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Cisco ONS 15501 User Guide
78-14134-02, Release 2.0
Chapter 3 Configuring the Cisco ONS 15501
Alarm Contact Closures
Note All commands supported by the Cisco ONS 15501 through the console port are also supported in a
Telnet session.
Configuring for SNMP
When the Cisco ONS 15501's Ethernet port is connected to other Ethernet switches for network
management purposes, it is recommended that either end of the Ethernet port NOT be configured in
auto-negotiation mode, and that both ends of the Ethernet connection be configured in either 10 Mbps
or 100 Mbps half or full duplex mode.
Note The 15501 default Ethernet boot mode is half-duplex 10 Mbps.
For additional information, please refer to the ethmode command.
To configure the Cisco ONS 15501 for SNMP, follow these steps:
Step 1 Connect the Cisco ONS 15501 to an Ethernet LAN using a standard RJ-45 cable.
Step 2 Enter add-snmp-mgr manager-ip to set the SNMP manager IP addresses. The maximum number of
SNMP manager IP addresses is 16.
Step 3 Enter get-snmp-mgr to display the list of SNMP managers.
Step 4 Enter del-snmp-mgr manager-ip to delete an SNMP manager entry.
Step 5 Enter add-snmp-com community-string [ro | rw] to set the SNMP community string for remote
monitoring. The maximum number of SNMP community strings is 16.
Step 6
Enter get-snmp-com to display the list of SNMP community strings.
Step 7 Enter del-snmp-com community-string to delete an SNMP community strings entry.
Alarm Contact Closures
The Cisco ONS 15501 provides a front panel, single form C, discrete external alarm output. (See the
“Cisco ONS 15501 Front Panel” section on page 1-7 for additional information.) The external alarm
output is through the eight wires of an RJ-45 connector.
The following events are reported by the discrete external alarms through individual alarm contacts:
• Alarm 1—Loss of input signal or input signal power below threshold
• Alarm 2—Failure in the pump laser or pump laser temperature
• Alarm 3—Loss of input power supply or power supply out of range
• Alarm 4—Undefined (always on; may be used for power indication)
Note The default state of the alarm contacts is Normally Closed. Depending on which fault condition occurs,
specific alarm contacts open. The corresponding Cisco ONS 15501 LEDs turn on/off. (See the “Cisco
ONS 15501 LED Alarm Definitions” section on page 1-9 for additional information.)