VILINK ITS equipment: VK230R is an extremely flexible and low-cost solution for connecting multiple devices in a fault-tolerant data self-healing network. Unlike most modems, there are no limitations on the number of nodes present in the network. The VK230R can transmit and receive data at speeds up to 112 Kbps throughout the network using Packet Data Transmission technology. Each unit is capable of receiving data from either an uplink or downlink and then re-transmitting the data to the respective uplink or downlink direction.
With an embedded micro-controller in the unit, all configurations and equipment settings can be easily managed through the Network Monitoring System (NMS). Control signals which are used to control data path are user programmable, featuring: master, sub-master and slave node settings, anti-streaming logic (even though there is no data bubbling in the VK230 network), poll and respond data transmission timing, data rate, data terminating and other unique functions.
The Graphics User Interface (GUI) of the VK230 Network Monitoring System provides a user-friendly menu on a standard PC generally located at a control center. The network engineer may also utilize Vilink’s TCP/IP Network Software Module option for monitoring multiple VK230 networks. There is also available a SNMP software package.
The VK230 is designed with Automatic Gain Controls (AGC) technique, a unique modulation scheme and state of the art circuit design. Specific optics provide the flexibility to meet any system requirement. The VK230 also provides a female DB25 for data connections, a female RJ11 for NMS PC connections, and a two-terminal block for power connection.

Support RS-232, RS-422 and RS-485 Interfaces
Asynchronous Data Speed Up To 112 Kbps
Master/Slave Configurations
Distances Up To 50 Km Between Two Nodes
Dual Optic With AGC Receivers
Supervisory and Management with (GUI) NMS
TCI/IP Software Package
3 RU 19″ Rack Module (VK2300 Chassis)