C H A P T E R

10-1Cisco 8110 Broadband Network Termination Unit

78-11666-01

10External Alarms

This chapter reviews the external alarm functions which are required to maintain the network includingcurrent alarms and sending and receiving loopback cells. It is organized as follows:

External Alarms Configuration, page 10-1 External Alarms Maintenance, page 10-3

External Alarms ConfigurationCisco 8110 supports interface alarms per ANSI & ETSI standards for multiplexing equipment. TheAlarm connector pinout is described in Appendix C.The alarm menu can be accessed through the Configuration Menu.

Step 1 When you login to the Cisco 8110 and type ? at the prompt, the Root Menu is displayed.Step 2 Type any portion of the word configuration and press RETURN. Then type ? and press RETURN.

The Configuration Menu is displayed. Enter ext_alarms to display the screen shown in Figure 10-1.The parameters are defined in Table 10-1.

Figure 10-1 External Alarms Configuration MenuCisco 8110::host: configuration ext_alarms$ ?show admin dcl_level nameonlim onvc out_dcl_level uptop exit ?

Note After you have executed any of the following commands, you can check your entry for thatcommand. Simply type show at the prompt and press RETURN. The command, togetherwith the entry you typed, is displayed on the screen.

The parameters shown in Figure 10-1 are defined in Table 10-1

Table 10-1 External Alarms Configuration ParametersFIELD DESCRIPTIONshow shows the external alarm configuration and stateadmin sets the external alarm inputs administrative states

10-2Cisco 8110 Broadband Network Termination Unit

78-11666-01

Chapter 10 External AlarmsExternal Alarms Configuration

Figure 10-2 shows the External Alarm Configuration display.SHOW - This command displays the external alarms configuration. At the prompt, type the commandand press return. The type of information shown in Figure 10-2 is displayed.

Figure 10-2 External Alarm Configuration DisplayCisco 8110::host: configuration ext_alarms$ showInput_____

Index State Admin Dcl_Level Alarm Name 1 Off Active Low External Alarm 1 2 Off Active Low External Alarm 2 3 Off Active Low External Alarm 3 4 Off Active Low External Alarm 4

Output______

State On LIM On VC Dcl_Level Off Disabled 10 Norm_Deenergized

ADMIN This command sets the external alarm administrative state. At the prompt, type the commandand press RETURN. The following prompt is displayed:Usage: admin (active|oos)

DCL_LEVEL This command sets the input level at which an alarm is declared At the prompt, typethe command and press RETURN. The following prompt is displayed:

Usage: dcl_level (high|low)

dcl_level sets the declaration level for the external alarms inputs (high or low)name permits the user to provide a name for the external alarms (16

characters long)onlim enables external alarm output activation for LIM alarmsonvc enables external alarm output activation if more than a specified

number of VC alarms are declaredout_dcl_level sets the external alarm output relay alarm state

Table 10-1 External Alarms Configuration ParametersFIELD DESCRIPTION

External alarm selectionactive Alarm input is activeoos Alarm input is out of service

external alarm selectionhigh high level input (see pin description)low low level input (see pin description)

10-3Cisco 8110 Broadband Network Termination Unit

78-11666-01

Chapter 10 External AlarmsExternal Alarms Maintenance

NAME This command sets a 32 character alarm name At the prompt, type the command and pressRETURN. The following prompt is displayed:

Usage: name

ONLIM Select LIM condition for external alarm generation. At the prompt, type the command andpress RETURN. The following prompt is displayed:Usage: onlim (disabled|major|all)

ONVC This command selects a VC condition for external alarm generation. At the prompt, type thecommand and press RETURN. The following prompt is displayed:Usage: onvc

OUT_DCL_LEVEL This command selects external alarm output level. At the prompt, type thecommand and press RETURN. The following prompt is displayed:Usage: out_dcl_level (deenergized|energized)

External Alarms MaintenanceThe External Alarms Maintenance Menu commands are accessible from the Maintenance Menu.

Step 1 When you log into the Cisco 8110 and type ? at the prompt, the Root menu is displayed.Step 2 Type any portion of the word maintenance and press RETURN Then type ? and press RETURN. The

Maintenance Menu is displayed.Step 3 Type alarms to display the submenu shown in Figure 10-3.

external alarm selectionlength 1..32 length of string

disable LIM alarms do not generate external alarmsmajor Only Major LIM alarms generate external alarmsall All LIM alarms generate external alarms

number of VCs in alarm state for alarm generation

deenergized low level (see pin description)energized high level (see pin description)

10-4Cisco 8110 Broadband Network Termination Unit

78-11666-01

Chapter 10 External AlarmsExternal Alarms Maintenance

Figure 10-3 Alarms Maintenance Submenu

Cisco 8110::host: maintenance:alarms$ ? system external battery power

ces vc lim up top exit ?

SYSTEM This command is used to view the general system alarm. At the prompt, type the commandand press RETURN.

Figure 10-4 System Alarms submenu

GENERAL SYSTEM ALARMS

---------------------

Self Test failed

Link Down

CES Down

External Timing FailureEXTERNAL This command is used to view the alarm state. At the prompt, type the command andpress RETURN. The type of information shown in Figure 10-5 is displayed:

Figure 10-5 External Alarms Maintenance Display

Cisco 8110::host::maintenance:alarms:external $State Alarm Nameoff External Alarm 1off External Alarm 2off External Alarm 3off External Alarm 4

VC This command is used to view the VC alarm state (see chapter 6 VC Alarms Maintenance)POWER This command indicates removable power supply alarm (see chapter 12 Power SupplyMaintenance).CES This command is used to view the CES alarm status (see Chapter 14)LIM This command is used to indicate which LIM alarm has been activated. (see chapter 7 LIMMaintenance)BATTERY This command is used to view the NVRAM battery state.