Alarms Interface Port Pinouts; Table 111 Alarms Interface Port Pinouts - Alcatel-Lucent 7750 SR-a4 Installation Manual

CPM-a Port Types

Alarms Interface Port Pinouts

Pin Name
1 CRIT_ALARM_COM
2 CRIT_ALARM_NO
3 MJR_ALARM_NC
4 +24 VDC source 100 mA
referenced to chassis ground
5 ALARM_IN4_EXT_+
6 ALARM_IN3_EXT_+
7 ALARM_IN2_EXT_+
8 ALARM_IN1_EXT_+
9 CRIT_ALARM_NC
10 MJR_ALARM_COM
11 MJR_ALARM_NO
12 ALARM_IN4_EXT_RTN
13 ALARM_IN3_EXT_RTN
14 ALARM_IN2_EXT_RTN
15 ALARM_IN1_EXT_RTN
218
Refer to the 7750 SR OS Basic System Configuration Guide for more details about
configuring the alarm inputs.
Table 111 describes the alarms interface port pinouts.
Table 111: Alarms Interface Port Pinouts
Description
Common contact for Critical alarm relay.
Normally open contact will be connected to the common contact
during a Critical alarm state.
Normally closed contact will be disconnected from the common
contact during a Major alarm state.
Available as a source voltage for use with Alarm In 1-4.
External alarm input 4 (external relay dry contact closure to pin 12).
External alarm input 3 (external relay dry contact closure to pin 13).
External alarm input 2 (external relay dry contact closure to pin 14).
External alarm input 1 (external relay dry contact closure to pin 15).
Normally closed contact will be disconnected from the common
contact during a Critical alarm state.
Common contact for Major alarm relay.
Normally open contact will be connected to the common contact
during a Major alarm state.
External alarm input 4 (external relay dry contact closure from pin 5).
External alarm input 3 (external relay dry contact closure from pin 6).
External alarm input 2 (external relay dry
contact closure from pin 7).
External alarm input 1 (external relay dry
contact closure from pin 8).
7750 SR-a4 and SR-a8 Installation Guide