Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 2 Cisco IGX 8400 Series Cards
Alarm Relay Module
Caution To avoid disruption of necessary network traffic, do not generate a major alarm during periods of high
network traffic.
Step 5 Check that the major LED lights up on the front card faceplate of the ARM.
Step 6 Using a voltage/ohm meter (VOM), make sure continuity exists between pins 16 and 17 and between
pins 35 and 36 at the DB-37 connector on the ARI card.
Step 7 Remove the alarm from the node by restoring the connection you disabled in Step 4.
Step 8 With the VOM, check that the reading between pins 16 and 17 and pins 35 and 36 are open and the major
LED is not on.
Alarm output connections are made at the DB-37 connector on the ARI card. The connector pin
assignments with the alarm signal names are listed in Table 2-7.
ARM Troubleshooting
The following paragraphs describe the maintenance and troubleshooting features associated with the
ARM card set. Preventive maintenance is not necessary.
Table 2-7 ARI Alarm Connector Pinouts
Pin Number Alarm Type Alarm Name Alarm Description
1 – CHASSIS Protective ground
3NetworkNWMAJAMajor—Normally open contact
22 Network – Major—Normally closed contact
4NetworkNWMAJCMajor—Common contact
10 Node MNVISA Minor visual—Normally open contact
11 Node – Minor visual—Normally closed contact
12 Node MNVISC Minor visual—Common contact
16 Node MJAUDC Major audible—Common contact
17 Node MJAUDA Major audible—Normally open contact
23 Network NWMINA Minor—Normally open contact
24 Network – Minor—Normally closed contact
25 Network NWMINC Minor—Common contact
29 Node NWAUDA Minor audible—Normally open contact
30 Node – Minor audible—Normally closed contact
31 Node NWAUDC Minor audible—Common contact
35 Node MJVISC Major visual—Common contact
36 Node MJVISA Major visual—Normally open contact