Cisco Systems 8600 Series manual Alarm/Status Monitor Card

Alarm/Status Monitor Card

the secondary Broadband Control Card becomes primary (active), then its LAN port becomes active. The SV+ workstation will automatically try to restore communications over the LAN and will interface with the newly active Broadband Controller Card.

For small networks, one SV+ workstation is adequate to collect statistics and provide network management. For larger networks additional SV+ workstations may be required. Refer to the Cisco StrataView Plus Operations Guide for more information.

Alarm/Status Monitor Card

The Alarm/Status Monitor (ASM) card is a front card and a member of the BPX switch Common Core group. Only one is required per node and it is installed in slot 15 of the BPX switch. It is used in conjunction with an associated back card, the Line Module for the ASM (LM-ASM) card. The ASM and LM-ASM cards are non-critical cards used for monitoring the operation of the node and not directly involved in system operation. Therefore, there is no provision or requirement for card redundancy.

Features

The ASM card provides a number of support functions for the BPX switch including:

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Telco compatible alarm indicators, controls, and relay outputs.

Node power monitoring (including provision for optional external power supplies).

Monitoring of shelf cooling fans.

Monitoring of shelf ambient temperature.

Sensing for the presence of other cards that are installed in the BPX switch.

Functional Description

There are four significant circuits controlled by the ASM processor: alarm, power supply monitor, fan and temperature monitor, and card detection. The alarm monitor controls the operation of the front panel alarm LEDs and ACO and history pushbuttons as well as the alarm relays which provide dry contact closures for alarm outputs to customer connections. BPX switch system software commands the ASM card to activate the major and minor alarm indicators and relays.

The power supply monitor circuit monitors the status of the -48V input to the shelf on each of the two power buses, A and B. The status of both the A bus and B power bus is displayed on the ASM front panel.

Each of the three cooling fans is monitored by the fan monitor circuit which forwards a warning to the BPX switch system software if any fan falls below a preset RPM. Cabinet internal temperature is also monitored by the ASM which sends the temperature to the system software so it may be displayed on the NMS terminal. The range that can be displayed is 0 degrees to 60 degrees Centigrade.

Front Panel Description

The front panel displays the status of the node and any major or minor alarms that may be present. Figure 3-6illustrates the front panel of the ASM card. Each front panel feature is described in Table 3-4.

3-12Cisco BPX 8600 Series Reference