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Page 2-6 Document Ref 905675-001 Rev 2

Product Information WWC T1 Set Up & Maintenance Manual

2.3.3 VAPOUR RECOVERY CONTROLLER BOARD (VRC)

The VRC is an independent module which communicates with the calculator

module. After the VRC is initialised at each delivery start, it performs the open

or closed loop vapour recovery process by controlling its own motors and valves.

2.3.4 OPTION CONTROLLER BOARD (OCB)

The Option Module provides an interface to optional modules such as:-

•Unit Price Displays (UPD)

•Product Indicators

•Traffic Lights

•OPU/ODU (as replacement of the above)

•Preset Keypads

2.3.5 HYDRAULIC OPTION MODULES (HOM)

Up to four Hydraulic Option Modules can be connected to the mainboard via the

Dipnet to operate in a similar way to the HCM. The HOMs are designed to

provide the interface to optional hydraulic units eg. Super High Speed, Satellite,

Blender or to extend the number of products to a maximum of five.

Like the HCM, the HOM is responsible for supporting the optional hydraulic

interface by checking the volume pulser devices, counting and checking the two

incoming line volume pulses and by controlling the motor(s) and valves.

2.3.6 I/O EXTENSION BOARD (IEB)

The I/O Extension Board is designed to connect peripherals often used in low-

end configurations (single/twin). The IEB is a piggy-back board attached to the

mainboard and is easy to assemble. The IEB is able to interface to:-

•A preset keypad (same functionality as connected to OCB)

•A simple configuration keypad (dispenser configuration only, no VRC). This

keypad is kept inside the calculator head.

•Four spare additional outputs

2.4 Product Option Matrix (POM)

The product option matrix defines the options of WWC available for each application. For

release status, please check the Software Status Overview. Refer to Appendix A for the

POM.

Note: Not all country specific W&M options are listed (e.g. low-level detection Italy,

display reset methodology for UK etc.)

2.5 Functionality

Refer to the POM in Appendix A for supported functions per application.

Issue A

Tokheim WWC T1 User Manual

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