Cisco Systems 3660 manual Installing the Alarm Terminal Block, Terminal Meaning

Page 7

Chapter 4 Installation on Cisco 3660 Routers

Installing the Alarm Terminal Block

The following warning applies to routers that use a DC power supply:

Warning After wiring the DC power supply, remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Installing the Alarm Terminal Block

The alarm port on the Cisco 3660 rear panel (see Figure 4-9) provides relay outputs to connect the router to a remote alarm.

Figure 4-9 Alarm Port on the Cisco 3660 Router

VCC OK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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FXS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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SEE MANUAL BEFORE

INSTALLATION

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SERIAL 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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TXD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Slot 6

Slot 0

Slot 5

Alarm port

Slot 4

 

Slot 2

 

Slot 3

 

 

Slot 1

 

 

 

22660

The terminals are described in Table 4-1. In order to operate the alarm port, wire the P terminal and one of the other terminals (NO and NC).

Table 4-1 Alarm Terminal Block Connections

 

 

Terminal

Meaning

 

 

 

 

 

 

 

 

P

Primary—This pin is connected to the common contact of the alarm relay.

 

 

 

 

 

 

 

NO

Normally open—This pin is connected to the “normally open” contact of the alarm

 

 

 

relay, and is disconnected from the primary pin during normal system operation.

 

 

 

During an alarm condition it is connected to the primary pin by the alarm relay.

 

 

 

 

 

 

 

NC

Normally closed—This pin is connected to the “normally closed” contact of the

 

 

 

alarm relay, and is connected to the primary pin during normal system operation.

 

 

 

During an alarm condition it is disconnected from the primary pin by the alarm relay.

 

 

 

 

 

 

 

 

 

 

NEBS Level 3 and ETSI Compliance Kit Installation Guide for Cisco 3620, Cisco 3640, and Cisco 3660 Routers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

78-5450-06 B0

 

 

4-7

 

 

 

 

 

Image 7
Contents Attaching the 23-Inch Rack-Mounting Brackets Installation on Cisco 3660 Routers78-5450-06 B0 Cable Management Bracket to Cisco 3660 Chassis Installing the Cable Management BracketCable Management Bracket on the Cisco 3660 Chassis Installing the Ground LugCrimping the Lug Around the Wire Ground Lug Fastened to Cisco 3660 Chassis Making Network ConnectionsTerminal Meaning Installing the Alarm Terminal BlockReinstall network cables, and turn on power to the router

3660 specifications

The Cisco Systems 3660 is a versatile and robust router designed for medium-sized enterprises and branch offices looking for reliability and performance in their networking solutions. Introduced in the late 1990s, the 3660 played a pivotal role in enabling organizations to manage their data traffic efficiently, while supporting a wide range of networking applications.

One of the central features of the Cisco 3660 is its modular architecture. This allows for the integration of various interface cards, enabling users to customize the router according to their specific needs. The router supports both WAN and LAN connectivity, with options ranging from Digital Signaling 1 (DS1) to E1 and even analog modems, making it adaptable to different environments and bandwidth requirements.

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The Cisco 3660 is equipped with sophisticated security features that guard against unauthorized access and cyber threats. It supports technologies such as VPN (Virtual Private Network) and firewalls, which are crucial for protecting sensitive information as it transits across the network. Additionally, the router can implement Quality of Service (QoS) features to prioritize traffic, ensuring that critical applications receive the necessary bandwidth for optimal performance.

The device is also recognized for its scalability. Organizations can expand their routing capabilities seamlessly as their needs grow. The Cisco 3660 can be upgraded with additional network interfaces and services, accommodating higher levels of traffic and more demanding applications over time.

In terms of reliability, the Cisco 3660 includes features such as redundant power supplies and fan trays, which help maintain operational continuity. This resilience is vital for business environments where downtime can result in lost revenue and productivity.

Overall, the Cisco Systems 3660 stands out as a powerful networking solution characterized by its modular design, protocol flexibility, robust security features, and scalability. Its commitment to reliability and performance has made it a trusted choice for organizations aiming to enhance their network infrastructure. Despite the evolution of networking technology, the 3660 remains relevant for many enterprises looking for a dependable router solution.