Horizontal Positioning

Chapter

Rack-Mounting the MGX 8220 Units

MGX 8220 modules are designed to be mounted to two vertical rack-mounting rails. A front-mounting rail is used as one mounting point using the flanges provided at the front of each MGX 8220 module. A second rail, either at the rear of the rack or at an intermediate position, is used for the second mounting point (mounting brackets are provided for attaching the module to the second rail). The allowable positions for intermediate rails is shown in Figure 7-1.

Figure 7-1 Mounting Rail Positions

MGX 8220 Depth 21.39”

19.86"

10.0"

5.0"

Module

Front rail

Rear rail

H8274

Allowable intermediate

rail positions

Vertical Positioning

The MGX 8220 units are mounted in a specific order from the bottom to the top.

The AC power module (if used) is mounted first, then the fan cooling assembly is mounted, then the first shelf is mounted, and then the second shelf (if installed) is mounted.

If a third and fourth shelf is installed, a booster cooling assembly must be mounted immediately above the second shelf and immediately below the third and fourth shelves. The plenum or spacer unit is mounted last above the highest shelf. If a cable management kit is used in a two shelf or four shelf rack, the top unit must be a plenum because cable management hardware is not supported by the spacer unit.

When each module is installed, there should be approximately 1/32 of an inch vertical space between adjacent modules. This can be achieved by ensuring that each module is installed at the center of each standard rack increment. This space is important because it allows cards, fan, and power entry modules to be removed without interference. Hardware is available in the installation kits for this purpose. (See Figure 7-4.)

Racks with one and two shelves are shown in Figure 7-2.Racks with three and four shelves are shown in Figure 7-3.

The MGX 8220 shelf and cooling assembly rely on their contact with the rack for grounding. Therefore, the rack should be properly connected to earth ground.

	Cisco MGX 8220 Installation and Configuration
7-6	Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003

MGX 8220 specifications

The Cisco Systems MGX 8220 is a versatile, high-performance media gateway that has become an integral component in the telecommunications infrastructure. Designed to facilitate the transition from traditional circuit-switched networks to advanced packet-switched environments, the MGX 8220 supports a wide array of voice, video, and data services, making it an essential tool for service providers and enterprises seeking to enhance their network capabilities.

One of the key features of the MGX 8220 is its robust signaling and media processing capabilities. Equipped with support for both Voice over IP (VoIP) and traditional telephony protocols, this gateway enables seamless integration of different communication formats. It boasts a modular architecture, which allows for the addition or removal of various line cards to meet changing demands and technology advancements. This modularity provides operators with the flexibility to scale their services without significant overhauls to their existing infrastructure.

The MGX 8220 is capable of delivering high-density media handling for a multitude of services. With its support for ATM and IP networks, the gateway can handle TDM (Time-Division Multiplexing) to packet voice conversions efficiently. It is designed to optimize network resources by dynamically allocating bandwidth based on traffic requirements, thus ensuring efficient use of network resources and improved performance.

Another significant characteristic of the MGX 8220 is its enhanced quality of service (QoS) features. This capability ensures that voice and video traffic is prioritized appropriately, minimizing latency and jitter while maximizing overall call quality. By employing sophisticated traffic management techniques, the MGX 8220 can deliver a superior user experience, which is critical for any service provider aiming to offer competitive communication solutions.

Furthermore, the gateway includes built-in security features to protect against unauthorized access and ensure the integrity of sensitive data. This includes encryption for voice and video transmission, as well as support for secure signaling protocols.

Overall, the Cisco Systems MGX 8220 stands out as a comprehensive media gateway solution, providing essential functionalities for modern communication needs. Its combination of modularity, high-density processing, effective QoS management, and security features makes it a compelling choice for organizations looking to modernize their telecommunications infrastructure while ensuring reliability and performance. As businesses continue to evolve and demand more from their networks, the MGX 8220 offers a pathway to future-ready communications.