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Gateway C251 GSM Router

Connect dial-only devices
to a GSM Network

The JBM Electronics Gateway C251 is a compact wireless router designed to economically connect devices to a cellular network. This Linux-based router allows TCP and async devices access to a GSM network. The C251 provides protocol conversion, security and routing for the terminal’s data. The C251 provide a dial-tone simulator that supports dial only devices such as electric meters, ATMs and POS terminals. This preserves the life of the terminals while eliminating the POTS line.

The C251’s low price point and advanced features provides a simple solution that can be deployed in a variety of network environments. . The C251 is designed for low bandwidth applications, if higher bandwidth is required; the Gateway C131 supports 3G connections. The C201 is the CDMA cell modem version of this router.

The C251 provides all of the processing capabilities needed to interface terminal devices to the host system, including custom headers, data manipulation and special routing. The Gateways’ fallback and management capabilities allow the units to be quickly integrated into existing networks and management systems.

Wireless Applications
C251 Specifications

Features

The C251 provides the following ports and software:

	One 10/100BaseT Ethernet port
	One Async Dial-Tone port
	Integrated GPRS GSM modem
	Support for normal connections (56 KB) and Data Plans (144 KB)
	Firewall, NAT and Port Forwarding
	VPN, SSL and 3DES Support
	DHCP Client and Server
	Dynamic DNS Support
	IP Routing
	Bandwidth optimization
	Web based configuration and management

Each port is independent, which allows the C251 to simultaneously support multiple devices.

Benefits

	Immediate deployment
	Support dial-only devices
	No circuit installation charges
	Increased mobility
	Tremendous improvements in transaction speeds
	Eliminate dedicated dial or leased lines for remote devices
	Lower transaction fees for IP connectivity versus dial or Leased Line
	Reduction in recurring phone line costs
	Lower capital expense by maintaining to use existing equipment
	No need to retrain employees on new equipment
	Quick and easy to install
	Seamless installation to existing systems and equipment
	Supports different processors through application-specific headers
	Selects TCP session and header format via dial string or data
	Facilitates remote management via IP connectivity using Telnet or SNMP
	Improves overall manageability of remote devices and reduce truck rolls
	Approved by AT&T and T-Mobile

You can order JBM products directly by phone, mail, or fax. For correct Wireless Series ordering instructions, click here. If you have any questions about our product configurations or options, please contact us.

Other Gateway Models

The Gateways provide a wide range of port configurations, for a single port to eleven port units. Each configuration supports different industry applications and terminal connections. Information on the various C-Series models is available here.

Printer friendly (Adobe Acrobat) version of the C251Flyer.