (ALARM_IN2_EXT_P) | External alarm input 2 (external relay dry contact closure to pin 15). | ||
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11 (MJR_ALARM_NC) | Normally closed during major alarm state. | ||
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12 (MNR_ALARM_NC) | Normally closed during minor alarm state. | ||
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13 (ALARM_IN3_EXT_RTN) | External alarm input 3 (external relay dry contact closure from pin 3). | ||
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14 (ALARM_IN1_EXT_RTN) | External alarm input 1 (external relay dry contact closure from pin 9). | ||
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15 (ALARM_IN2_EXT_RTN) | External alarm input 2 (external relay dry contact closure from pin 10). | ||
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* P indicates positive input.
† RTN indicates return to Ground.
20 | Brocade 6910 Ethernet Access Switch Hardware Installation Guide |
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