August 18, 2012

Ad Hoc

What are Ad Hoc and Infrastructure Networks? LAVA’s wireless serial device servers (WiFi ESLs) can operate in Ad Hoc or Infrastructure modes. These two modes are fundamentally different, each with their own advantages and disadvantages. Ad Hoc Networks The Latin expression “ad hoc” translates into English as “for this,” a translation that loosely suggests what ad hoc networks are: networks set up for a single simple purpose. In their simplest form, Ad Hoc networks are peer-to-peer connections between two wireless […]
August 12, 2012

Wireless Ether Serial Links

LAVA has expanded its Ether-Serial Link serial device server line with wireless Ethernet variants of its ESL 1-232-DB9, ESL 2-232-DB9, ESL 1-232-RJ45, and ESL 2-232-RJ45 units. WiFi ESL 1-232-DB9, WiFi ESL 1-232-RJ45   WiFi ESL 2-232-DB9, WiFi ESL 2-232-RJ45 These new wireless serial device servers support 802.11a or 802.11b+g modes, with choices of WEP 64, WEP 128, WPA (TKIP), or WPA2 (AES) encryption. They retain all the functionality of the standard LAVA Ether-Serial Links, with DHCP/manual IP address configuration, intuitive […]
August 8, 2012

Connecting DOS emulators with RS-232

Shergroup Textiles runs its DOS-based accounting system “RealWorld” inside an emulator on a SCO Unix server. This accounting package has a virtual serial interface, but no physical serial port exists on the server. Users at Shergroup can access this accounting package through dedicated terminals. One exception exists however: a user on a Windows system, who needs to run another Windows-based package as well. Shergroup has developed a solution that provides the best of both worlds for this user: on that […]