Specifications

3-34
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-03
Chapter 3 Configuring with the Command-Line Interface
Configuring the NM-AIC-64, Contact Closure Network Module
Configuration Examples
Examples of the following configurations are described in Appendix A, “Configuration Examples,”on
page A-1:
• VoATM over AAL2 on the ATM Interface Configuration Example, page A-12
• VoATM over AAL5 on the ATM Interface Configuration Example, page A-14
Configuring the NM-AIC-64, Contact Closure Network Module
The Alarm Interface Card Network Module (AICNM) is an optional card that expands network
management capabilities for customer-defined alarms. The AIC has its own CPU that communicates
with the router and external media through serial communication channels. The AIC reduces service
provider and enterprise operating costs by providing a flexible, low-cost network solution for migrating
existing data communications networks (DCNs) to IP-based DCNs. The AIC provides its users with a
single “box” solution because it can be configured in the same router along with other operation, alarm,
maintenance, and provisioning (OAMP) interfaces.
More than one AIC can be installed per router. For example, a Cisco 3662 can have up to five AICs, and
its sixth NM slot can be used for router communication. The Cisco 3640 can have up to three AICs, with
the fourth NM slot reserved for communication, and so forth.
The AIC provides a total of 64 alarm inputs. Eight of the 64 point are software configurable for
measuring either analog inputs or discrete inputs. The remaining 56 points are fixed to measure discrete
points only. The AIC also provides 16 control relay outputs.
The discrete alarm input can be activated through ground or negative battery input. The negative battery
range is -36V to -72V. The analog alarm is software configurable for either DC voltage or current. It can
measure voltage from -60 to 60V or current from 0 to 20mA, but the configurable range is 4 mA to
20mA. The standard 16 control relays can be configured to turn on or turn off an external device.
The AIC’s 64 input contact points can control and monitor network elements and other non-intelligent
interfaces, permitting the detection and report of alarms such as the following:
• Network element alarm states
• Building security (door and window open and close)
• Fire and smoke indication
• Building environmentals (temperature and humidity)
• Utility power readings
When an event occurs, such as a door alarm or an open gate, the AIC maps the simple discrete and analog
alarms to preprogrammed intelligent messages and transports the messages to destinations in the
IP network, typically to a Network Operations Center (NOC). These messages are generated either in
Transaction Language 1 (TL1) or in Simple Network Management Protocol (SNMP), which are used by
a NOC’s Operations Support System (OSS).
When the AIC is incorporated into the Cisco DCN solution platforms, all the AIC’s contact-closure
alarms are routed and reported through the same network and systems as the intelligent network elements
(NEs). This facilitates continued use of the existing OSS and its associated networks. A Cisco router with
an AIC sends TL1 or SNMP messages to the OSS autonomously or in response to TL1 or SNMP
commands from the OSS, as shown in Figure 3-2. TL1 supports two sessions, with the port numbers
5011 and 5012, respectively, and SNMP supports four sessions.