Abstract: A secure payment system comprises a merchant POS client and a remote POS server. The merchant POS client comprises a reading device for reading a customer user token and for accepting transaction details and customer verification data, and also a computing device with access to a communications network and in communication with the reading device. The merchant POS client also comprises a merchant token associated with the remote POS server. The remote POS server is in communication with the merchant POS client through the communications network, and one or more elements of the merchant POS client business logic are assured by the remote POS server and not the merchant POS client. A merchant token for use in such a merchant POS client is described, as is a suitable reader device, and a method of conducting a transaction using such a payment system.

Abstract: A credit account is established for a merchant. A variable credit limit is set for the credit account. An indication is received that the merchant has accepted a payment account transaction to be charged to a customer's payment account. A transaction amount may be associated with the payment account transaction. The indication may also indicate that the payment account transaction has been authorized by an issuer of the customer's payment account. There may be a response in real time to the indication by instantaneously increasing the variable credit limit for the merchant's credit account by an amount that corresponds to the transaction amount.

Abstract: Methods and systems for facilitating operation of mobile devices as either consumer payment devices and/or merchant payment devices for completing purchase transactions. A process includes a consumer mobile device initializing a two-sided payment application, receiving a handshake indication at a merchant location from a merchant device running a copy of the two-sided payment application, and establishing a communications path between the consumer mobile device and the merchant device via a remote network connection. Purchase transaction detail data is then exchanged, the purchase transaction detail data is transmitted to a mobile gateway computer for authorization processing, and both the mobile device processor and the merchant device processor receive an authorization message to consummate the purchase transaction.

Abstract: A secure payment system comprises a merchant POS client and a remote POS server. The merchant POS client comprises a reading device for reading a customer user token and for accepting transaction details and customer verification data, and also a computing device with access to a communications network and in communication with the reading device. The merchant POS client also comprises a merchant token associated with the remote POS server. The remote POS server is in communication with the merchant POS client through the communications network, and one or more elements of the merchant POS client business logic are assured by the remote POS server and not the merchant POS client. A merchant token for use in such a merchant POS client is described, as is a suitable reader device, and a method of conducting a transaction using such a payment system.

Abstract: A control system for a pumping system in a pumping vehicle is disclosed. The control system includes a valve controller unit having an addressable communication module configured to exchange control and status data regarding a pump valve with at least one valve interface unit. The control system also includes a valve interface unit having an addressable communication module configured to exchange control and status data regarding a pump valve with at least one valve controller unit. The control system further includes a serial communication link communicatively connecting the valve interface unit and the valve controller unit.

Abstract: A control system for a pumping system of a pumping vehicle is disclosed. The control system includes a valve control unit communicatively connectable to a plurality of valve interface units of one or more pumping vehicles, the valve control remote from at least one of the one or more pumping vehicles and configured to independently exchange control and status data with the plurality of valve interface units regarding at least one pump valve associated with each of the plurality of valve interface units. The control system also includes a valve interface unit communicatively connected to the valve control unit, the valve interface unit configured to exchange control and status data regarding the pump valve with the valve control unit. Methods of communicating commands in a control system and a fire apparatus are also disclosed.