Help with Wireless Modems specifications:
Network Equipment Type
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| Area Network Type | |||
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| Campus Area Network (CAN) | Campus area networks (CAN) are networks covering multiple local area networks (LANs) at universities, school districts or small business campuses. They are smaller than metropolitan area networks (MAN). | ||
| Enterprise Area Network (EAN) | Enterprise area networks (EAN) are networks that securely connect all locations for business networks. | ||
| Local Area Network (LAN) | Local area networks (LAN) are networks that connect a group of computers and devices, such as printers or scanners, over short distances. | ||
| Metropolitan Area Network (MAN) | Metropolitan area networks (MAN) are networks that connect devices over medium distances, such as a town or city. They are larger reaching than local area networks (LAN) but smaller than wide area networks (WAN). | ||
| Storage Area Network (SAN) | Storage area networks (SAN) are dedicated networks that connect storage devices to other storage devices. | ||
| Wide Area Network (WAN) | Wide area networks (WAN) are networks that connect devices over large physical distances, such as the internet. | ||
| Wireless Local Area Network (WLAN) | Wireless local area networks (WLAN) are networks that connect devices wirelessly over short distances, similarly to local area networks (LAN). | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Form Factor
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| Your choices are... | |||
| Board | The network equipment is a board or card form. | ||
| Ceiling / Wall Mount | The equipment can be ceiling or wall mounted. | ||
| Chassis Mount | The equipment is mounted in a chassis. | ||
| Desktop / Standalone | The equipment is enclosed and can be placed on a desktop or shelf. | ||
| Rack Mount | The network equipment can be mounted in a rack. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Ports / Interfaces
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| Number of Ports | The total number of networking ports which the network equipment provides. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Modem Type
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| Modem Type: | |||
| Your choices are... | |||
| Cable Modem | A cable modem is a device that connects a device to the internet by a coaxial cable. | ||
| Cellular Modem | Cellular modems provide wireless data communication over worldwide cellular networks. | ||
| xDSL Modem |
Digital subscriber lines (xDSL) are a set of technologies that use sophisticated modulation schemes to send data onto copper wires. They are called the last-mile technologies because they are used only for connections from a telephone switching station to a home or office, not between switching stations. xDSL is similar to ISDN. Both operate over existing telephone wires and both need a short connection (less than 20 ft.) to a central telephone office. There are several types of xDSL technologies in use today such as ADSL, SDSL, HDSL:
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| ISDN Modem | Integrated services digital networks (ISDN) is an international standard used to send data, video and voice over digital telephone lines or normal telephone wires. ISDN supports data transfer rates of 64 Kbps. Normally the telephone company installs two lines called B channels; both can be used to send data to achieve data rates of 128 Kbps. A broadband version of ISDN, called B-ISDN, supports data rates of 1.5 Mbps over fiber optic cables. | ||
| Radio Modem | Radio modems are radio frequency transceivers for serial data. Each device connects to a serial port (e.g. RS232) and transceives signals from another matching radio modem. | ||
| Telephone (PSTN) Modem | Public switched telephone network (PSTN) refers to the international telephone system based on copper wires carrying analog voice data. This is in contrast to newer telephone networks based on digital technologies, such as ISDN or FDDI. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Operating Mode
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| Operating Mode | |||
| Your choices are... | |||
| Point-to-Point | The modem/radio modem can transmit to only one modem/radio modem at a time. | ||
| Point-to-Multipoint | The modem/radio modem can transmit to several modems/radio modems at a time. | ||
| Repeater Mode | The modem/radio modem has repeater capabilities. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Performance
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| Frequency Band | The wireless frequencies on which the device can send and receive data. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Maximum Output Power | This is the transmission power of the device. It is defined as the strength of the signals emitted, often measured in mW. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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| Number of Channels: | The number of transmitting and receiving channels of the device. | ||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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| Users | The number of users for which network equipment is designed. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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| Data Rate | The maximum data transfer speed. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Features
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| Features | |||
| Your choices are... | |||
| Power-over-Ethernet (PoE) Ready | The device supports power over Ethernet (PoE) signals. Both data and power are delivered in one cable to a powered device (PD). | ||
| VPN | A virtual private network (VPN) is a connection that has the appearance and many of the advantages of a dedicated link, but occurs over a shared network. Using a technique called tunneling, data packets are transmitted across a public, routed network in a private "tunnel" that simulates a point-to-point connection and allows network protocols to traverse incompatible infrastructures. | ||
| Internet of Things (IoT) Compatible | The device is compatible with the Internet of Things (IoT) network. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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